WO2005097051A2 - Disulfide dyes, composition comprising them and method of dyeing hair - Google Patents

Disulfide dyes, composition comprising them and method of dyeing hair Download PDF

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Publication number
WO2005097051A2
WO2005097051A2 PCT/EP2005/051412 EP2005051412W WO2005097051A2 WO 2005097051 A2 WO2005097051 A2 WO 2005097051A2 EP 2005051412 W EP2005051412 W EP 2005051412W WO 2005097051 A2 WO2005097051 A2 WO 2005097051A2
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Prior art keywords
formula
solution
alkyl
independently
hair
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PCT/EP2005/051412
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French (fr)
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WO2005097051A3 (en
Inventor
Victor Paul Eliu
Beate FRÖHLING
Dominique Kauffmann
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Ciba Specialty Chemicals Holding Inc.
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Priority to MXPA06011502A priority Critical patent/MXPA06011502A/en
Priority to BRPI0508391-5A priority patent/BRPI0508391B1/en
Priority to US11/547,571 priority patent/US7476260B2/en
Priority to KR1020067022193A priority patent/KR101232694B1/en
Priority to EP05729805A priority patent/EP1750663A2/en
Priority to CN2005800188700A priority patent/CN1997340B/en
Priority to JP2007506763A priority patent/JP5274832B2/en
Publication of WO2005097051A2 publication Critical patent/WO2005097051A2/en
Publication of WO2005097051A3 publication Critical patent/WO2005097051A3/en

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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B44/00—Azo dyes containing onium groups
    • C09B44/10—Azo dyes containing onium groups containing cyclammonium groups attached to an azo group by a carbon atom of the ring system
    • C09B44/16—1,3-Diazoles or hydrogenated 1,3-diazoles ; (Benz)imidazolium
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/46—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing sulfur
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/49—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/49—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds
    • A61K8/4906—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds with one nitrogen as the only hetero atom
    • A61K8/4926—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds with one nitrogen as the only hetero atom having six membered rings
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/49—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds
    • A61K8/494—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds with more than one nitrogen as the only hetero atom
    • A61K8/4946—Imidazoles or their condensed derivatives, e.g. benzimidazoles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q5/00—Preparations for care of the hair
    • A61Q5/10—Preparations for permanently dyeing the hair
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B44/00—Azo dyes containing onium groups
    • C09B44/10—Azo dyes containing onium groups containing cyclammonium groups attached to an azo group by a carbon atom of the ring system
    • C09B44/20—Thiazoles or hydrogenated thiazoles
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B49/00—Sulfur dyes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/80—Process related aspects concerning the preparation of the cosmetic composition or the storage or application thereof
    • A61K2800/94—Involves covalent bonding to the substrate

Definitions

  • the present invention relates to novel sulfide dyes, compositions thereof, to processes for their preparation and to their use for the dyeing of organic materials, such as keratin fibers, wool, leather, silk, cellulose or polyamides, especially keratin-containing fibers, cotton or nylon, and preferably hair, more preferably human hair.
  • organic materials such as keratin fibers, wool, leather, silk, cellulose or polyamides, especially keratin-containing fibers, cotton or nylon, and preferably hair, more preferably human hair.
  • cationic dyes can be used to dye organic material, for example keratin, silk, cellulose or cellulose derivatives, and also synthetic fibers, for example polyamides. Cationic dyes exhibit very brilliant shades. A disadvantage is their unsatisfactory fastness to washing.
  • the actual technical problem of the present invention was to provide dyes that are distinguished by deep dying having good fastness properties with respect to washing, light, shampooing and rubbing.
  • the present invention relates to a method of dyeing keratin-containing fibers, comprising treating the fiber with at least one sulfide dye of formula
  • Ri and R each independently from each other are a residue of an organic dye
  • Yi and Y 2 each independently from each other are unsubstituted or substituted, straight- chain or branched, interrupted or uninterrupted -C C ⁇ 0 alkylene-; -C 5 -C 10 cycloalkylene-; C 5 -C ⁇ oarylene; or-C 5 -C ⁇ oarylene-(C ⁇ -C ⁇ oalkylene)-;
  • Z 3 is hydrogen; and if n is 1.
  • Z 3 is -S-; with the proviso that the method does not comprise treating the fiber with an enzyme of the type of a protein disulfidisomerase (EC 5.3.4.1).
  • Yi and Y 2 are unsubstituted or substituted straight-chain or branched interrupted or uninterrupted ⁇ F-C 5 -C ⁇ 0 cycloalkylene- or -Gi-C-ioalkylene.
  • Disulfid-dyes are used, i.e. wherein in formula (1 ) n is 1.
  • Ri, R 2 , Zi, Z 2 , Yi, Y 2l r and q are defined as in formula (1). Further more preferred is the method of the present invention, wherein the residue of an organic dye is selected from the group of anionic, cationic, neutral, amphoter and zwitterionic dyes, and especially preferred, wherein the residue of an organic dye is a cationic dye.
  • the residue of an organic dye is selected from the group of anthraquinone - acridine, azo, azomethine, hydra- zomethine, benzodifuranone, coumarine, diketopyrrolopyrrol, dioxaxine, diphenylmethane, formazan, indigoid, indophenol, naphthalimide, naphthoquinone, nitroaryl, merocyanine, methin, oxazine, perinone, perylene, pyrenequinone, prrtalocyanine, phenazine, quino- neimine, quinacridone, quinophtalone, styryl, triphenylmethan, xanthene, thiazine and thioxanthene dye.
  • an organic dye is selected from the group of anthraquinone - acridine, azo, azomethine, hydr
  • the residue of an organic dye is selected from azo, azomethin, hydrazomethin, merocyanine, methin and styryl dyes, and more preferred from azo, azomethin dye and hydrazomethin dyes;
  • Suitable nitroaryl dyes of the present invention are for example selected from the following compounds:
  • Suitable anthraquinone dyes suitable for the method of the present invention are the following compounds: 1-[(3-aminopropyl) amino]-anthraquinone (HC Red No. 7), 2-[(2- aminoethyl) amino]-anthraquinone (HC Orange No.
  • Suitable azo dyes are for example the following compounds:
  • Suitable cationic dyes are the following compounds: N-[4-[ [4-(diethylamino) phenyl] [4- (ethylamino)-naphth-l-yl] methylen]-2,5- cyclohexadien-1-yliden]-N-ethyl-ethanim inium- chloride (Basic Blue No.
  • Re, R7. Rs. 9 , Rioand Rn independently from each other are hydrogen; unsubstituted or substituted C C ⁇ alkyl; C 2 -C ⁇ 4 alkenyl; C 5 -C ⁇ 0 aryl; d Ci 0 alkyl-C 5 -Ci 0 aryl; or C 5 -C ⁇ 0 aryl- CrC ⁇ 0 alkyl; and D + is a cationic radical of a substituted or unsubstituted aromatic or heterocyclic compound, wherein the cationic charge may be part of the aromatic compounds or part of the substituent; M is a bivalent radical of an aromatic or heteroaromatic substituted or unsubstituted compound; T is a radical of an aromatic substituted or unsubstituted compound; Q + is a cationic biradical of a substituted or unsubstituted aromnatic or heteroaromatic compound; and
  • D is a radical of a cationic aromatic substituted or unsubstituted heterocyclic compound of formulae
  • Q + is a cationic bivalent radical of an aromatic heterocyclic compound of formulae
  • the asterix * indicates a bond to and/or Z 5 of formula (8); the asterix ** is a bond to Zi and/or Z 2 of formula (8); and M is a bivalent radical of formulae (D19) or
  • the heteroaromatic cycles of the radicals of the formulae (D9) - (D22) may be interrupted by one or more than one -O-, -S-, -(SO 2 )-, -C C ⁇ 0 alkylene or -(NR 52 )-;
  • D + is a radical of a cationic aromatic substituted or unsubstituted heterocyclic compound of formulae
  • Q + is a cationic bivalent radical of an aromatic heterocyclic compound of formulae
  • M is a bivalent radical of formulae (19)
  • Z 7 , Z 8 , Z 9j Z ⁇ o, Z 11 , Z 12 , Z 13 and Z 14 are independently from each other N or a radical of CR 5 ⁇ ;
  • E, E ⁇ , G and G 1 are independently from each other -O-, -S-, -(SO 2 )-, -C r C ⁇ 0 alkylene or -(NR 52 )-;
  • Rl3. R 4. Rl5, Rl8, Rl9. R21. R-S, R23 ⁇ R25) R261 R27, R28J R29, R3O1 R3I1 R32J R33. R34j 35 ⁇ R36. R37 ⁇ R38, R39, R40, Rn. R42, R43, R44. R45, R.6, R47, R48.
  • R49 and R ⁇ are independently from each other hydrogen; halogen; C C 4 alkyl, which is saturated or unsaturated, linear or branched, substituted or unsubstituted, or interrupted or uninterrupted with heteroatoms; a radical of phenyl, which substituted or unsubstituted; a of carboxylic acid radical; sulfonic acid radical; hydroxy; nitrile; C ⁇ -C ⁇ 6 alkoxy, (poly)-hydroxy-C 2 -C 4 -alkoxy; halogen; sulfonylamino; SR 60 . NHR53; NR S4 R 55 ; OR 61 ; SO 2 ; COOR 62 ; NR 56 COR 58 ; or CONR 57 ; and
  • R12 R16, R17, R20, R2 j R50.
  • R54J R55J R56J R57, R ⁇ j R ⁇ OJ R ⁇ i and R ⁇ 2 are each independently of the other hydrogen; unsubstituted or substituted C C ⁇ 4 alkyl, C 2 - C alkenyl, C 5 -C ⁇ 0 aryl, C 5 -C ⁇ oaryl-(CrC ⁇ oalkyl), or -C ⁇ -C ⁇ O alkyl(C 5 -C ⁇ 0 aryl); and
  • An is an anion.
  • D + is a radical of a cationic aromatic
  • ** is a bond to and Zi and/or Z 2 of formula (8).
  • M is a bivalent radical of formula
  • ** is a bond to and Z and/or Z 2 of formula (7) or (8); and n is 1 or 0;
  • T is a radical of formulae
  • R 63 is hydrogen; unsubstituted or substituted d-C ⁇ 4 alkyl; C 5 -C 10 cycloalkyl; C -C 14 alkenyl; C 5 - C ⁇ 0 aryl-(CrC 10 alkyl); Crdoalky rCioaryl); C 5 -C 10 aryl; and R 64 is hydrogen; f unsubstituted or substituted, straight-chain or branched, interrupted or uninterrubted CrC 14 alkyl, C ⁇ -Ciocycloalkyl, C 5 -C ⁇ 0 aryl, or C 5 -Ci 0 aryl-(Ci-C 10 alkyl); d- C ⁇ 0 alkyl(C 5 -C ⁇ 0 aryI);
  • R 67 is hydrogen; or a radical of formula (35a) ⁇ NR 69 ⁇ ; R 68
  • Y 10 is unsubstituted or substituted, straight-chain or branched, monocyclic, from C 3 -alkyl upwards, or polycydic, from C 5 -alkyl upwards, interrupted or uninterrupted, d-C 10 alkylene; C 5 -C ⁇ 0 arylene-(CrC 10 alkylene); or-C 5 - C 10 arylene; and
  • R 68 and R 6 gare each independently of the other hydrogen, unsubstituted or substituted d- C 14 alkyl, C 2 -C 4 alkenyl- -C 5 -C ⁇ oarylen-(C ⁇ -C ⁇ oalkyl), -C ⁇ -C ⁇ oalkylen(C5-doaryl), C 5 - C ⁇ 0 aryl,
  • R71 is hydrogen; unsubstituted or substituted d-C ⁇ 4 alkyl; C 5 -C ⁇ 0 cycloalkyl; C 2 -C 14 alkenyl; C 5 - C 10 aryl; d-doalkyKCg-doaryl); C 5 -C ⁇ oaryl-(CrC ⁇ 0 alkyl); R 72 and R?
  • C 3 are each independently of the other hydrogen; C C 4 alkyl; C 2 -C ⁇ alkenyl; a radical of acarboxylic; a radical of a sulfonic acid; C 5 -C ⁇ 0 aryl; hydroxy, nitril, CrC ⁇ 6 alkoxy, (poly)-hydroxy-C 2 -C 4 -alkoxy, carboxylic acid;; halogen; sulfonylamino; SR 6 o; NHR 53 ; NR 5 4R 55 ; OR 61 ; COOR 62 ; NR 5 6COR 58 ; or CONR 57 ; R53, R54, R55. R56. R57. 58.
  • Reo, ei and R 62 are each independently of the other hydrogen; unsubstituted or substituted d-C ⁇ alkyl; C 2 -C ⁇ alkenyl; -C 5 -C ⁇ oarylen-(CrC 0 alkyl); -d- C oalkylene(Cs-C 10 aryl); orC 5 -C ⁇ 0 aryl;
  • R 76 and R 77 are each independently of the other hydrogen, d-C 1 alkyl, which is saturated or unsaturated, linear or branched, substituted or unsubstituted, or interrupted or uninterrupted with heteroatoms; a radical of phenyl, which substituted or unsubstituted; a radical of carboxylic acid; C 5 -C ⁇ 0 aryl ; a radical of hydroxy, nitril, C ⁇ -C ⁇ 6 alkoxy, (poly)- hydroxy-C 2 -C 4 -alkoxy, carboxylic acid, sulfonic acid; halogen, sulfonylamino, SR 6 o, NHR 53 or NR 54 R 55 , OR 6 ⁇ , SO 2 , COOR 62J CONR 57 ; R53.
  • Reo, Rei and R 62 are each independently of the other hydrogen, unsubstituted or substituted d-C ⁇ alkyl, C 2 -d alkenyl, -C 5 -C ⁇ oarylen-(C ⁇ -C ⁇ 0 alkyl), -C ⁇ - C 10 alkylen(C 5 -C ⁇ oaryl), C 5 -C ⁇ 0 aryl,
  • R79, R78 and R 8 o are each independently of the other hydrogen; C ⁇ -C ⁇ 4 alkyl, which is saturated or unsaturated, linear or branched, substituted or unsubstituted, or interrupted or uninterrupted with heteroatoms; a radical of phenyl, which substituted or unsubstituted; a radical of carboxylic acid; C 5 -C ⁇ oaryl : a radical of hydroxy, nitril, d-d ⁇ alkoxy, (poly)- hy roxy-drd-alkoxy; carboxylic acid; sulfonic acid; halogen; sulfonylamino; SR 6 o; NHR 53 ; NR 54 Rs 5 ; OR 6 ⁇ ; SO 2 ; COOR 62 ; NR 56 COR58; or CONR 57 ;
  • Rei and R 6 are each independently of the other hydrogen; unsubstituted or substituted C ⁇ -d alkyl; C 2 -C ⁇ 4 alkenyl; C 5 -C ⁇ oarylene-(C ⁇ -C 10 alkyl), d- C ⁇ oalkylene(C 5 -C ⁇ oaryl), C 3 -C ⁇ 0 aryl ;
  • compounds o formula (35), wherein R 63 is methyl compounds of formula (36), wherein R 72 is hydrogen; and R 72 is in the para-postion of the phenyl moiety
  • Ri and R 2 each independently from each other are a residue of an organic dye
  • Yi and Y 2 independently from each other are C ⁇ -C ⁇ oalkylene
  • Z and Z 2 independently from each other are -C(O)-; -C 2 -C ⁇ 2 alkenylene-; -(CH CH 2 -O) ⁇ - 5 -; CrC 1 oalkylene(C 5 -C 1 oarylene); C 5 -C 10 arylene; C 5 -docycloalkylene, -C(O)O-, -OCO-; R, -N(Rg)-; — N— ; -CO (R 4 )-; -(R 5 )NC(O)-; -O- -S-; -S(O)-; or -S(O) 2 -; 4 R 3 .
  • Ri and R 5 are each independently from each other hydrogen; C -C ⁇ 4 alkyl; C 2 -C ⁇ alkenyl; C 6 -C 10 aryl; d-C 5 alkyl-C 5 -C ⁇ 0 aryl; or-C 5 -C ⁇ oC 5 -C ⁇ 0 aryl; r, q and n independently from each other are 0; or 1, if n is 0,
  • Z 3 is hydrogen; and if n is 1 , Z 3 is -S-; are novel and represent another subject of the present inventio.
  • the present invention also relates to the novel compounds of formulae (35), (36), (37) and (38).
  • Alkylene is generally CrC 10 alkylene, for example methylene, ethylene, propylene, isopropylene- n-butylene, sec-butylene, tert-butylene, n-pentylene, 2-pentylene 3-pentylene, 2,2 , -dimethylpropylene, cyclopentylene, cyclohexylene, n-hexylene, n-octylene, " ⁇ ,V,3,3'- tetramethylbutylene, 2-ethylhexylene, nonylene or decylene.
  • Alkylene may be straight-chain, branched, or, from C 5 alkyl upwards, monocyclic or polycyclic, and may be interrupted by hetero atoms, such as such as O, S, -CO-, N, NH, NR 5 ,-OCO-.
  • C C ⁇ 0 alkylene may be a resisue such as: -CH 2 CH 2 -O-CH 2 CH 2 -O-CH 2 CH 2 - or -CH 2 CH 2 -O-CH 2 CH 2 - -CH 2 CH 2 -O-CH 2 - 1 -CH 2 -O-CH 2 -- -CH 2 CH 2 -CH 2 CH 2 -O-CH 2 -CH 2 -, -CH 2 CH 2 -CH(N(CH 3 ) 2 )-CH 2 -CH 2 - J CH 2 -NH 2 - CH 2 -CH 2l or-CH 2 CH 2 -NH-CH 2 CH2-, -CH2CH 2 -NCH 3 -CH 2 CH 2 -, or -CO-CH 2 -, or -CH 2 CO-, or -CH 2 CH 2 -NHCO-CH 2
  • Arylene is generally C 6 -C ⁇ 0 arylene; for example phenyl or naphthyl;
  • Aryl-alkylene is for example C 5 -doaryl-C -d 0 alkylene, Ce-Cioaryl-Ci-C-alkylene, alkyl-arylene is for example d-C ⁇ oalkyl-C 5 -C ⁇ oarylene or C ⁇ -C 2 alkyl-C 6 -C ⁇ 0 arylene.
  • C ⁇ -Ciocycloalkylene is for example cyclopentylene, cyclohexylene, morpholylene or piperidinylene.
  • subsituents may be chosen from the following groups: hydroxyl, C r C ⁇ 6 alkyl- C 5 -C 10 aryl, d-dealkoxy, - COOH, sulfonic acid, sulfonylamino, -SR 6 o,
  • R4, R5. R54. R55 and R 6 o have the same defintion and preferences as given above.
  • C ⁇ -C ⁇ 6 alkyl is for example, methyl, ethyl, propyl, isopropyl, n-butyl, sec-butyl, tert-butyl, n-pentyl, 2-pentyl, 3-pentyl, 2,2'-dimethyIpropyl J cyclopentyl, cyclohexyl, n-hexyl, n-octyl, l.l'.S.S'-tetramethylbutyl or 2-ethylhexyl, nonyl, decyl, undecy, dodecyl, tredecyl, tetradecyl, pentadecyl or haxadecly.
  • d-C 6 alkoxy is O-C C 6 alkyI, preferably O-C ⁇ -C 4 alkyl.
  • C 5 -C ⁇ oaryl-CrC 10 alkylene is, for example, phenyl-d-C ⁇ 0 alkylene or naphthyl-Ci-Cioalkylene.
  • C 6 -d 0 aryl-CrC 2 alkylene and C ⁇ -C 2 alkyl-C 6 -C ⁇ oarylene are, for example, phenyl-C ⁇ - C ⁇ 0 alkylene or naphthyl-CrC ⁇ 0 alkylen.
  • Halide is, for example, fluoride, chloride, bromide or iodide, especially chloride and fluoride.
  • Alkalion denotes, for example, an organic or inorganic anion, such as halide, preferably chloride and fluoride, sulfate, hydrogen sulfate, phosphate, boron tetrafluoride, carbonate, bicarbonate, oxalate or d-C 8 alkyl sulfate, especially methyl sulfate or ethyl sulfate; anion also denotes lactate, formate, acetate, propionate or a complex anion, such as the zinc chloride double salt.
  • halide preferably chloride and fluoride
  • sulfate hydrogen sulfate
  • phosphate phosphate
  • boron tetrafluoride carbonate
  • oxalate d-C 8 alkyl sulfate
  • anion also denotes lactate, formate, acetate, propionate or a complex anion, such as the zinc chloride double salt.
  • the anion is especially a halide, preferably chloride or fluoride, sulfate, hydrogen sulfate, methyl sulfate, ethyl sulfate, phosphate, formate, acetate or lactate.
  • a halide preferably chloride or fluoride, sulfate, hydrogen sulfate, methyl sulfate, ethyl sulfate, phosphate, formate, acetate or lactate.
  • the anion is more especially fluoride, chloride, methyl sulfate, ethyl sulfate, formate or acetate.
  • protein disulfidisomerase (EC 5.3.4.1) is an enzyme of the enzym category EC 5.3.4.1. These enzymes preferably catalyse the ismerisation of intermolecular and intramolecular disulfid-bonds in proteinis.
  • the EC (Enzyme commission) number is provided from the " Nomenclature Committee of the International Uniion of Biochemistry and Molecular Biology" (IUBMB).
  • IUBMB Nomenclature Committee of the International Uniion of Biochemistry and Molecular Biology
  • the residue of an organic dye is substituted or unsubstituted.
  • biradical or radical of a heterocyclic compound is for example a biradical or radical of thiophenyl, 1,3-thiazolyl, 1,2-thiazolyl, 1,3-benzothiazolyl, 2,3- benzothiazolyl, imidazolyl, 1,3.4-thiadiazolyl, 1,3,5-thiadiazolyl, 1 ,3,4-triazolyl, pyrazolyl, benzimidazolyl, benzopyrazolyl, pyridinyl, quinolinyl, pyrimidinyl and isoxazolyl.
  • Preferred biradical or radical of a heterocyclic compound is for example 1,3-thiazolyl, 1,2- thiazolyl, 1,3-benzothiazolyl, 2,3-benzothiazolyl, imidazolyl, 1,3,4-thiadiazolyl, 1,3,5- thiadiazolyl, 1,3,4-triazolyl, pyrazolyl, benzimidazolyl, benzopyrazolyl, pyridinyl, quinolinyl, pyrimidinyl and isoxazolyl. More preferred cationic heterocyclic compounds are imidazolyl, pyridinyl, 1,3,4-triazolyl and 1,3-thiazolyl.
  • a biradical or radical of an aromatic compound is for example phenyl, naphthyl, thiophenyl, 1,3-thiazolyl, 1,2-thiazolyl, 1,3-benzothiazolyl, 2,3-benzothiazolyl, imidazolyl, 1 ,3,4-thiadiazolyl, 1,3,5-thiadiazolyl, 1,3,4-triazolyl, pyrazolyl, benzimidazolyl, benzopyrazolyl, pyridinyl, quinolinyl, pyrimidinyl and isoxazolyl, aminodiphenyl, aminodiphenylether or azobenzenyl.
  • the biradical or radical of a heterocyclic or aromatic compound is unsubstituted or mono- or poly-substituted, for example by d-C 4 alkyl, C ⁇ -C alkoxy, C ⁇ -C alkylthio, halogen, e.g.
  • a further emodiment of the present inveintion relates to processes for the preparation of the dyes of formula (1).
  • a preferred process for the preparation comprises reacting a compound of formula (1a) with the compound of formula (1b) according to the following reaction scheme:
  • a further preferred process for the preparation of compounds of formula (1) comprises reacting a compound of formula (1c) with the compound of formula (1d) according to the following reaction scheme:
  • Li is a leaving group
  • R L R 2 , Zi, Z 2 , Z 3 , Y I , Y 2) r, q and n are defined as in formula (1).
  • the reaction is generally initiated by contacting; for example by mixing together the starting compounds or by dropwise addition of one starting compound to the other.
  • the temperature is in the range of 273 to 300 K, preferably is in the range of 290 to 300 K during the mixing of the starting compounds.
  • the reaction time is generally dependent on the reactivity of the starting compounds, on the reaction temperature chosen and on the desired conversion.
  • the chosen duration of reaction is usually in the range from one hour to three days.
  • the reaction temperature for the reaction of the compounds is advisable to select in the range from 273 to 340K, especially in the range from 273 to 335K.
  • the reaction pressure chosen is generally in the range from 70 kPa to 10 MPa, especially from 90 kPa to 5 MPa, and is more especially atmospheric pressure.
  • the molar ratio of compound of formula (1a) to the catalyst is generally selected in the range from 10:1 to 1 :5, especially in the range from 10:1 to 1 :1.
  • Suitable catalysts are for example an alkali metal C ⁇ -C 6 alkyloxide, such as sodium-, potassium or lithium d-C 6 alkyloxide, preferably sodium methoxide, potassium methoxide or lithium methoxide, or sodium ethoxide, potassium ethoxide or lithium ethoxide; or tertiary amines, for example, such as chinuclidine, N-methylpiperidine, pyridine, trimethylamine, triethylamine, trioctylamine, 1,4-diazabicyclo[2.2.2]octan, chinuclidine, N-methylpiperidine; or alkalimetal acetate, for example such as sodium acetate, potassium acetate, or lithium acetate.
  • alkali metal C ⁇ -C 6 alkyloxide such as sodium-, potassium or lithium d-C 6 alkyloxide, preferably sodium methoxide, potassium methoxide or lithium methoxide, or sodium
  • reaction may be carried out with or without a solvent, but is preferably carried out in the presence of a solvent, preferably organic solvents or solvent mixtures.
  • Solvents are organic solvents and water, or a mixture of organic solvents or a mixture of organic solvents and water.
  • Organic solvents are for example, protic or aprotic polar organic solvents, such as alcohols, for example methanol, ethanol, n-propanol, isopropanol, butanol or glycols, especially isopropanol, or nitrile, such as acetonitrile or propionitrile, or amide, such as dimethylformamide, di- methylacetamide or N-methylpyridine, N-methylpyrolidon, or sulfoxide, such as dimethylsul- foxide, or mixtures thereof.
  • protic or aprotic polar organic solvents such as alcohols, for example methanol, ethanol, n-propanol, isopropanol, butanol or glycols, especially isopropanol, or nitrile, such as acetonitrile or propionitrile, or
  • the product prepared according to the process of the present invention may be advantageously worked up and isolated, and if desired be purified.
  • the work up starts by decreasing the temperature of the reaction mixture in the range from 280 to 300 K, especially in the range from 290 to 300 K.
  • reaction product is usually filtered and then washed with water or a salt solution and subsequently dried.
  • Filtration is normally carried out in standard filtering equipment, for example B ⁇ chner funnels, filter presses, pressurised suction filters, preferably in vacuo.
  • the temperature for the drying is dependent on the pressure applied. Drying is usually carried out in vacuo at 50-200 mbar.
  • the drying is usually carried out at a temperature in the range from 313 to 363 K, especially from 323 to 353 K, and more especially in the range from 328 to 348 K.
  • the product is purified by recrystallisation after isolation.
  • Organic solvents and solvent mixtures are suitable for the recrystallisation, preferably alcohols, for example methanol, ethanol, 2-propanol or butanol, especially 2-propanol.
  • the present invention also relates to a process for the preparation of compounds of formula
  • (70) > which comprises a. acylating of 4-fluoro-3-nitroaniIine with an acylating agent as shown in the above formula b. hen reducing the nitro group to the amino group, c. then diazotizing the acylated 4-Fluoro-3-amino-aniline, and d. then coupling the diazotized with imidazole, and e. then alk lating the intermediate compound with an alkylating agent; or ai) diazotizing and coupling of a compound of formula, and then
  • R 68 is hydrogen, unsubstituted or substituted C C ⁇ 4 alkyl, C 2 -d 4 alkenyl, -C 5 -C ⁇ oarylen-(d- Cioalkyl), C 5 -C ⁇ 0 aryl,
  • acylation, reduction, diazotation, coupling and alkylation can be conducted by methods known per se.
  • the dyes of formula (1) according to the invention are suitable for dyeing organic materials, such as keratin-containing fibers, wool, leather, silk, cellulose or polyamides, cotton or nylon, and preferably human hair.
  • the dyeings obtained are distinguished by their depth of shade and their good fastness properties to washing, such as, for example, fastness to light, shampooing and rubbing.
  • the stability, in particular the storage stability of the dyes according to the invention sre excellent.
  • the multiplicity of shades of the dyes can be increased by combination with other dyes.
  • the dyes of formula (1 ) of the present invention may be combined with dyes of the same or other classes of dyes, especially with direct dyes, oxidation dyes; dye precursor combinations of a coupler compound as well as a diazotized compound, or a capped diazotized compound; and/or cationic reactive dyes.
  • Direct dyes are of natural origin or may be prepared synthetically. They are uncharged, cationic or anionic, such as acid dyes.
  • the dyes of formula (1) may be used in combination with at least one single direct dye different from the dyes of formula (1).
  • cationic nitroaniline and anthraquinone dyes are useful for a combination with a dye of formula (1).
  • the dyes of formula (1 ) may also be combined with acid dyes, for example the dyes which are known from the international names (Color index), or trade names.
  • These acid dyes may be used either as single component or in any combination thereof.
  • the dyes of formula (1) may also be combined with uncharged dyes, for example selected from the group of the nitroanilines, nitrophenylenediamines, nitroaminophenols. anthra- quinones, indophenols, phenazines, phenothiazines, bispyrazolons, bispyrazol aza derivatives and methines.
  • uncharged dyes for example selected from the group of the nitroanilines, nitrophenylenediamines, nitroaminophenols. anthra- quinones, indophenols, phenazines, phenothiazines, bispyrazolons, bispyrazol aza derivatives and methines.
  • the dyes of formula (1) may also be used in combination with oxidation dye systems.
  • Oxidation dyes which, in the initial state, are not dyes but dye precursors are classified according to their chemical properties into developer and coupler compounds. Suitable oxidation dyes are descri ed for example in
  • Preferred developer compounds are for example primary aromatic amines, which are substituted in the para- or ortho- position with a substituted or unsubstituted hydroxy- or amino residue, or diaminopyridine derivatives, heterocyclic hydrazones, 4-aminopyrazol derivatives or 2,4,5,6-tetraaminopyrimidine derivatives.
  • developer compounds in their physiological compatible acid addition salt form such as hydrochloride or sulfate can be used.
  • Developer compounds, which have aromatic OH radicals are also suitable in their salt form together with a base, such as alkali metal- phenolates.
  • Preferred developer compounds are disclosed in DE 19959479, p. 2, 1. 8 - 29.
  • Preferred coupler compounds are m-phenylendiamine derivatives, naphthole, resorcine and resorcine derivatives, pyrazolone and m-aminophenol derivatives, and most preferably the coupler compounds disclosed in DE 19959479, p.1, 1. 33 to p. 3, 1. 11.
  • autooxidizable compounds may be used in combination with the dyes of formula (1 ).
  • Autooxidizable compounds are aromatic compounds with more than two substituents in the aomatic ring, which have a very low redox potential and will therefore be oxidized when exposed to the air.
  • the dyeings obtained with these compounds are very stable and resistant to schampoo.
  • Autooxidizable compounds are for example benzene, indol, or indol, especially 5,6- dihydroxyindol or 5,6-dihydroxyindol.
  • the dyes of formula (1) may also be used in combination with naturally occurring dyes, such ashenna red, henna neutral, henna black, camomile blossom, sandalwood, black tea, Rhamnus frangula bark, sage, campeche wood, madder root, catechu, sedre and alkanet root.
  • the dyes of formula (1) may also be used in combination with capped diazotised compounds.
  • Suitable diazotised compounds are for example the compounds of formulae (1) - (4) in WO 2004/019897 (bridging gages 1 and 2) and the corresponding watersoluble coupling components (I) -(IV) as disclosed in the same reference on p. 3 to
  • DC-01 WO 95/01772, wherein mixtures of at least two cationic dyes are disclosed, especially p. 2, 1. 7 to p. 4, 1. 1, preferably p.4, 1. 35 to p. 8, 1. 21 ; formulations p. 11, last ⁇ - p. 28, 1. 19;
  • DC-02 US 6,843,256, wherein cationic dyes are disclosed, especially the compounds of formulae (1), (2), (3) and (4) (col. 1, 1. 27 - col. 3, 1. 20, and preferably the compounds as prepared in the examples 1 to 4 (col. 10, 1.42 to col. 13, 1.37; formulations col. 13, 1. 38 to col. 15, 1. 8;
  • DC-03 EP 970685, wherein direct dyes are described, especially p.
  • (DC-08): FR-2788432 wherein combinations of cationic dyes with Arianors are disclosed, especially p. 53, 1. 1 to p. 63, 1. 23, more especially p . 51 to 52, most especially Basic Brown 17, Basic brown 16, Basic Red 76 and Basic Red 118, and/or at least one Basic Yellow 57, and/or at least one Basic Blue 99; or com binations of arianoren and/or oxidative dyes, especially p. 2, 1. 16 to p. 3, 1. 16; dyeing formulations on p. 53, 1. 1 to p.63, 1. 23;
  • DC-09 DE-A-19713 698, wherein the combinations of direct dyes and permanent-wave fixing comprising an oxidation agent, an oxidation dye and a direct dye are disclosed; especially p.4, 1. 65 to p. 5, 1. 59;
  • DC-10 EP 850638, wherein developer compounds and oxidizing agents are disclosed; especially p. 2, 1. 27 to p. 7, 1. 46 and preferably p. 7, I. 20 to p. 9, 1. 26; dyeing formulations p. 2, 1. 3-12 and I. 30 to p. 14, and p.28, 1. 35 - p. 30, 1. 20; preferably p. 30, I. 25 - p. 32, 1. 30;
  • DC-11 US 6,190,421 wherein extemporaneous mixtures of a composition (A) containing one or more oxidation dye precursors and optionally one or more couplers, of a composition (B), in powder form, containing one or more direct dyes (col.5, 1. 40 - col. 7, 1. 14), optionally dispersed in an organic pulverulent excipient and/or a mineral pulverulent excipient, and a composition (C) contain! ng one or more oxidizing agents are disclosed; formulations col. 8, 1. 60 - col. 9, 1. 56;
  • DC-12 US 6,228,129, wherein a ready-to-use composition comprising at least one oxidation base, at least one cationic direct dye and at least one enzyme of the 2-electron oxidoreductase type in the presence of at least one donor for the said enzyme are disclosed; especially col. 8, 1. 17 - col. 13, 1. 65; dyei ng formulations in col. 2, 1. 16 to col. 25, 1. 55, a multi-compartment dyeing device is described in col. 26, 1. 13 - 24;
  • DC-13 WO 99/20235, wherein compositions of at least one cationic dye and at least one nitrated benzene dye with cationic direct dyes and nitro benzene direct dyes are described; on p. 2, 1. 1 to p. 7, 1. 9, and p. 39, 1. 1 to p. 40 1. 11, preferably p. 8, 1. 12 to p. 25 I. 6, p. 26, 1. 7 to p. 30, 1. 15; p. 1, 1. 25 to p. 8, 1. 5 3 p. 30, 1. 17 to p. 34 I. 25, p. 8, 1. 12 to p. 25 I. 6, p. 35, 1. 21 to 27, especially on p. 36, 1. 1 to p. 37;
  • DC-14 WO 99/20234, wherein compositions comprising at least one direct cationic dye and at least one autooxidisable dye, especially benzene, indol and indol. derivatives are described, preferably direct dyes on p. 2, 1. 19 to p.26, 1.4, and autooxidisable dyes as dislosed especially on p.26, 1. 10 to p. 28, 1. 15; dyeing formulations especially on p. 34, I. 5 to p. 35, li 18; (DC-15): EP 850636, wherein oxidation dyeing compositions comprising at least one direct dye and at least one meta-aminophenol derivative as coupler component and at least one developer compound and an oxidizing agent are disclosed, especially p. 5, 1.41 to p. 7, 1. 52, dyeing formulations p. 19, 1. 50 - p. 22, 1. 12;
  • oxidation dyeing compositions comprising at least one oxidation base selected from para-phenylenediamines and bis(phenyl)alkylenediamines, and the acid-addition salts thereof, at least one coupler selected from meta-diphenols, and the acid-addition salts thereof, at least one cationic direct dye, and at least one oxidizing agent are disclosed, especially p. 6, 1.50 to p.8, 1.44 are discloseded; dyeing formulations p. 21, 1. 30 - p. 22, 1. 57;
  • the dyes of formula (1) according to the present invention may be added to the dye combinations or dyeing formulations or may be replaced with at least one dye of formula (1).
  • the present invention also releates to formulations, which are used for the dyeing of organic materials, preferably keratin-containing fibers, and most preferably human hair, comprising at least one dye of formula (1).
  • the dyes of formula (1) are incorporated into the composition for treating organic material, preferably for dyeing in amounts of 0.001 - 5% b.w. (hereinafter indicated merely by "%"), particularly 0.005 - 4%, more particularly 0.2 - 3%, based on the total weight of the composition.
  • the formulations may be applied on the keratin-containing fiber, preferably the human hair in different technical forms.
  • Technical forms of formulations are for example a solution, especially a thickened aqueous or aqueous alcoholic solution, a cream, foam, shampoo, powder, gel, or emulsion.
  • Customary the dyeing compositions are applied to the keratin-containing fiber in an amount of 50 to 100 g.
  • formulations are ready-to-use compositions or multi-compartment dyeing devices or 'kits' or any of the multi-compartment packaging systems with compartments as described for example in US 6,190,421, col 2, 1. 16 to 31.
  • the pH value of the ready-to-use dyeing compositions is usually from 2 to 11 , preferably from 5 to 10.
  • One preferred embodiment of the present invention relates to the formulation of dyes, wherein the dyes of formula (1) are in powder form.
  • Powder formulations are preferably used if stability and/or solubility problems as for example described in DE 197 13698, p. 2, 1.26 to 54 and p. 3, 1. 51 to p.4, 1. 25, and p. 4, 1.41 to p. 5 I. 59.
  • Suitable cosmetic hair-care formulations are hair-treatment preparations, e.g. hair-washing preparations in the form of shampoos and conditioners, hair-care preparations, e.g. pre- treatment preparations or leave-on products such as sprays, creams, Qels, lotions, mousses and oils, hair tonics, styling creams, styling gels, pomades, hair rinses, treatment packs, intensive hair treatments, hair-structuring preparations, e.g. hair-waving preparations for permanent waves (hot wave, mild wave, cold wave), hair-straightening preparations, liquid hair- setting preparations, hair foams, hairsprays, bleaching preparations, e.g.
  • hair-treatment preparations e.g. hair-washing preparations in the form of shampoos and conditioners
  • hair-care preparations e.g. pre- treatment preparations or leave-on products such as sprays, creams, Qels, lotions, mousses and oils, hair tonics, styling creams, styling gels, po
  • the dyeing compositions of the present invention can usually be incorporated into an aqueous cosmetic carrier.
  • Suitable aqueous cosmetic carriers include, for example W/O, O/W, O/W/O, W/O/W or PIT emulsions and all kinds of microemulsions-, creams, sprays, emulsions, gels, powders and also surfactant-containing foaming solutions, e.g. shampoos or other preparations, that are suitable for use on keratin-containing fibers.
  • surfactant-containing foaming solutions e.g. shampoos or other preparations
  • Such forms of use are described in detail in Research Disclosure 42448 (August 1999).
  • the dyei ng compositions according to the invention are also excellently suitable for the dyeing method described in DE-A-3 829870 using a dyeing comb or
  • the constituents of the aqueous carrier are present in the dyeing compositions of the present invention in the customary amounts, for example emulsifiers may be present in the dyeing compositions in concentrations of from 0.5 to 30 % b.w. and thickeners in concentrations ef from 0.1 to 25 % b.w. of the total dyeing composition.
  • the dyes of formula (1) may be stored in a liquid to paste-like preparation (aqueous or non- aqueous) or in the form of a dry powder.
  • the preparation should be substantially anhydrous in order to reduce reaction of the compounds.
  • the dyeing compositions according to the invention may comprise any active ingredients für additives or adjuvants known for such preparations, like surfactants, solvents, bases, acids, perfumes, polymeric adjuvants, thickeners and light stabilisers.
  • non-ionic polymers non-ionic polymers
  • cationic polymers acrylamide/dimethyldiallylammonium chloride copolymers
  • quaternised polyvinyl alcohol quaternised polyvinyl alcohol, zwitterionic and amphoteric polymers .
  • anionic polymers thickeners, structuring agents, hair-conditioning compounds, protein hydrolysates, perfume oils, dimethyl isosorbitol and cyclodextrins, solubilisers, anti-dandruff active ingredients, substances for adjusting the pH value; panthenol, pantothenic acid, allantoin, pyrrolidonecarboxylic acids and salts thereof, plant extracts and vitamins; cholesterol; light stabilisers and UV absorbers, consistency regulators, fats and waxes, fatty alkanolamides, polyethylene glycols and polypropylene glycols, complexing agents, swelling and penetration substances, opacifiers, such as latex; pearlising agents, propellants, antioxidants; sugar-containing polymers,quatemary ammonium salts, or bacteria inhibiting agents,.
  • the dyeing compositions according to the present invention generally comprise at least one surfactant.
  • Suitable surfactants are zwitterionic or ampholytic, or more preferably anionic, non-ionic and/or cationic surfactants.
  • Suitable anionic surfactants are characterised by an anionic group that imparts water solubility, for example a carboxylate, sulfate, sulfonate or phosphate group, and a lipophilic alkyl group having approximately 10 to 22 carbon atoms.
  • anionic group that imparts water solubility for example a carboxylate, sulfate, sulfonate or phosphate group, and a lipophilic alkyl group having approximately 10 to 22 carbon atoms.
  • glycol or polyglycol ether groups, ester, ether and amide groups and also hydroxy groups may be present in t-he molecule.
  • Preferred anionic surfactants are alkyl sulfates, alkyl polyglycol ether sulfates and ether carboxylic acids having 10 to 18 carbon atoms in the alkyl group and up to 12 glycol ether groups in the molecule, and also especially salts of saturated and especially unsaturated C 8 -C 22 carboxylic acids, such as oleic acid, stearic acid, isostearic acid and palmitic acid.
  • nee is given the so-called betaines, such as the N-alkylN.N-dimethylammonium glycinates, for example cocoalkyldimethylammonium glycinate, N-acylaminopropyl-N,N-dimethylammonium glycinates, for example cocoacylaminopropyldimethylammonium glycinate, and 2-alkyl-3- carboxymethyl-3-hydroxyethylimidazol.
  • betaines such as the N-alkylN.N-dimethylammonium glycinates, for example cocoalkyldimethylammonium glycinate, N-acylaminopropyl-N,N-dimethylammonium glycinates, for example cocoacylaminopropyldimethylammonium glycinate, and 2-alkyl-3- carboxymethyl-3-hydroxyethylimidazol.
  • a preferred zwitterionic surfactant is the fatty acid amide derivative known by the CTFA name cocoamidopropyl betaine.
  • Ampholytic surfactants are surface-active compounds that, in addition to a C 8 -C ⁇ 8 -alkyl or - acyl group and contain at least one free amino group and at least one -COOH or -SO 3 H group in the molecule and are capable of forming internal salts.
  • ampholytic surfactants include N-alkylglycines, N-alkylpropionic acids, N-alkylaminobutyric acids, N-alkyliminodipropionic acids, N-hydroxyethyl-N-alkylamidopropylglycines, N-alkyltaurines, N-alkylsarcosines, 2-alkylaminopropionic acids and alkylaminoacetic acids, each having approximately from 8 to 18 carbon atoms in the alkyl group.
  • Ampholytic surfactants to which special preference is given are N-cocoalkylaminopropionate, cocoacylaminoethylaminopropionate and C 2 -C ⁇ 8 acylsarcosine.
  • Non-ionic surfactants are described in WO 00/10519, especially p.45, 1. 11 to p. 50, I. 12.
  • Non-ionic surfactants contain as hydrophilic group, for example, a polyol group, a polyalkylene glycol ether group or a combination of polyol and polyglycol ether groups.
  • Examples of cationic surfactants that can be used in the dyeing compositions according to the invention are especially quaternary ammonium compounds.
  • Alkylamidoamines, especially fatty acid amidoamines, such as the stearylamidopropyl- dimethylamine obtainable under the name Tego Amid ® 18 are alos proffered as surfactants in the present dyeing compositions. They are distinguished not only by a good conditioning action but also especially by their good biodegradability.
  • a further preferred embodiment of the present invention relates to a method of treating keratin-containig fibers with sulfide dyes of formula (1).
  • the method comprises treating the hair in the presence of a reduction agent.
  • Preferred reduction agents are for example thioglycol acid or salts therof, gycerine monothioglycolat, cystein, 2-mercaptopropionic acid, 2-mercaptoethylamine, thiolactic acid, thioglycerine, sodium sulfite, dithionithe, ammonium sulfite, sodium bisulfite, sodium metabisulfite or hydrochinon.
  • the present invention relates to a method of a. treating the keratin-containing fibers with a compound of formula (1 ), b. wearing the coloured hair for the desired period of time, c. removing the colour applied in step a) from hair by contacting the hair with an aqueous based colour removal composition containg a reduction agent capable of disrupting the - S-S-bonds between the dye molecule and the hair fiber surface to cause the dye molcule to become disassociated from the hair fiber.
  • the present invention concerns a process, comprising treating the hair with a. a reduction agent, and b. at least a single sulfide dye of formula (1 ) as defined above, and optionally c. with an oxidizing agent.
  • the sequence of the reaction steps is generally not important, the reduction agent can be applied first or in a final step.
  • Preferred is a process, which comprises treating the hair a ) with at least one single dye of formula (1 ), and bi) then with a reduction agent; or a process, which comprises contacting hair a 2 ) with a reduction agent and b 2 ) then with at least one single sulfide dye of formula (1) as defined above.
  • a process which comprises contacting hair a) with a reduction agent, b) then with at least one dye of formula (1), and c) then with an oxidizing agent.
  • a further process of the present invention comprises contacting hair a) with at least one single dye of formula (1), and b) then with a reduction agent, and c) then with an oxidizing agent.
  • the oxidizing agent is applied together with an acid or a base.
  • the acid is for example citric acid, phosphoric acid or tartrate acid.
  • the base is for example sodium hydroxide, ammonia or monoethanolamine.
  • the dyeing compositions are applied to the keratin-containg fiber in an amount of from 50 to 100 g.
  • the dyes of formula (1) are suitable for all-over dyeing of the hair, that is to say when dyeing the hair on a first occasion, and also for re-dyeing subsequently, or dyeing of locks or parts of the hair.
  • the dyes of formula (1 ) are applied to on the hair for example by massage with the hand, a comb, a brush, or a bottle, or a bottle, which is combined with a comb or a nozzle.
  • a process for dyeing keratin-containing fibers which comprises treating the keratin-containing fiber with at least one dye of formula (1 ), a base and an oxidizing agent.
  • the oxidation dyeing process usually involves lightening, that is to say that it involves applying to the keratin-containing fibers, at basic pH, a mixture of bases and aqueous hydrogen peroxide solution, leaving the applied mixture to stand on the hair and then rinsing the hair. It allows, particularly in the case of hair dyeing, the melanin to be lightened and the hair to be dyed.
  • the oxidizing agent containing composition is left on the fiber for 0 to 15 minutes, in particular for 0 to 5 minutes at 15 to 45°C, usually in amounts of 30 to 200 g.
  • Oxidizing agents are for example persulfate or dilute hydrogen peroxide solutions, hydrogen peroxide emulsions or hydrogen peroxide gels, alkal. earth metal peroxides, organic peroxides, such as urea peroxides, melamine peroxides, or alkalimetalbromat fixations are also applicable if a shading powder on the basis of semi-permanent, direct hair dyes is used.
  • Most preferred oxidizing agent is hydrogen peroxide, preferably used in a concentration from about 2 to 30 %, more preferably about 3 to 20% by, and most preferably from 6 to 12% b.w. the corresponding composition.
  • the oxidizing agents may be present in the dyeing compositions according to the invention preferably in an amount from 0.01 % to 6 %, especially from 0.01 % to 1 %, based on the total dyeing composition.
  • the dyeing with an oxidative agent is carried out in the presence of a base, for example ammonia, alkali metal carbonates, earth metal (potassium or lithium) carbonates, alkanol amines, such as mono-, di- or triethanolamine, alkali metal (sodium) hydroxides, earth metal hydroxides or compounds of the formula
  • R is a propylene residue, which may be substituted with OH or d-C alkyl,
  • R 3 , R ⁇ R 5 and R 6 are independently or dependently from each other hydrogen, d-C alkyl or hydroxy-(C ⁇ -C )al kyl .
  • the pH-value of the oxidizing agent containing composition is usually about 2 to 7, and in particular about 2 to 5.
  • One preferred method of applying formulations comprising the dyes of formula (1) on the keratin-containing fiber, preferably the hair is by using a multi-compartment dyeing device or "kit” or any other multi-compartment packaging system, as described for example in WO 97/20545 on p. 4, 1. 19 to I. 27.
  • the present invention relates to a process of dyeing of keratin-containig fibers of the dyes of formula (1) with autooxidable compounds and optionally further dyes.
  • the present invention relates to a process for dyeing keratin-containig fibers with the dyes of formula (1) and at least one acid dye.
  • the following Examples serve to illustrate the processes for dyeing without limiting the processes thereto. Unless specified otherwise, parts and percentages relate to weight. The amounts of dye specified are relative to the material being coloured. T, s, d, q and J, wherein t is a triplett, s is singulett, d is duplett, q is a quartett, and J is a coupling constant, define the NMRspectra values.
  • the obtained diazo solution is dropped to a 273 K cold solution of 7.4 g imidazole in 30 ml water, whereby the pH of the solution is maintained in the range of pH 10 to 11 by adding 36% of asodium hydroxide solution.
  • the obtained suspension is warmed up to 295 K, the pH is adjusted to 10.5 with 36% sodium hydroxide solution.
  • the suspension is filtered off and washed twice with 50 ml water to obtain 55 g of a humid product, which is suspended in 200 ml water and 3 weight equivalents dimethyl sulfate and sodium hydroxide are simultaneously added for maintaining the pH at 10-10.3 and the temperature at 298-303K.
  • reaction is allowed to stand for one more hour to finish the hydrolysis of excess of dimethyl sulfate.
  • the obtained diazo solution is dropped to a 273 K cold solution of 7.4 g imidazole in 30 ml water, whereby the pH of the solution is maintained in the range of pH 10 to 11 by adding 36% sodium hydroxide solution.
  • the obtained suspension is warmed up to 295 K and the pH is adjusted to 10.5 with 36% sodium hydroxide solution.
  • the suspension is filtered off and then washed twice with 50 ml water to obtain 55 g of the humid product, which is suspended in 500 ml water.
  • 0.3 mol dimethyl sulfate and sodium hydroxide are simoultaniously added for maintaining the pH in the range of 10-10.3 and the temperature at 298-3O3K.
  • the reaction mixture is hold for one hour. Then the water is evaporated. About 40 g humid solid, which gives 27 g of dryed product of the formula
  • 11g cisteamin chlorohydrate are added to 27g of compound of formula (102a) in 20 g triethylamine and 120g isopropanol under nitrogen atmosphere at 293 K, .
  • the temperature is raised to 333 K.
  • the reaction mixture is stirred for 28 hours at this temperature.
  • the reaction mass is stirred for 4 hours while the temperature is decreased to 295 K.
  • the reaction mass is filtered off and the filter residue washed with 45 ml isopropanol and dried in vacuum to obtain 17.6 g of product f formula (102).
  • the reaction mixture is stirred for further 3 hours.
  • the hot mass is separated through filtration the residue washed with 100 ml ethanol.
  • the filtrate and wash solution are cooled to 380 K with mixing, when cristallization of the product takes place.
  • the product is separated by filtration, washed with cold ethanol and dryed in a vacuum dryer.
  • the dried material is dissolved in 132 ml water and 110 ml of 32% hydrochloric acid at 295 K.
  • the reaction mixture is cooled to 273 K and 86.4 g 36% sodium nitrite solution are dropped at such a rate that the temperature of the mixture is maintained in the range of 273 to 276 K.
  • the mixture is further stirred for one hour. If no excess of nitrite is detected during one hour (detection by using a potassium iodide/starch paper) further amounts of sodium nitrite solution are added. After this one hour the remaining excess of nitrite is destroyed with sulfamic acid.
  • the obtained diazo solution is dropped to a 273 K cold solution of 33.4 g imidazole in 130 ml water, whereby the pH of the solution is maintained in the range of pH 10 to 11 by adding 36% of a sodium hydroxide solution.
  • the obtained suspension is warmed up to 295 K and the pH is adjusted to 10.5 with 36% sodium hydroxide solution.
  • the suspension is filtered off and then washed twice with 100 ml water to obtain 200 g of the humid product.
  • the filtercake from the previouse step is suspended in water and 3 weight equivalents dimethylsulfate and sodium hydroxide are simultaniously added for maintaining the pH in the range of 10-10.3 and the temperature at 300 K.
  • the reaction mixture is hold for one more hour to finish the hydrolysis of excess of dimethylsulfate.
  • the suspension is separated by filtration.
  • About 240 g of a humid solid which gives 140 g dryed product of formula
  • the acetyl derivative is solved in 520 ml ethanol and continuously added to 130 g iron in 35 ml concentrated chlorhidric acid and 220 ml water at 363K during 1 hour. The temperature drops to 353 K. The reaction mixture is stirred for further 3 hours. The hot mass is separated through filtration, the residuu washed with 100 ml ethanol. The filtrate and wash solution is cooled to 380 K with mixing, when cristallization of the product takes place. The product is separated by filtration, washed with cold ethanol and dryed in a vacuum dryer.
  • the dried material is dissolved in 132 ml water and 110 ml of 32% hydrochloric acid at 295 K. Then the reaction mixture is cooled to 273 K and 86.4 g 36% sodium nitrite solution is dropped at such a rate that the temperature of the mixture is maintained in the range of 273 to 276 K. After the addition of the sodium nitrite solution, the mixture is stirred for one hour. If no excess of nitrite is detected during one hour (detection by using a potassium iodide/starch paper), further amounts of sodium nitrite solution is added. After this one hour the remaining excess of nitrite is destroyed with sulfamic acid.
  • the obtained diazo solution is dropped to a 273 K cold solution of 33.4 g imidazole in 130 ml water, whereby the pH of the solution is maintained in the range of pH 10 to 11 by adding 36% sodium hydroxide solution.
  • the obtained suspension is warmed up to 295 K, the pH is adjusted to 10.5 with 36% sodium hydroxide solution. After one hour stirring at this pH and temperature, the suspension is filtrated and then washed twice with 100 ml water to obtain 200 g of the humid product
  • the filtercake from the previouse step is suspended in water and 3 weight equivalents dimethylsulphate and sodium hydroxide simoultaniously added for maintaining the pH in the range of 10-10.3 and the temperature at 300 K. Then, the reaction mixture is hold for one more hour, to finish the hydrolysis of excess of dimethylsulphate. Then, the suspension is separated by filtration. About 240 g humid solid, which gives 140 g dryed product of formula
  • the reaction mixture is stirred for further 3 hours.
  • the hot mass is separated through filtration, the residue washed with 100 ml ethanol.
  • the filtrate and wash solution are cooled to 380 K with mixing when cristalliziation of the product takes place.
  • the product is separated by filtration, washed with cold ethanol and dryed in a vacuum dryer.
  • the dried material is dissolved in 132 ml water and 1 10 ml of 32% hydrochloric acid at 295 K.
  • the reaction mixture is cooled to 273 K and 86.4 g of a 36% sodium nitrite solution are dropped at such a rate that the temperature of the mixture is maintained in the range of 273 to 276 K.
  • the mixture is stirred for one hour.
  • Alkylating agent A mixture of 15.4 g of 2.2-dithiodiethanol in 100 ml chloroform and 24.1 g pyridine are cooled with stirring at 273K and then 41 .0 g of tosyl chloride are added in small amounts, maintaining the temperature. After completion of the addition the mixture is left over night in the refrigerator. The reaction mixture is mixed with a water/hydrochloric acid/ice slurry. The phases are separated, washed with water and dried. The obtained solution of toluenesulfonate diester is used in the 3. step.
  • the pH of the solution is raised to the range of 5 to 6 by adding 36% sodium hydroxide solution. After one hour stirring at this pH and temperature the suspension is filtered off and then washed twice with 50 ml -water to obtain 155 g of the humid product. After drying 100 monoazo dye is obtained.
  • Alkylating agent A mixture of 15.4 g of 2,2-dithiodiethanol in 100 ml chloroform and 24,1 g pyridine are cooled with stirring to 273 K and then 41.0 g of tosyl chloride are added in small amounts maintaining the temperature.
  • Alkylating agent A mixture of 21.4 g of 2.2-dithiodiethanol in 100 ml chloroform and 24.1 g pyridine are cooled with stirring to 273K and then 41.0 g of mesyl anhydride are added in small amounts under constant temperature.
  • Alkylating agent A mixture of 15.4 g of 2.2-dithiodiethanol in 100 ml chloroform and 24.1 g pyridine are cooled with stirring to 273K and then 41.0 g of tosyl chloride are added in small amounts under constant temperature.
  • Alkylating agent A solution of 22.5 g of cisteamine dichlorohydrate in water and 31.4 g bromoacetic chloride are cooled with stirring to 273K and then the pH is kept constant by adding NaOH solution in small amounts under constant temperature. After completion of the addition the mixture is left over night in the refrigerator. The mixture has two phases, which are separated, washed with water and dried. 3. Alkylation: The foregoing hydrazone is dissolved in methanol by stirring with the dibromide solution. The temperature is raised to 60°C and maintained at 60°C during the following 24 hours. The crystals separated in the slurry are filtrated. The product is washed with 50 ml of methanol and dried in vacuum to obtain 49 g of an orange solid product. The product is recristallized twice from methanol.
  • Alkylating agent A mixture of 15.4 g of 2.2-dithiodiethanol in 100 ml chloroform and 24,1 g pyridine is cooled with stirring to 273K and then 41.0 g of tosyl chloride are added in small amounts under constant temperature. After completion of the addition the mixture is left over night in the refrigerator. The reaction mixture is mixed with a water/chlorhidric acid/ice slurry, the phases are separated, washed with water and dried. The obtained solution of methane- benzene-sulfonate diester is used in the following step 3.Alkylation: Stirring into the diester solution in chloroform dissolves two equivalents of the foregoing monoazo.
  • the temperature is raised to 333K and maintained at 333K during the following 20 hours. Crystals separated in the slurry are filtrated. The product is washed with 50 ml of chloroform and dried in vacuum to obtain 80 g of a dark solid product, which is recristallized twice from methanol.
  • the compound of formula (104a) (prepared in example A 4) is reacted with N.N-dimethyl- ethylendiamine according to the method as described in Example A14.
  • the same alkylating agent is used and the compound of formula (116) is obtained.
  • Example B Application Examples: The washing fastness of the dyed hair is analyzed by the Grey scale according to Industrial organic pigments by Herbst&Hunger, 2nd ed. engl. S. 61) Nr 10: DIN 54001-8-1982,whoHer- wolf undenne der Ae precise der91", ISO 105-A02-1993. ln the following application examples compositions with definitions the below given are used:
  • Solution (1) (permanent lotion, pH 8.2): Aqua, Ammonium Thioglycolate, Ammonium Bicarbonate, Ethoxydiglycol, Hexylene Glycol, ThioglycolicAcid; Thiolactic Acid, PEG-60 Hydrogenated Castor Oil, Glycine, Etidronic Acid, lsoceteth-20, Polysilicone-9, Styrene/PVP Copolymer, Trideceth-12, Amodimethicone, Cetrimonium Chloride, Ammonium Hydroxide, Polyquaternium-6, Isopropyl Alcohol, Alcohol denat., Simethicone, perfume
  • Solution (2) (permanent fixation, pH 3.9): Based on: Aqua, Hydrogen Peroxide, Propylene Glycol, Lauryldimonium Hydroxypropyl Hydrolyzed Wheat Protein, PEG-5 Cocamide, Sodium Cocoamphoacetate, Polyquaternium-35, Coco-Betaine, Acetaminophen, Phosphoric Acid, Sodium Chloride, perfume
  • Solution (3) (dyeing solution): 0.1 % of the dye is dissolved in a 10 % solution of a non-ionic surfactant (Plantacare 200UP, Henkel) adjusted to pH 9.5 using citric acid or monoethanol- amine.
  • a non-ionic surfactant Plantacare 200UP, Henkel
  • Solution (4) (permanent lotion, pH 8.7): Aqua, Thioglycolic Acid, Ammonium Bicarbonate, Ammonium Hydroxide, PEG-60 Hydrogenated Castor Oil, Sericin, Polyquatemium 22, Lauryldimmonium Hydroxypropyl Hydrolyzed Keratin, Hydroxyethyl Cetyldimonium Phosphate, Sodium Cocoamphopropionate, perfume/Fragance, Styrene/PVP Copolymer, Pantasodium Pentetate, Ascorbic Acid, Benzyl Salicilate, Hydroxyisohexyl 3-Cyclohexene Carboxaldehyde, Hexyl Cinnamal, Butylphenyl Methylprpional, Linalool.
  • Solution (5) (permanent fixation, pH 2.9): Based on: Aqua, Hydrogen Peroxide, Hydroxycetyl Hydroxyethyl Dimonium Chloride, Tetrasodium Etidronate, PEG-40 hydrogenated Castor Oil, Salicylic Acid, Tetrasodium EDTA, Styrene/PVP Copolymer, Sericin, Salicylic Acid, Tetrasodium EDTA, Styrene/PVP Copolymer, Sericin, Salicylic Acid, Tetrasodium EDTA, Styrene/PVP Copolymer, Sericin, Salicylic Acid, Tetrasodium EDTA, Styrene/PVP Copolymer, Sericin, Salicylic Acid, Tetrasodium EDTA, Styrene/PVP Copolymer, Sericin, Salicylic Acid, Tetrasodium EDTA, Styrene/PVP Copolymer, Sericin, Salicylic Acid, Tetrasodium
  • Placebo colouring material Obtained by adding 11 ml ammonia solution (25% b.w.) at 343K to a composition consisiting of ammonium chloride 0.5% b.w., tetrasodium EDTA, 0.2% b.w., silica 0.1% b.w., water, add100% b.w..
  • the obtained mixture is added to a composition consisting of cetearyl alcohol, 11% b.w., oleth-5, 5% b.w., oleic acid, 2.5% b.w., stearamide MEA, 2.5% b.w., cocoamide MEA, 2.5% b.w., propylene glycol 1.0% b.w..
  • Colouration composition of a placebo The colouration composition of a placebo is obtained by adding 11 ml ammonia solution (25% b.w.) at 343K to a composition consisiting of ammonium chloride 0.5% b.w., tetrasodium EDTA, 0.2% b.w., silica 0.1% b.w., water, add100% b.w. and 0.2% b.w.
  • a tress of human hair, bleached white, is shampooed. Then, the towel dried hair tress is put on the glass plate.
  • Solution (1) is applied to the wet hair tress. After 10 min the hair tress is rinsed under tap water and pressed out with a paper towel. Afterwards the tress is treated with a solution 3 containing the dye of formula (101) (Example A1) for 20 min and then rinsed with water. Then solution (2) is applied to the towel dried hair tress. After 10 minutes the hair tress is rinsed under tap water again and dried. The tress is very intensive red with a very good wash fastness.
  • a tress of blonde undamaged human hair is shampooed. Then the towel dried hair tress is put on the glass plate.
  • the solution (1) (permanent solution) is applied to the wet hair tress. After 10 min the hair tress is rinsed under tap water and pressed out with a paper towel. Afterwards the tress is treated with a solution 3 containing the dye from Example A2 for 20 min and then rinsed with water. Then solution (2) (permanent fixation) is applied to the towel dried hair tress. After 10 min. the hair tress is rinsed under tap water again and dried. The tress is very intensive violet with a very good wash fastness.
  • solution (1) permanent lotion having a pH 8.2, which is mixed with a weight equivalent water to give a pH of 8.00 is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 10 min. Then the strands are rinsed
  • a solution 1 (permanent lotion) having a pH 8.2 is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 10 min. Then, the strands are rinsed under tap water, and the towel dry strands are treated with a colouring material solution consisting of a. compound of formula (101) according to example A1 , 0.2%, b.w. solution in plantaren, and b. a watery hydrogene peroxid solution, 6% b.w., which are mixed together in a weight ratio of 1:1, and then applied on the hair and allowed to stand for 30 min, and then, rinsed and then shampooed, and afterwards dried for 12 hours at room temperature.
  • a colouring material solution consisting of a. compound of formula (101) according to example A1 , 0.2%, b.w. solution in plantaren, and b. a watery hydrogene peroxid solution, 6% b.w.
  • Solution 1 (permanent lotion; pH 8.2) is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 10 min. Then the strands are rinsed under tap water and the towel dry strands treated with a colouring material solution consisting of a. compound of formula (101) according to example A1 , 0.2%, b.w. solution in plantaren, and b. placebo colouring material, which are mixed together in a weight ratio of 1 :1 , and then applied on the hair and allowed to stand for 30 min. and then rinsed.
  • a colouring material solution consisting of a. compound of formula (101) according to example A1 , 0.2%, b.w. solution in plantaren, and b. placebo colouring material, which are mixed together in a weight ratio of 1 :1 , and then applied on the hair and allowed to stand for 30 min. and then rinsed.
  • Solution (1) permanent lotion; pH 8.2
  • shampooed hair two blond, two middle blond and two damaged hair strands
  • strands are rinsed under tap water and the towel dry strands are treated with a 0.1%, b.w. colouring material solution consisting of the compound of formula (101) insolution (2) (permanent fixation) and allowed to stand for 20 min.
  • strands are rinsed under tap water and dried 12 hours at room temperature.
  • Application Example B15 A composition consisting of a. a solution 1 (permanent lotion), having a pH 8.2, and b. a 0.2%, b.w. solution of compound of formula (101) in plantaren, which are mixed together in a weight ratio of 1:1 is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 10 min. Then, the strands are rinsed under tap water. The towel dry strands are treated with a solution 2 (permanent fixation), and allowed to stand for 10 min. Then the strands are rinsed under tap water and dried 12 hours at room temperature.
  • a solution 1 permanent lotion
  • b. a 0.2% b.w. solution of compound of formula (101) in plantaren
  • a solution (1) permanent lotion
  • b. 0.1% b.w. solution of the compound of formula (101) in plantaren which are mixed together in a weight ratio of 1 :1
  • shampooed hair two blond, two middle blond and two damaged hair strands
  • the towel dry strands are treated with a solution (2) (permanent fixation), and allowed to stand for 10
  • a solution 1 (permanent lotion; pH 8.2) is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 20 min. Then the strands are rinsed under tap water and the towel dry strands are treated with a 0.1%, b.w. colouring material solution of compound of formula (101) in solution (2) (permanent fixation) and allowed to stand for 20 min. Then the strands are rinsed under tap water. The towel dry strands are treated with a composition consisting of a. a placebo colouring material and b. a aqueous hydrogen peroxide solution, 12 % b.w., and having a weight ratio of the placebo to the hydrogene peroxide solution of 1 :1. Then the strands are allowed to stand for 30 min. The strands are rinsed under tap water, shampooed and dried 12 hours at room temperature.
  • Solution (1) (permanent lotion; pH 8.2) is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 10 min. Then the strands are rinsed under tap water and the towel dry strands are treated with a 0.1% b.w. colouring material solution of compound of formula (101) in solution (2) (permanent fixation) and allowed to stand for 20 min. Then the strands are rinsed under tap water. The towel dry strands are treated with a fixation composition consisting of a) ammonia and b) an aqueous hydrogen peroxide solution having a pH of 9.8. Then the strands are allowed to stand for 10 min. The strands are rinsed under tap vwater, shampooed and dried 12 hours at room temperature.
  • a colouring material solution consisting of a. 25 ml of a 0.1% b.w. solution of compound of formula (101), and b. 25 ml of a 0.1% b.w. solution of compound of formula (106) is applied on dry hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 30 min.
  • a solution 1 (permanent lotion; pH 8.2) is a plied on shampooed hair (two blond, two middle blond and two damaged hair strands) and al lowed to stand for 10 min. Then the strands are rinsed under tap water, and the towel dry strands are treated with a colouring material solution consisting of a. 25 ml of a 0.1% b.w. solution of compound of formula (101) according to example A1 in plantaren, and b. 25 ml of a ⁇ .1% b.w. solution of compound of formula (106) according to example A6 in plantaren solution, allowed to stand for 20 min and then rinsed.
  • a colouring material solution consisting of a. 25 ml of a 0.1% b.w. solution of compound of formula (101) according to example A1 in plantaren, and b. 25 ml of a ⁇ .1% b.w. solution of compound of formula (106) according to example A6 in plantaren solution, allowed to stand for
  • the towel dry strands are treated with a solution (2) (permanent fixation) and allowed to stand for 10 min.
  • the strands are rinsed under tap water and dried 12 hours at room temperature.
  • the strands are rinsed under tap water.
  • the towel dry strands are treated with a solution (5) (permanent fixation) and allowed to stand for 10 min.
  • the strands are rinsed under tap water and dried 12 hours at room temperature.
  • a solution (1) (permanent lotion; pH 8.2) is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 10 min.
  • the strands are rinsed under tap water and the towel dry strands treated with a colouring material solution consisting of a. 0.2% b.w. solution of compound of formula (101) according to example A1, in plantaren, and b. placebo colouring material, which are mixed together in a weight ratio of 1:1, and then applied on the hair and allowed to stand for 20 min and then rinsed.
  • the towel dry strands are treated with a solution 2 (permane- nt fixation) and allowed to stand for 10 min.
  • the strands are rinsed under tap water and dried 12 hours at room temperature.
  • Solution (1) (permanent lotion; pH 8.2) is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 10 min. Tthe strands are rinsed under tap water and the towel dry strands treated with) a colouring material solution consisting of a. 0.2% b.w. solution of compound of formula (101) according to example A1, in plantaren, and b placebo colouring material, which are mixed together in aweight ratio of 1 :1 , and then, applied on the hair and allowed to stand for 10 min and then rinsed. Then the towel dry strands are treated with solution (2) (permanent fixation) and allowed to stand for 10 min. Then the strands are rinsed under tap water and dried 12 hours at room temperature.
  • a colouring material solution consisting of a. 0.2% b.w. solution of compound of formula (101) according to example A1, in plantaren, and b placebo colouring material, which are mixed together in aweight ratio of 1 :1
  • Solution (1 ) (permanent lotion) is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 1 0 min.
  • the strands are rinsed under tap water and the towel dry strands treated with a Q».1% b. w. colouring material solution of the compound of formula (101) in plantaren, allowed to stand for 20 min and then rinsed.
  • the towel dry strands are treated with a solution 2 (permanent fixation) and allowed to stand for 10 min.
  • the strands are rinsed under tap water and dried 12 hours at room temperature.
  • Solution (4) (permanent lotion; pH 8.7) is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 15 min.
  • the strands are rinsed under tap water, and the towel dry strands treated with a colouring material solution consisting of a 1.6 weight equivalents of a 0.1% b.w. solution of compound of formula ⁇ 101) according to example A1 in plantaren solution, b) 5 weight equivalents of of a 0.1% b.w. solution of compound of formula (106) according to example A6 in plantaren solution, and c) 1.5 weight equivalents of a 0.1% b.w. solution of compound of formula (103) according to example A3 in plantaren solution, and allowed to stand for 20 min. and then rinsed.
  • the towel dry strands are treated with solution (5) (permanent fixation; pH 2.9) and allowed to stand for 10 min. Trie strands are rinsed under tap water and dried for 12 hours at room temperature.
  • a colouring material solution consisting of a 1.6 w. eq. of a 0.1% b.w. solution of the compound of formula (101) in plantaren, and b.5 w. eq. of of a 0.1% b.w. solution of compound of formula (106) in plantaren, c. 1.5 w. eq. of a 0.1% b.w. solution of compound of formula (103) in plantaren solution, is applied on dry hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 20 min.
  • Hair (blond strand, damaged strand) is shampooed, rolled on curls windings and then treated with solution (4) (permanent lotion; pH 8.7) and then allowed to stand for 10 min.
  • the hair is treated with a 0.1% b.w. solution of compound of formula (101) in plantaren and allowed to stand for 20 min at room temperature.
  • the hair is rinsed under tap water, and the towel dry strands treated with a solution 5 (permanent fixation; pH 2.9) and allowed to stand for 5 min.
  • Curl windings are removed and the hair is again treated with solution (5) (permanent fixation; pH 3.92) and allowed to stand for 5 min.
  • the strands are rinsed under tap water and dried 12 hours at room temperature.
  • the strands are curled and red coloured.
  • Hair (blond strand, damaged strand) is shampooed and then rolled on curls windings and treated with solution (4) (permanent lotion; pH 8.7 which is diluted with 2 weight equivalents of water and then allowed to stand for 5 min.
  • the hair is treated with 0.1% b.w. solution of compound of formula (101) in plantaren and allowed to stand for 20 min at room temperature.
  • the hair is rinsed under tap water and the towel dry strands are treated with solution (5) (permanent fixation; pH 2.9) and allowed to stand for 10 min.
  • the strands are rinsed under tap water and dried 12 hours at room temperature.
  • Hair (blond strand, damaged strand) is shampooed and then rolled on curls windings and treated with solution (4) (permanent lotion; pH 8.7), which is diluted with 2 weight equivalents of water and allowed to stand for 10 min.
  • solution (4) permanent lotion; pH 8.7
  • the hair treated with 0.1% b.w. solution of the compound of formula (101) in plantaren and allowed to stand for 20 min at room temperature.
  • the hair is rinsed under tap water and the towel dry strands are treated with solution (5) (permanent fixation; pH 2.9) and allowed to stand for 10 min.
  • the strands are rinsed under tap water and dried 12 hours at room temperature.
  • a solution 1 permanent lotion
  • B. a 0.2% b.w. solution of compound of formula (101) in plantaren which are mixed together in a weight ratio of 1 :2 of component a) to b
  • a composition consisting of 30 g of a 0.1% b. w. solution of the compound of formula (10 1) in plantaren having a pH of 6.12 is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 20 min. The strands are rinsed under tap water and dried 12 hours at room temperature.
  • a composition comprising 49.95 g of a 0.1%, b.w. solution of the compound of formula (101) in plantaren having a pH of 6.1, and
  • the strands are rinsed under tap water and dried 12 hours at room temperature.
  • composition comprising
  • the strands are rinsed under tap water and dried 12 hours at room temperature.
  • composition comprising
  • 0.55g ammonium thioglycolate solution, and ammonia and citronic acid for adjusting the pH to 8.0, is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 20 min.
  • the strands are rinsed under tap water.
  • the towel dry strands are treated with solution (2) (permanent fixation) and allowed to stand for 10 min.
  • the strands are rinsed under tap water and dried 12 hours at room temperature.
  • Example B37 10% b.w. of a solution of sodium sulfite in water having a pH of 8 (the pH is adjusted by ammonia and citric acid) is applied on shampooed hair (blond strand, damaged strand) and allowed to stand for 10 min.
  • the hair is rinsed and treated then with 0.1% b.w. of a solution (pH 9.5) of the compound of formula (101) and allowed to stand for 20 min at room temperature.
  • the hair is rinsed under tap water and the towel dry strands are treated with solution (5) (permanent fixation) having a pH 2.9 and allowed to stand for 10 min.
  • the strands are rinsed under tap water and dried 12 hours at room temperature.
  • composition comprising
  • 0.05g of a 0.1% b.w. solution of sodium sulfite in water having a pH of 8 (the pH is adjusted by ammonia and citric acid), is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 20 min.
  • the hair is rinsed under tap water and the towel dry strands are treated with solution (5) (permanent fixation) having a pH 2.9 and allowed to stand for 10 min.
  • the strands are rinsed under tap water and dried 12 hours at room temperature.
  • composition comprising
  • the hair is rinsed under tap water and the towel dry strands are treated with a solution 2 (permanent fixation) and allowed to stand for 10 min.
  • the strands are rinsed under tap water and dried 12 hours at room temperature.
  • 2% b.w. of a solution of sodium sulfite in water having a pH of 8 (the pH is adjusted by ammonia and citric acid) is applied on shampooed hair (blond strand, damaged strand) and then allowed to stand for 10 min.
  • the hair is rinsed and treated then with 0.1% b.w. of a solution of the compound of formula (101) (pH 9.5) and allowed to stand for 20 min at room temperature.
  • the hair is rinsed under tap water and the towel dry strands treated with solution (2) (permanent fixation) having a pH 3.92 and allowed to stand for 10 min.
  • the strands are rinsed under tap water and dried 12 hours at room temperature.
  • 2% b.w. of a solution of ammonium thioglycolate in water (pH 8; adjusted with ammonia and citric acid) is applied on shampooed hair (blond strand, damaged strand) and then allowed to stand for 10 min.
  • the hair is rinsed and treated with 0.1% b.w. of a solution of the compound of formula (101) according in plantaren (pH 9.5) and allowed to stand for 20 min at room temperature.
  • the hair is rinsed under tap water and the towel dry strands are treated with solution (2) (permanent fixation) and allowed to stand for 10 min.
  • the strands are rinsed under tap water and dried 12 hours at room temperature.
  • 2% b.w. of a solution of ammonium thiolactate in water (pH of 8; adjusted by ammonia and citric acid) is applied on shampooed hair (blond strand, damaged strand) and then allowed to stand for 10 min.
  • the hair is rinsed and treated with 0.1% b.w. of a solution of the compound of formula (101) in plantaren (pH 9.5) and allowed to stand for 20 min at room temperature.
  • the hair is rinsed under tap water and the towel dry strands treated with solution (2) (permanent fixation) and allowed to stand for 10 min. Then the strands are rinsed under tap water and dried 12 hours at room temperature.
  • composition comprising
  • composition comprising
  • composition comprising
  • 0.05g of a 0.1 % b.w. solution of ammonium thioglycolate in water (pH 8.0; adjusted by ammonia and citric acid), is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 20 min. Then the hair is rinsed under tap water and the towel dry strands treated with a composition comprising component a) and b) in a weight ratio of 1 :1, wherein a) is hydrogene peroxide, 6% b.w. solution in water, and b) is a colouration composition of a placebo and then are allowed to stand for 30 min. Then the strands are rinsed under tap water and dried 12 hours at room temperature.
  • a solution of 0.1% b.w. of the compound of formula (101) in plantaren pH 8; pH is adjusted with ethanol amin
  • shampooed hair two blond, two middle blond and two damaged hair strands
  • the hair is rinsed under tap water and dried 12 hours at room temperature.
  • a solution of 0.1% b.w. of the compound of formula (101) (pH 8; adjusted with ethanolamine) is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 20 min.
  • the hair is rinsed under tap water and the towel dry strands treated with a composition comprising component a) and b) in a weight ratio of 1:1, wherein a) is hydrogen peroxide, 6% b.w. solution in water, and b) is a colouration composition of a placebo and are allowed to stand for 30 min.
  • the strands are rinsed under tap water and dried for 12 hours at room temperature.
  • composition comprising
  • a solution of 0.1% b.w. of the compound of formula (101) in plantaren (pH of 5.5; adjusted with ethanolamin) is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 20 min. Then the hair is rinsed under tap water and the towel dry strands are treated with a composition comprising component a) and b) in a weight ratio of 1:1, wherein a) is hydrogen peroxide, 6% b.w. solution in water, and b) is a colouration composition of a placebo and then allowed to stand for 30 min. The strands are rinsed under tap water and dried for 12 hours at room temperature.
  • composition comprising
  • the strands are rinsed under tap water and dried for 12 hours at room temperature.
  • composition comprising
  • 0.85g of a 0.1% b.w. solution of ammoniumthiolactate in water pH 8.0; adjusted with ammonia and citric acid
  • shampooed hair two blond, two middle blond and two damaged hair strands
  • the hair is rinsed under tap water and the towel dry strands treated with a solution (2) (permanent fixation) and allowed to stand for 10 min..
  • the strands are rinsed under tap water and dried 12 hours at room temperature.
  • 0.1% b.w. of a solution of ascobinic acid in water pH 8; adjusted by ammonia and citric acid
  • shampooed hair Blond strand, damaged strand
  • the hair is rinsed and treated then with 0.1% b.w. of a solution of compound of formula (101) according to example A1 in plantaren (with pH 6.1), and allowed to stand for 20 min at room temperature.
  • the hair is rinsed under tap water, and the towel dry strands are treated with a solution 2 (permanent fixation) and allowed to stand for 10 min.
  • the strands are rinsed under tap water and dried 12 hours at room temperature.
  • 2% b.w. of a solution of hydrochinon in water (pH 8; adjusted by ammonia and citric acid) is applied on shampooed hair (blond strand, damaged strand) and then allowed to stand for 10 min.
  • the hair is rinsed and treated with 0.1% b.w. of a solution of the compound of formula (101) in plantaren solution (with pH 6.1) and allowed to stand for 20 min at room temperature.
  • the hair is rinsed under tap water and the towel dry strands treated with a fixating solution (Goldwell) having a pH 3.92 and allowed to stand for 10 min. Then the strands are rinsed under tap water and dried 12 hours at room temperature.
  • Test 1 A solution 1 (permanent lotion; pH 8.2) is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 10 min. Then the strands are rinsed under tap water, and the towel dry strands are treated with a 0.1 % b.w. colouring material solution of a compound of formula (102) according to example A2, in plantaren and allowed to stand for 20 min. and then rinsed. The towel dry strands are treated with a solution (2) (permanent fixation) and allowed to stand for 10 min. Then the strands are rinsed under tap water and dried for 12 hours at room temperature.
  • a solution 1 permanent lotion; pH 8.2
  • a solution (2) permanent fixation
  • Test 2 Solution (1) (permanent lotion; pH 8.2) is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 10 min..
  • the wet strands are treated with a colouring material solution consisting of a 0.1%, b.w. colouring material solution of the compound of formula (102) in plantaren and allowed to stand for 20 min. and then rinsed.
  • the towel dry strands are treated with solution (2) (permanent fixation) and allowed to stand for 10 min. Then the strands are rinsed under tap water and dried for 12 hours at room temperature.
  • Test 3 A colouring material consisting of the compound of formula (102) in plantaren is applied on dry hair and then allowed to stand for 20 min., rinsed and dried for 12 hours at room temperature.
  • a solution 1 (pH 8.2; permanent lotion) is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 10 min. Then the strands are rinsed under tap water and the towel dry strands are treated with a colouring material solution consisting of a compound of formula (102) according to example A2, in plantaren and allowed to stand for 20 min and then rinsed. Then, the towel dry strands are treated with a solution 2 (permanent fixation), and allowed to stand for 10 min. Then, the strands are rinsed under tap water and dried 12 hours at room temperature.
  • Application Example 56 is repeated with the difference that instead of a compound of formula (102) a compound of formula (106) is used.
  • Hair (two blond, two middle blond and two damaged hair strands) is treated with a colouring material solution consisting of a 0.1%, b.w. colouring material solution of a compound of formula (102) according to example A2, in plantaren and allowed to stand for 20 min. Then, the strands are rinsed under tap water and dried 12 hours at room temperature.
  • composition comprising
  • 0.05g of a 0.1% b.w. solution of ammoniumthioglycolate in water having a pH of 8.0 (the pH is adjusted by ammonia and citric acid), is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 20 min. Then, the hair is rinsed under tap water, and the towel dry strands are treated with a fixating solution (Goldwell) having a pH 3.92 and allowed to stand for 10 min. Then, the strands are rinsed under tap water and dried 12 hours at room temperature.
  • a fixating solution Goldwell
  • Hair (two blond, two middle blond and two damaged hair strands) is treated with a colouring material solution consisting of a 0.1%, b.w. colouring material solution of a compound of formula (102), in plantaren and allowed to stand for 20 min. Then, the strands are rinsed under tap water and dried 12 hours at room temperature.
  • a colouring material solution consisting of a 0.1%, b.w. colouring material solution of a compound of formula (102), in plantaren and allowed to stand for 20 min. Then, the strands are rinsed under tap water and dried 12 hours at room temperature.
  • a solution 4 (permanent lotion) having a pH 8.7, is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 15 min. Then, the strands are rinsed under tap water, and the towel dry strands are treated with a colouring material consisting of a 0.1%, b.w. solution of compound of formula (101) in plantaren and allowed to stand for 20 min. and then rinsed. Then, the towel dry strands are treated with a solution 5 (permanent fixation), and allowed to stand for 10 min. Then the strands are rinsed under tap water and dried 12 hours at room temperature.
  • Hair (two blond, two middle blond and two damaged hair strands) is treated with a colouring material solution consisting of a 0.1%, b.w. solution of compound of formula (107) in plantaren, and allowed to stand for 20 min. Then, the strands are rinsed under tap water and dried 12 hours at room temperature.
  • a colouring material solution consisting of a 0.1%, b.w. solution of compound of formula (107) in plantaren, and allowed to stand for 20 min. Then, the strands are rinsed under tap water and dried 12 hours at room temperature.
  • a solution 1 (permanent lotion), having a pH 8.2, is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 15 min.. Then the strands are rinsed under tap water, and the towel dry strands are treated with a colouring material consisting of a 0.1% b.w. solution of compound of formula (101) in plantaren and allowed to stand for 20 min. and then rinsed. Then, the towel dry strands are treated with a solution 2 (permanent fixation), and allowed to stand for 10 min. Then, the strands are rinsed under tap water and dried 12 hours at room temperature.
  • composition comprising
  • the strands are rinsed under tap water and dried 12 hours at room temperature.
  • composition comprising
  • a solution 4 (permanent lotion) having a pH 8.7, is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 15 min. Then, the strands are rinsed under tap water, and the towel dry strands are treated with a colouring material consisting of a 0.1%, b.w. solution of compound of formula (101) according to example A1 , in water and allowed to stand for 20 min. and then rinsed. Then, the towel dry strands are treated with a solution 5 (permanent fixation), and allowed to stand for 10 min.
  • the strands are rinsed under tap water, and then shampooed.
  • a solution 4 permanent lotion having a pH 8.7, is applied on the shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 15 min. Then, the strands are rinsed under tap water, and the towel dry strands are treated with a colouring material comprising

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Abstract

Formula (I) wherein R1 and R2 each independently from each other are a residue of an organic dye; Y1 and Y2 each independently from each other are unsubstituted or substituted, straightchain or branched, interrupted or uninterrupted -C1-C10alkylene-; -C5-C10cycloalkylene-; C5-C10arylene; or-C5-C10arylene-(C1-C10alkylene)-; Z1 and Z2 independently from each other are Formula (II) are each independently from each other hydrogen; or unsubstituted or substituted, straight-chain or branched, monocyclic or polycyclic, interrupted or uninterrupted C1-C14alkyl; C2-C14alkenyl; C6-C10aryl; C6-C10aryl-C1-C10alkyl; or C5-C10alkyl(C5-C10aryl); r, q and n independently from each other are 0 or 1, if n is 0, Z3 is hydrogen; and if n is 1, Z3 is -S-; with the proviso that the method does not comprise treating the fiber with an enzyme of the type of a protein disulfidisomerase (EC 5.3.4.1). Further, the present invention relates to novel disulfid compounds, compositions thereof, especially comprising other dyes, and to processes for their preparation.

Description

Sulfide dyes
The present invention relates to novel sulfide dyes, compositions thereof, to processes for their preparation and to their use for the dyeing of organic materials, such as keratin fibers, wool, leather, silk, cellulose or polyamides, especially keratin-containing fibers, cotton or nylon, and preferably hair, more preferably human hair.
It is known, for example, from WO 95/01772 that cationic dyes can be used to dye organic material, for example keratin, silk, cellulose or cellulose derivatives, and also synthetic fibers, for example polyamides. Cationic dyes exhibit very brilliant shades. A disadvantage is their unsatisfactory fastness to washing.
R. S. Asquith, P. Carthew and T. T. Francis describe in JSDC from May 1973, pages 168- 172 that ortho-azo disulfide dyes do not lead to covalent bonding with keartin fiber of wool, and that para-azo disulfide dyes underwent only at high concentration some covalent bindings with wool.
The actual technical problem of the present invention was to provide dyes that are distinguished by deep dying having good fastness properties with respect to washing, light, shampooing and rubbing.
Accordingly, the present invention relates to a method of dyeing keratin-containing fibers, comprising treating the fiber with at least one sulfide dye of formula
(1) F - -(Z,)r- -Y— S- -Y.7 "(Z^q- -R, , wherein n
Ri and R each independently from each other are a residue of an organic dye;
Yi and Y2 each independently from each other are unsubstituted or substituted, straight- chain or branched, interrupted or uninterrupted -C Cι0alkylene-; -C5-C10cycloalkylene-; C5-Cιoarylene; or-C5-Cιoarylene-(Cι-Cιoalkylene)-;
Zi and Z2 independently from each other are -C(O)-; -C2-d2alkenylene-; -(CH2CH2-O)ι-5-; -Cι-Cι0alkylene(C5-Cιoarylene)-; -C5-C10arylene-; -C5-Cι0cycloalkylene-; -C(O)O-; R, I 3 -OCO-; -N(R3)-; — N— ; -CON(R4)-; -(R5)NC(O)-; -O-; -S-; -S(O)-; or-S(O)2-; R4 R3, l^and R5 are each independently from each ot-her hydrogen; or unsubstituted or substituted, straight-chain or branched, monocyclic or polycyclic, interrupted or uninterrupted CrC1 alkyl; C2-Cι4alkenyl; Cs-C-ioaryl; C6-Cιoaryl-Cι-Cι0alkyl; or C5-C10alkyl(C5-C10aryl); r, q and n independently from each other are 0 or "1 , if n is 0,
Z3 is hydrogen; and if n is 1.
Z3 is -S-; with the proviso that the method does not comprise treating the fiber with an enzyme of the type of a protein disulfidisomerase (EC 5.3.4.1).
Preferably Yi and Y2 are unsubstituted or substituted straight-chain or branched interrupted or uninterrupted ΘF-C5-Cι0cycloalkylene- or -Gi-C-ioalkylene.
Further preferred is the method of the present invention, wherein Disulfid-dyes are used, i.e. wherein in formula (1 ) n is 1.
More preferred is the method of the present invention, wherein Ri and R2 are identical.
Further more preferred is the method of the present invention, wherein
Zi and Z2 independently from each are other -NfRs)-;
Figure imgf000003_0001
or -S-; and R3l t or R5 are defined as in formula (1)
Further more preferred is the method wherein at least one sulfide dye of formula
(2) Rn (Z,)r Y— S S Y2 ( ,)q R2 and/or at least one sulfide dye of formula
(3) R, (Z^r Y— S H is used, wherein
Ri, R2, Zi, Z2, Yi, Y2l r and q are defined as in formula (1). Further more preferred is the method of the present invention, wherein the residue of an organic dye is selected from the group of anionic, cationic, neutral, amphoter and zwitterionic dyes, and especially preferred, wherein the residue of an organic dye is a cationic dye.
Furthermore preferred is the method of the present invention, wherein the residue of an organic dye is selected from the group of anthraquinone - acridine, azo, azomethine, hydra- zomethine, benzodifuranone, coumarine, diketopyrrolopyrrol, dioxaxine, diphenylmethane, formazan, indigoid, indophenol, naphthalimide, naphthoquinone, nitroaryl, merocyanine, methin, oxazine, perinone, perylene, pyrenequinone, prrtalocyanine, phenazine, quino- neimine, quinacridone, quinophtalone, styryl, triphenylmethan, xanthene, thiazine and thioxanthene dye.
Preferably the residue of an organic dye is selected from azo, azomethin, hydrazomethin, merocyanine, methin and styryl dyes, and more preferred from azo, azomethin dye and hydrazomethin dyes;
Suitable nitroaryl dyes of the present invention are for example selected from the following compounds:
4-amino-1 -nitrobenzene, 2-amino-6-chloro-4-nitropheno>l, 2-amino-3-nitrophenol, 2-amino-1- nitrobenzene, 1 ,4-diamino-2-nitrobenzene, 4-acetylamirιo-1-amino-2-nitrobenzenel 1,2- diamino-4-nitrobenzene, 1-amino-2-methyl-6-nitrobenz&ne, 3-amino-6-methylamino-2- nitro- pyridine (Azarot), pikraminacid, 4-amino-3-nitrophenol, 4-amino-2- nitrophenol, 6-nitro-o- toluidine, 1, 4-bis- (2-hydroxyethyl) amino-2- nitrobenzene, 1- (2-hydroxyethyl) amino-2-nitro- benzene (HC Yellow No. 2), 1- (2-hydroxyethyl) amino-2- (2-hydroxyethyl) oxy-4-nitro- benzene (HC YellowNo.4), 1 -amino-2- (2-hydroxyethyl) amino-5-nitro-benzene (HC YellowNo. 5), 1- (2, 3-dihydroxypropyl) amino-4-trifluorrnethyl-2-nitro-benzene (HC Yellow No. 6), 1- (2-hydroxyethyl) amino-4-chlor-2-nitro-benzene (HC Yellow No. 12), 1-amino-2- nitro-4-[bis (2-hydroxyethyl)] amino-benzene (HC Red Mo. 13), 4-chloro-2, 5-bis [(2, 3- dihydroxypropyl) amino]-1-nitro-benzene (HC Red No. 1 1), 1-amino-5-chloro-4-(2, 3- dihydroxypropyl) amino-benzene (HC Red No. 10), 1-amino-2-nitro-4- (2-hydroxyethyl) amino-benzene (HC Red No. 7), 2-chloro-5-nitro-N-(2-hydroxyethyl)-1, 4-phenylendiamine, 1-[(2- hydroxyethyl)-amino]-2-nitro-4-amino-benzene (HC Red No. 3), 4-amino-2- nitro- diphenylamine (HC Red No. 1), 2-nitro-4'-hydroxy-diphenylamine (HC Orange No. 1), 1- amino-3-methyl-4-(2-hydroxyethyl) amino-6-nitrobenzene (HC Violet No. 1), 2- (2- hydroxyethyl) amino-5- (bis (2-hydroxyethyl)) amino-1-nitro-benzene (HC Blue No. 2), 1- (2- hydroxyethyl) amino-2-nitro-4-N-ethyl- N-(2-hydroxyethyl) amino-benzene (HC Blue No. 12), 4-amino-3,5-dinitro- benzoic acid, 4-amino-2-nitrodiphenylamin-2'-carbonic acid, 2- (4'- amino-^-nitroanilinoJ-benzoic acid, 6-nitro-2, 5-diaminopyridine, 2-amino-6-chloro- 4- nitrophenol, 4-amino-4'-nitrostilben-2, 2'-disulfonic acid, 4'-amino-4- nitrodiphenylamin-2- sulfonic acid, 4'-amino-3'-nitrobenzophenon-2- carbonic acid, 1 -amino-4-nitro-2- (2'- nitrobenzylidenamino)-benzene, 2- [2- (diethylamino) ethylaminoJ-5-nitroaniline, 3-amino-4- hydroxy-5- nitrobenzolsulfonic acid, 3-amino-3'-nitrobiphenyl, 3-amino-4-nitro- acenaphthen, 2-amino-l-nitronaphthaline, 5-amino-6-nitrobenzo-1 , 3-dioxol, 2-amino-6-nitrobenzothiazol, 4- (3-hydroxypropyl) amino-3-nitro-phenol (HC Red BN), 2-amino-4, 6-dinitro-phenol, 3-nitro- 4- (2-hydroxyethyl)- aminophenol, 2- (2-hydroxyethyl) amino-4, 6-dinitrophenol, 2-amino-6- chlor- 4-nitrophenol, 2-chloro-6-ethylamino-4-nitro-phenol, 1-(2- hydroxyethyl) amino-4- methyl-2-nitrobenzene, 1-(2'-ureidoethyl) amino-4- nitrobenzene, 4-amino-2-nitro- diphenylamin-2'-carbonic acid, 6-nitro-1 ,2, 3,4- tetrahydrochino-xaline and 4-ethylamino-3- nitrobenzoic acid.
Suitable anthraquinone dyes suitable for the method of the present invention are the following compounds: 1-[(3-aminopropyl) amino]-anthraquinone (HC Red No. 7), 2-[(2- aminoethyl) amino]-anthraquinone (HC Orange No. 5), 1,4, 5,8-tetraamino-anthrachinone (Disperse Blue 1), 1-[ (2-Hydroxyethyl) amino]-4-methylamino-anthraquinone (Disperse Blue 3), 1,4-[(2-hydroxyethyl) amino] -5,8-dihydroxy- anthraquinone (Disperse Blue 7), 1,4- diamino-2-methoxy- anthraquinone (Disperse Red 11), 1-amino-4- hydroxy- anthraquinone (Disperse Red 15), 1 ,4-diamino-anthraquinone (Disperse Violet 1), 1-amino-4-methyIamino- anthrachinone (Disperse Violet 4) and 1-amino-4-isopropylamino-anthraquinone (Disperse Violet 15).
Suitable azo dyes are for example the following compounds:
4-amino-4'-[bis (2-hydroxyethyl)] amino-azobenzene (Disperse Black 9), 4-amino-4'-nitro- azobenzene (Disperse Orange 3), 3-hydroxy-4-[(2-hydroxy-naphth-1-yl) azo)-7-nitro- naphthalin-1- sulfonic acid-chromcomplex (Acid Black 52), 1-arnino-2- (3'-nitro- phenylazo)-7- phenylazo-8-naphthol-3, 6-disulfonic acid (Acid blue Nr. 29), 1-amino-2- (2'-hydroxy-4'- nitrophenylazo)-8-naphthol-3, 6-disulfonic acid (Palatinchrome green), 1 -amino-2- (3'-chlor- 2'-hydroxy-5'-nitrophenylazo)-8-naphthol-3I 6-disulfonic acid (Gallion) and diamino-3', 5'- dinitro-2'- hydroxy-5-methyl-azobenzene (Mordant brown 4). Suitable cationic dyes are the following compounds: N-[4-[ [4-(diethylamino) phenyl] [4- (ethylamino)-naphth-l-yl] methylen]-2,5- cyclohexadien-1-yliden]-N-ethyl-ethanim inium- chloride (Basic Blue No. 7), N- {4- [ (4- (dimethylamino) phenyl) 4- (phenylamino)-l-naph- thalenyl]methylen}-2, 5-cyclohexadien-1-ylidene]-N-methyl- methaniminiumchloride (Basic Blue 26), 4- [ (4-aminophenyl) (4-imino-2,5- cyclohexadien-1-yliden) methyl]-2-methyl-anilin- hydrochloride (Basic Violet 14), N-{3-[(4, 5-dihydro-3-methyl-5-oxo-1-phenyl-1 H-pyrazol-4- yl) azo] phenylJ-N, N, N-trimethylammoniumchloride (Basic Yellow 57), N- [7- hydroxy-8-[(2- methoxyphenyl) azo]-naphth-2-yl]-N, N, N- trimethylammonium-chloride (Basic Red 76), N- [4-[[4- (dimethylamino) phenyl] [4-(phenylamino)-naphth-1-yl]-methylen]-2, 5- cyclohexadien- 1-yliden]-N-methyl-2-methaniminiumchloride (Basic Blue 99), [8-[(4'-amino-2'-nitrophenyl) azo]-7-hydroxy-naphth-2-yl]- trimethylammoniumchloride (Basic Brown 16), [8-(( -'-amino-3'- nitrophenyl) azo)-7-hydroxy-naphth-2-yl]-trimethylammoniumchloride (BasicBrown 17), Basic Yellow 87, Basic Red 51 or Basic Orange 31.
Most preference is given to a method wherein the fiber is treated with at least one sulfide dye selected from the dyes of formula
(7) D+-Z4-M-(Z1)r-Y1-S-Z3-^Y-(Z2)-M-Z5-D+]n . and
(8) τ-z4-Q+-(z1)-Y-s-z3- Y2-(Z2)q-Q-z— τ]n ; wherein
--^and Z5 independently from each other are a bivalent radical selected from -N=-N-; -CR6=N-;
-N=CR7-; -NR8-N=CR9-; and -Rι0C=N-NRn-; wherein
Re, R7. Rs. 9, Rioand Rn independently from each other are hydrogen; unsubstituted or substituted C Cι alkyl; C2-Cι4alkenyl; C5-Cι0aryl; d Ci0alkyl-C5-Ci0aryl; or C5-Cι0aryl- CrCι0alkyl; and D+ is a cationic radical of a substituted or unsubstituted aromatic or heterocyclic compound, wherein the cationic charge may be part of the aromatic compounds or part of the substituent; M is a bivalent radical of an aromatic or heteroaromatic substituted or unsubstituted compound; T is a radical of an aromatic substituted or unsubstituted compound; Q+ is a cationic biradical of a substituted or unsubstituted aromnatic or heteroaromatic compound; and
Zi, Z2, Z3, YL Y2J n, r and q are defined as in formula (1).
Especially preferred is a method, wherein D is a radical of a cationic aromatic substituted or unsubstituted heterocyclic compound of formulae
Figure imgf000007_0001
wherein the asterix * indicates the bond to Z-t and/or Z5 of formula (7); and
Q+ is a cationic bivalent radical of an aromatic heterocyclic compound of formulae
(D14) ;
Figure imgf000007_0002
Figure imgf000007_0003
wherein the asterix * indicates a bond to and/or Z5 of formula (8); the asterix ** is a bond to Zi and/or Z2 of formula (8); and M is a bivalent radical of formulae (D19) or
Figure imgf000008_0001
(D20) , wherein
Figure imgf000008_0002
the asterix * indicates the bond to A or/and Z5 of formula (7); the asterix ** indicates the bond to Z and/or Z2 of formula (7); and
is a radical of the compounds of formulae (D21) or
Figure imgf000008_0003
Figure imgf000008_0004
The heteroaromatic cycles of the radicals of the formulae (D9) - (D22) may be interrupted by one or more than one -O-, -S-, -(SO2)-, -C Cι0alkylene or -(NR52)-;
Very specially preferred is a method, wherein D+ is a radical of a cationic aromatic substituted or unsubstituted heterocyclic compound of formulae
Figure imgf000008_0005
wherein the asterix * indicates the bond to A. and/or Z5 of formula (7); and
Q+ is a cationic bivalent radical of an aromatic heterocyclic compound of formulae
(14) -
Figure imgf000009_0001
(17) ; wherein
Figure imgf000009_0002
the asterix * indicates a bond to 7A and/or Z5 of formula (8); the asterix ** is a bond to Zi and/or Z2 of formula (8); and
M is a bivalent radical of formulae (19)
Figure imgf000009_0003
, wherein
Figure imgf000009_0004
the asterix * indicates the bond to 7 or/and Z5 of formula (7); the asterix ** indicates the bond to Zi and/or Z2 of formula (7); and
is a radical of the compounds of formulae (21 )
Figure imgf000009_0005
(22) , wherein
Figure imgf000009_0006
the asterix * indicates the bond to 7 and/or Z5 of compound of formula (8). ln the formulae (D9) - (D22) and (9) - (22)
Xi, X2.X3, t, X5.X6.X7, X8.X9.X10. X11. Xi2,Xi3, X ,Xi5andXieare independently from each other N or a radical of CR^, Z6 is -O-; -S-; or a radical of NR50,
Z7, Z8, Z9j Zιo, Z11, Z12, Z13 and Z14 are independently from each other N or a radical of CR5ι; E, Eι, G and G1 are independently from each other -O-, -S-, -(SO2)-, -CrCι0alkylene or -(NR52)-;
Rl3. R 4. Rl5, Rl8, Rl9. R21. R-S, R23ι R25) R261 R27, R28J R29, R3O1 R3I1 R32J R33. R34j 35ι R36. R37ι R38, R39, R40, Rn. R42, R43, R44. R45, R.6, R47, R48. R49 and R^ are independently from each other hydrogen; halogen; C C 4alkyl, which is saturated or unsaturated, linear or branched, substituted or unsubstituted, or interrupted or uninterrupted with heteroatoms; a radical of phenyl, which substituted or unsubstituted; a of carboxylic acid radical; sulfonic acid radical; hydroxy; nitrile; Cι-Cι6alkoxy, (poly)-hydroxy-C2-C4-alkoxy; halogen; sulfonylamino; SR60. NHR53; NRS4R55; OR61; SO2; COOR62; NR56COR58; or CONR57; and
R12. R16, R17, R20, R2 j R50. R52, R53. R54J R55J R56J R57, Rδδj RΘOJ Rβi and Rβ2 are each independently of the other hydrogen; unsubstituted or substituted C Cι4alkyl, C2- C alkenyl, C5-Cι0aryl, C5-Cιoaryl-(CrCιoalkyl), or -Cι-CιOalkyl(C5-Cι0aryl); and
An is an anion.
Very especially most preferred is a method, wherein D+ is a radical of a cationic aromatic
substituted or unsubstituted heterocyclic compound of formulae (23)
Figure imgf000010_0001
(24) R16 , (26) or
Figure imgf000010_0002
Figure imgf000010_0003
(27) wherein
Figure imgf000010_0004
is a bond to 7A and/or Z5 of formula (7); and Q+ is a biradical of a cationic aromatic substituted or unsubstituted heterocyclic compound
of formulae (28)
Figure imgf000011_0001
(31) * ; wherein
Figure imgf000011_0002
* is a bond to Z4 and/or Z5 of formula (8);
** is a bond to and Zi and/or Z2 of formula (8); and
M is a bivalent radical of formula
(33) . wherein
Figure imgf000011_0003
* is a bond to Z4 and/or Z5 of formula (7) or (8),
** is a bond to and Z and/or Z2 of formula (7) or (8); and n is 1 or 0; and
T is a radical of formulae
(34) , wherein
Figure imgf000011_0004
i2i Ri6. Ri » Ri8. R25, R26. R37, R38 and An are defined as in claim 14.
Furthermore, very especially most preferred is a method, comprising disulfide dyes of
formulae (35) , wherein
Figure imgf000011_0005
R63 is hydrogen; unsubstituted or substituted d-Cι4alkyl; C5-C10cycloalkyl; C -C14alkenyl; C5- Cι0aryl-(CrC10alkyl); Crdoalky rCioaryl); C5-C10aryl; and R64 is hydrogen; f unsubstituted or substituted, straight-chain or branched, interrupted or uninterrubted CrC14alkyl, Cδ-Ciocycloalkyl, C5-Cι0aryl, or C5-Ci0aryl-(Ci-C10alkyl); d- Cι0alkyl(C5-Cι0aryI);
R67 is hydrogen; or a radical of formula (35a) ~ NR69 \ ; R68
Y10 is unsubstituted or substituted, straight-chain or branched, monocyclic, from C3-alkyl upwards, or polycydic, from C5-alkyl upwards, interrupted or uninterrupted, d-C10alkylene; C5-Cι0arylene-(CrC10alkylene);
Figure imgf000012_0001
or-C5- C10arylene; and
R68and R6gare each independently of the other hydrogen, unsubstituted or substituted d- C14alkyl, C2-C 4alkenyl- -C5-Cιoarylen-(Cι-Cιoalkyl), -Cι-Cιoalkylen(C5-doaryl), C5- Cι0aryl,
Figure imgf000012_0002
R71 is hydrogen; unsubstituted or substituted d-Cι4alkyl; C5-Cι0cycloalkyl; C2-C14alkenyl; C5- C10aryl; d-doalkyKCg-doaryl); C5-Cιoaryl-(CrCι0alkyl); R72and R?3are each independently of the other hydrogen; C C 4alkyl; C2-Cι alkenyl; a radical of acarboxylic; a radical of a sulfonic acid; C5-Cι0aryl; hydroxy, nitril, CrCι6alkoxy, (poly)-hydroxy-C2-C4-alkoxy, carboxylic acid;; halogen; sulfonylamino; SR6o; NHR53; NR54R55; OR61; COOR62; NR56COR58; or CONR57; R53, R54, R55. R56. R57. 58. Reo, ei and R62 are each independently of the other hydrogen; unsubstituted or substituted d-Cι alkyl; C2-Cι alkenyl; -C5-Cιoarylen-(CrC 0alkyl); -d- C oalkylene(Cs-C10aryl); orC5-Cι0aryl;
(37) . wherein
Figure imgf000012_0003
R76and R77are each independently of the other hydrogen, d-C1 alkyl, which is saturated or unsaturated, linear or branched, substituted or unsubstituted, or interrupted or uninterrupted with heteroatoms; a radical of phenyl, which substituted or unsubstituted; a radical of carboxylic acid; C5-Cι0aryl; a radical of hydroxy, nitril, Cι-Cι6alkoxy, (poly)- hydroxy-C2-C4-alkoxy, carboxylic acid, sulfonic acid; halogen, sulfonylamino, SR6o, NHR53 or NR54R55, OR6ι, SO2, COOR62J
Figure imgf000013_0001
CONR57; R53. R5 , R55, R56, R57, 58. Reo, Rei and R62 are each independently of the other hydrogen, unsubstituted or substituted d-Cι alkyl, C2-d alkenyl, -C5-Cιoarylen-(Cι-Cι0alkyl), -Cι- C10alkylen(C5-Cιoaryl), C5-Cι0aryl,
(38) . wherein
Figure imgf000013_0002
R79, R78 and R8o are each independently of the other hydrogen; Cι-Cι4alkyl, which is saturated or unsaturated, linear or branched, substituted or unsubstituted, or interrupted or uninterrupted with heteroatoms; a radical of phenyl, which substituted or unsubstituted; a radical of carboxylic acid; C5-Cιoaryl: a radical of hydroxy, nitril, d-dβalkoxy, (poly)- hy roxy-drd-alkoxy; carboxylic acid; sulfonic acid; halogen; sulfonylamino; SR6o; NHR53; NR54Rs5; OR6ι; SO2; COOR62; NR56COR58; or CONR57;
R53, R54, R55, R56, R57, R58, Reo. Rei and R6 are each independently of the other hydrogen; unsubstituted or substituted Cι-d alkyl; C2-Cι4alkenyl; C5-Cιoarylene-(Cι-C10alkyl), d- Cιoalkylene(C5-Cιoaryl), C3-Cι0aryl;
More preferred are: compounds o formula (35), wherein R63 is methyl; compounds of formula (36), wherein R72 is hydrogen; and R72 is in the para-postion of the phenyl moiety; compounds of formula (37), wherein R76 is hydrogen; and R77 is in the para-postion of the phenyl moiety; compounds of formula (38), wherein R 8 is hydrogen; and R7g is in the para-postion of the phenyl moiety.
The compounds of formula (1') Rf -(Zι)r- -YH- "(Z2)q- -R, , wherein
Ri and R2 each independently from each other are a residue of an organic dye;
Yi and Y2 independently from each other are Cι-Cιoalkylene;
Z and Z2 independently from each other are -C(O)-; -C2-Cι2alkenylene-; -(CH CH2-O)ι-5-; CrC1oalkylene(C5-C1oarylene); C5-C10arylene; C5-docycloalkylene, -C(O)O-, -OCO-; R, -N(Rg)-; — N— ; -CO (R4)-; -(R5)NC(O)-; -O- -S-; -S(O)-; or -S(O)2-; 4 R3. Ri and R5 are each independently from each other hydrogen; C -Cι4alkyl; C2-Cι alkenyl; C6-C10aryl; d-C5alkyl-C5-Cι0aryl; or-C5-CιoC5-Cι0aryl; r, q and n independently from each other are 0; or 1, if n is 0,
Z3 is hydrogen; and if n is 1 , Z3 is -S-; are novel and represent another subject of the present inventio.
The present invention also relates to the novel compounds of formulae (35), (36), (37) and (38).
Alkylene is generally CrC10alkylene, for example methylene, ethylene, propylene, isopropylene- n-butylene, sec-butylene, tert-butylene, n-pentylene, 2-pentylene 3-pentylene, 2,2,-dimethylpropylene, cyclopentylene, cyclohexylene, n-hexylene, n-octylene, "\,V,3,3'- tetramethylbutylene, 2-ethylhexylene, nonylene or decylene.
Alkylene may be straight-chain, branched, or, from C5alkyl upwards, monocyclic or polycyclic, and may be interrupted by hetero atoms, such as such as O, S, -CO-, N, NH, NR5 ,-OCO-. -CO(OR )-J -CONR-r, -(R5)NC(O)-; for example C Cι0alkylene may be a resisue such as: -CH2CH2-O-CH2CH2-O-CH2CH2- or -CH2CH2-O-CH2CH2- -CH2CH2-O-CH2-1 -CH2-O-CH2-- -CH2CH2-CH2CH2-O-CH2-CH2-, -CH2CH2-CH(N(CH3)2)-CH2-CH2-J CH2-NH2- CH2-CH2l or-CH2CH2-NH-CH2CH2-, -CH2CH2-NCH3-CH2CH2-, or -CO-CH2-, or -CH2CO-, or -CH2CH2-NHCO-CH2CH2-, or -CH2CH2-CONH-CH3-CH2CH2-, -CH2CH2-NCH3CO-CH2CH2-, or-CH2CH2-CONCH3-CH3-CH2CH2-, or-CH2-NHCO-CH2CH2-J or -CH2CH2-NHCO-CH2-, or -CH2CH2-CONH-CH2- or -CH2-CONH-CH2CH2-.
Arylene is generally C6-Cι0arylene; for example phenyl or naphthyl;
Aryl-alkylene is for example C5-doaryl-C -d0alkylene, Ce-Cioaryl-Ci-C-alkylene, alkyl-arylene is for example d-Cιoalkyl-C5-Cιoarylene or Cι-C2alkyl-C6-Cι0arylene.
Cβ-Ciocycloalkylene is for example cyclopentylene, cyclohexylene, morpholylene or piperidinylene.
In the present invention subsituents may be chosen from the following groups: hydroxyl, CrCι6alkyl- C5-C10aryl, d-dealkoxy, - COOH, sulfonic acid, sulfonylamino, -SR6o,
-OCO-, -COOFl,, -CONF 4, -(R5)NC(O), - S(O)-, -SO , cyanide, nitrile, halide, aryl, aralkyl, alkylaryl and NR54R55j wherein
R4, R5. R54. R55 and R6o have the same defintion and preferences as given above.
Cι-Cι6alkyl is for example, methyl, ethyl, propyl, isopropyl, n-butyl, sec-butyl, tert-butyl, n-pentyl, 2-pentyl, 3-pentyl, 2,2'-dimethyIpropylJ cyclopentyl, cyclohexyl, n-hexyl, n-octyl, l.l'.S.S'-tetramethylbutyl or 2-ethylhexyl, nonyl, decyl, undecy, dodecyl, tredecyl, tetradecyl, pentadecyl or haxadecly.
d-C6alkoxy is O-C C6alkyI, preferably O-Cι-C4alkyl.
C5-Cιoaryl-CrC10alkylene is, for example, phenyl-d-Cι0alkylene or naphthyl-Ci-Cioalkylene.
C6-d0aryl-CrC2alkylene and Cι-C2alkyl-C6-Cιoarylene are, for example, phenyl-Cι- Cι0alkylene or naphthyl-CrCι0alkylen.
Halide is, for example, fluoride, chloride, bromide or iodide, especially chloride and fluoride.
"Anion" denotes, for example, an organic or inorganic anion, such as halide, preferably chloride and fluoride, sulfate, hydrogen sulfate, phosphate, boron tetrafluoride, carbonate, bicarbonate, oxalate or d-C8alkyl sulfate, especially methyl sulfate or ethyl sulfate; anion also denotes lactate, formate, acetate, propionate or a complex anion, such as the zinc chloride double salt.
The anion is especially a halide, preferably chloride or fluoride, sulfate, hydrogen sulfate, methyl sulfate, ethyl sulfate, phosphate, formate, acetate or lactate.
The anion is more especially fluoride, chloride, methyl sulfate, ethyl sulfate, formate or acetate.
In the present invention protein disulfidisomerase (EC 5.3.4.1) is an enzyme of the enzym category EC 5.3.4.1. These enzymes preferably catalyse the ismerisation of intermolecular and intramolecular disulfid-bonds in proteinis. The EC (Enzyme commission) number is provided from the " Nomenclature Committee of the International Uniion of Biochemistry and Molecular Biology" (IUBMB). A complete list of the characertized enzymes of the enzymens categories according to IUBMB is provided by data base of SwissProt under http://www.expasv.ch.
In the present invention the residue of an organic dye is substituted or unsubstituted.
In the present invention biradical or radical of a heterocyclic compound is for example a biradical or radical of thiophenyl, 1,3-thiazolyl, 1,2-thiazolyl, 1,3-benzothiazolyl, 2,3- benzothiazolyl, imidazolyl, 1,3.4-thiadiazolyl, 1,3,5-thiadiazolyl, 1 ,3,4-triazolyl, pyrazolyl, benzimidazolyl, benzopyrazolyl, pyridinyl, quinolinyl, pyrimidinyl and isoxazolyl.
Preferred biradical or radical of a heterocyclic compound is for example 1,3-thiazolyl, 1,2- thiazolyl, 1,3-benzothiazolyl, 2,3-benzothiazolyl, imidazolyl, 1,3,4-thiadiazolyl, 1,3,5- thiadiazolyl, 1,3,4-triazolyl, pyrazolyl, benzimidazolyl, benzopyrazolyl, pyridinyl, quinolinyl, pyrimidinyl and isoxazolyl. More preferred cationic heterocyclic compounds are imidazolyl, pyridinyl, 1,3,4-triazolyl and 1,3-thiazolyl.
In the present invention a biradical or radical of an aromatic compound is for example phenyl, naphthyl, thiophenyl, 1,3-thiazolyl, 1,2-thiazolyl, 1,3-benzothiazolyl, 2,3-benzothiazolyl, imidazolyl, 1 ,3,4-thiadiazolyl, 1,3,5-thiadiazolyl, 1,3,4-triazolyl, pyrazolyl, benzimidazolyl, benzopyrazolyl, pyridinyl, quinolinyl, pyrimidinyl and isoxazolyl, aminodiphenyl, aminodiphenylether or azobenzenyl. The biradical or radical of a heterocyclic or aromatic compound is unsubstituted or mono- or poly-substituted, for example by d-C4alkyl, Cι-C alkoxy, Cι-C alkylthio, halogen, e.g. fluorine, bromine or chlorine, nitro, trifluoromethyl, CN, SCN, Cι-C4alkylsulfonyl, phenylsulfonyl, benzylsulfonyl, di-Cι-C4alkylaminosulfonyl, d-C alkyl-carbonylamino, C C4alkoxysulfonyl or by di-(hydroxy-Cι-C4alkyl)-aminosulfonyl.
A further emodiment of the present inveintion relates to processes for the preparation of the dyes of formula (1).
Generally, the process-comprises a nucleophilic substitution of an organic compound by a sulfide and/or disulfide derivative containing at least one nucleophil group, or a electrophilic substitution of an organic compound by a sulfid and/or disulfid derivative containing at least one electrophilic groups.
A preferred process for the preparation comprises reacting a compound of formula (1a) with the compound of formula (1b) according to the following reaction scheme:
(1a) H-(Z1)rY-S-Z3J-Y2-(Z2)q-R2 + (1b) RrL (D-
A further preferred process for the preparation of compounds of formula (1) comprises reacting a compound of formula (1c) with the compound of formula (1d) according to the following reaction scheme:
Figure imgf000017_0001
In the formula (1a), (1b), (1c) and (1d)
Li is a leaving group; and
RL R2, Zi, Z2, Z3, YI, Y2) r, q and n are defined as in formula (1).
The reaction is generally initiated by contacting; for example by mixing together the starting compounds or by dropwise addition of one starting compound to the other. Customary, the temperature is in the range of 273 to 300 K, preferably is in the range of 290 to 300 K during the mixing of the starting compounds.
The reaction time is generally dependent on the reactivity of the starting compounds, on the reaction temperature chosen and on the desired conversion. The chosen duration of reaction is usually in the range from one hour to three days.
The reaction temperature for the reaction of the compounds is advisable to select in the range from 273 to 340K, especially in the range from 273 to 335K.
The reaction pressure chosen is generally in the range from 70 kPa to 10 MPa, especially from 90 kPa to 5 MPa, and is more especially atmospheric pressure.
It may by desirable to conduct the reaction of compounds in the presence of a catalyst.
The molar ratio of compound of formula (1a) to the catalyst is generally selected in the range from 10:1 to 1 :5, especially in the range from 10:1 to 1 :1.
Suitable catalysts are for example an alkali metal Cι-C6alkyloxide, such as sodium-, potassium or lithium d-C6alkyloxide, preferably sodium methoxide, potassium methoxide or lithium methoxide, or sodium ethoxide, potassium ethoxide or lithium ethoxide; or tertiary amines, for example, such as chinuclidine, N-methylpiperidine, pyridine, trimethylamine, triethylamine, trioctylamine, 1,4-diazabicyclo[2.2.2]octan, chinuclidine, N-methylpiperidine; or alkalimetal acetate, for example such as sodium acetate, potassium acetate, or lithium acetate.
Preferred are potassium acetate, sodium methoxide, pyridine and 1 ,4-diazabicyclo[2.2.2]- octan.
In addition, the reaction may be carried out with or without a solvent, but is preferably carried out in the presence of a solvent, preferably organic solvents or solvent mixtures.
Solvents are organic solvents and water, or a mixture of organic solvents or a mixture of organic solvents and water. Organic solvents are for example, protic or aprotic polar organic solvents, such as alcohols, for example methanol, ethanol, n-propanol, isopropanol, butanol or glycols, especially isopropanol, or nitrile, such as acetonitrile or propionitrile, or amide, such as dimethylformamide, di- methylacetamide or N-methylpyridine, N-methylpyrolidon, or sulfoxide, such as dimethylsul- foxide, or mixtures thereof.
The product prepared according to the process of the present invention may be advantageously worked up and isolated, and if desired be purified.
Customary, the work up starts by decreasing the temperature of the reaction mixture in the range from 280 to 300 K, especially in the range from 290 to 300 K.
It may be of advantageous to decrease the temperature slowly, over a period of several hours.
In general, the reaction product is usually filtered and then washed with water or a salt solution and subsequently dried.
Filtration is normally carried out in standard filtering equipment, for example Bϋchner funnels, filter presses, pressurised suction filters, preferably in vacuo.
The temperature for the drying is dependent on the pressure applied. Drying is usually carried out in vacuo at 50-200 mbar.
The drying is usually carried out at a temperature in the range from 313 to 363 K, especially from 323 to 353 K, and more especially in the range from 328 to 348 K.
Advantageously the product is purified by recrystallisation after isolation.
Organic solvents and solvent mixtures are suitable for the recrystallisation, preferably alcohols, for example methanol, ethanol, 2-propanol or butanol, especially 2-propanol. The present invention also relates to a process for the preparation of compounds of formula
(70) > which comprises
Figure imgf000020_0001
a. acylating of 4-fluoro-3-nitroaniIine with an acylating agent as shown in the above formula b. hen reducing the nitro group to the amino group, c. then diazotizing the acylated 4-Fluoro-3-amino-aniline, and d. then coupling the diazotized with imidazole, and e. then alk lating the intermediate compound with an alkylating agent; or ai) diazotizing and coupling of a compound of formula, and then
b ) alkylating the intermediate compound with an alkylating agent ■ wherein
Figure imgf000020_0002
R68 is hydrogen, unsubstituted or substituted C Cι4alkyl, C2-d4alkenyl, -C5-Cιoarylen-(d- Cioalkyl),
Figure imgf000020_0003
C5-Cι0aryl,
The acylation, reduction, diazotation, coupling and alkylation can be conducted by methods known per se.
The dyes of formula (1) according to the invention are suitable for dyeing organic materials, such as keratin-containing fibers, wool, leather, silk, cellulose or polyamides, cotton or nylon, and preferably human hair. The dyeings obtained are distinguished by their depth of shade and their good fastness properties to washing, such as, for example, fastness to light, shampooing and rubbing. The stability, in particular the storage stability of the dyes according to the invention sre excellent.
The multiplicity of shades of the dyes can be increased by combination with other dyes.
Therefore the dyes of formula (1 ) of the present invention may be combined with dyes of the same or other classes of dyes, especially with direct dyes, oxidation dyes; dye precursor combinations of a coupler compound as well as a diazotized compound, or a capped diazotized compound; and/or cationic reactive dyes.
Direct dyes are of natural origin or may be prepared synthetically. They are uncharged, cationic or anionic, such as acid dyes.
The dyes of formula (1) may be used in combination with at least one single direct dye different from the dyes of formula (1).
Examples of direct dyes are described in "Dermatology", edited by Ch. Culnan, H. Maibach, Verlag Marcel Dekker Inc., New York, Basle, 1986, Vol. 7, Ch. Zviak, The Science of Hair Care, chapter 7, p. 248-250, and in "Europaisches Inventar der Kosmetikrohstoffe", 1996, published by The European Commission, obtainable in diskette form from the Bundesver- band der deutschen Industrie- und Handelsunternehmen fur Arzneimittel, Reformwaren und Kόrperpflegemittel e.V., Mannheim.
Furthermore, cationic nitroaniline and anthraquinone dyes are useful for a combination with a dye of formula (1).
The dyes of formula (1 ) may also be combined with acid dyes, for example the dyes which are known from the international names (Color index), or trade names.
These acid dyes may be used either as single component or in any combination thereof.
The dyes of formula (1) may also be combined with uncharged dyes, for example selected from the group of the nitroanilines, nitrophenylenediamines, nitroaminophenols. anthra- quinones, indophenols, phenazines, phenothiazines, bispyrazolons, bispyrazol aza derivatives and methines.
Furthermore, the dyes of formula (1) may also be used in combination with oxidation dye systems.
Oxidation dyes, which, in the initial state, are not dyes but dye precursors are classified according to their chemical properties into developer and coupler compounds. Suitable oxidation dyes are descri ed for example in
- DE 19959479, especially in col 2, 1. 6 to col 3, 1. 11 ; "Dermatology", edited by Ch. Culnan, H. Maibach, Verlag Marcel Dekker Inc., New York, Basle, 1986, Vol. 7, Ch. Zviak , The Science of Hair Care, chapter 8, on p. 264 - 267 (oxidation dyes).
Preferred developer compounds are for example primary aromatic amines, which are substituted in the para- or ortho- position with a substituted or unsubstituted hydroxy- or amino residue, or diaminopyridine derivatives, heterocyclic hydrazones, 4-aminopyrazol derivatives or 2,4,5,6-tetraaminopyrimidine derivatives.
Furthermore, developer compounds in their physiological compatible acid addition salt form, such as hydrochloride or sulfate can be used. Developer compounds, which have aromatic OH radicals are also suitable in their salt form together with a base, such as alkali metal- phenolates.
Preferred developer compounds are disclosed in DE 19959479, p. 2, 1. 8 - 29.
Preferred coupler compounds are m-phenylendiamine derivatives, naphthole, resorcine and resorcine derivatives, pyrazolone and m-aminophenol derivatives, and most preferably the coupler compounds disclosed in DE 19959479, p.1, 1. 33 to p. 3, 1. 11.
Furthermore, autooxidizable compounds may be used in combination with the dyes of formula (1 ).
Autooxidizable compounds are aromatic compounds with more than two substituents in the aomatic ring, which have a very low redox potential and will therefore be oxidized when exposed to the air. The dyeings obtained with these compounds are very stable and resistant to schampoo.
Autooxidizable compounds are for example benzene, indol, or indol, especially 5,6- dihydroxyindol or 5,6-dihydroxyindol. The dyes of formula (1) may also be used in combination with naturally occurring dyes, such ashenna red, henna neutral, henna black, camomile blossom, sandalwood, black tea, Rhamnus frangula bark, sage, campeche wood, madder root, catechu, sedre and alkanet root.
Furthermore, the dyes of formula (1) may also be used in combination with capped diazotised compounds.
Suitable diazotised compounds are for example the compounds of formulae (1) - (4) in WO 2004/019897 (bridging gages 1 and 2) and the corresponding watersoluble coupling components (I) -(IV) as disclosed in the same reference on p. 3 to
Further preferred dyes or dye combinations which are useful for the combination with a dye of formula (1) according to the present invention are described in
(DC-01): WO 95/01772, wherein mixtures of at least two cationic dyes are disclosed, especially p. 2, 1. 7 to p. 4, 1. 1, preferably p.4, 1. 35 to p. 8, 1. 21 ; formulations p. 11, last § - p. 28, 1. 19; (DC-02): US 6,843,256, wherein cationic dyes are disclosed, especially the compounds of formulae (1), (2), (3) and (4) (col. 1, 1. 27 - col. 3, 1. 20, and preferably the compounds as prepared in the examples 1 to 4 (col. 10, 1.42 to col. 13, 1.37; formulations col. 13, 1. 38 to col. 15, 1. 8; (DC-03): EP 970685, wherein direct dyes are described, especially p. 2, 1.44 to p. 9, 1. 56 and preferably p. 9, 1. 58 to p. 48, 1. 12; processes for dyeing of keratin-containing fibers especially p. 50, 1. 15 to 43; formulations p. 50, 1.46 to p.51, 1.40; (DC-04): DE-A-19713698, wherein direct dyes are described, especially p. 2, 1. 61 to p. 3, 1. 43; formulations p. 5, 1. 26 to 60; (DC-05): US 6,368,360, wherein directd dyes (col.4, 1. 1 to col.6, 1. 31) and oxidizing agents (col. 6, 1. 37 -39) are disclosed; formulations col. 7, 1.47 to col. 9, 1.4; (DC-06): EP 1 166752, wherein cationic dyes (p. 3, 1. 22 - p. 4, 1. 15) and anionic UV- absorbers (p.4, 1. 27 - 30) are disclosed; formulations p. 7, 1. 50 - p. 9, 1. 56; (DC-07): EP 998,908, wherein oxidation dyeings comprising a cationic direct dye and pyra- zolo-[1,5-a]-pyrimidines (p. 2, 1.48 - p.4, 1. 1) are disclosed; dyeing formulations p.47, I. 25 to p. 50, 1. 29; (DC-08): FR-2788432, wherein combinations of cationic dyes with Arianors are disclosed, especially p. 53, 1. 1 to p. 63, 1. 23, more especially p . 51 to 52, most especially Basic Brown 17, Basic brown 16, Basic Red 76 and Basic Red 118, and/or at least one Basic Yellow 57, and/or at least one Basic Blue 99; or com binations of arianoren and/or oxidative dyes, especially p. 2, 1. 16 to p. 3, 1. 16; dyeing formulations on p. 53, 1. 1 to p.63, 1. 23;
(DC-09): DE-A-19713 698, wherein the combinations of direct dyes and permanent-wave fixing comprising an oxidation agent, an oxidation dye and a direct dye are disclosed; especially p.4, 1. 65 to p. 5, 1. 59;
(DC-10): EP 850638, wherein developer compounds and oxidizing agents are disclosed; especially p. 2, 1. 27 to p. 7, 1. 46 and preferably p. 7, I. 20 to p. 9, 1. 26; dyeing formulations p. 2, 1. 3-12 and I. 30 to p. 14, and p.28, 1. 35 - p. 30, 1. 20; preferably p. 30, I. 25 - p. 32, 1. 30;
(DC-11): US 6,190,421 wherein extemporaneous mixtures of a composition (A) containing one or more oxidation dye precursors and optionally one or more couplers, of a composition (B), in powder form, containing one or more direct dyes (col.5, 1. 40 - col. 7, 1. 14), optionally dispersed in an organic pulverulent excipient and/or a mineral pulverulent excipient, and a composition (C) contain! ng one or more oxidizing agents are disclosed; formulations col. 8, 1. 60 - col. 9, 1. 56;
(DC-12): US 6,228,129, wherein a ready-to-use composition comprising at least one oxidation base, at least one cationic direct dye and at least one enzyme of the 2-electron oxidoreductase type in the presence of at least one donor for the said enzyme are disclosed; especially col. 8, 1. 17 - col. 13, 1. 65; dyei ng formulations in col. 2, 1. 16 to col. 25, 1. 55, a multi-compartment dyeing device is described in col. 26, 1. 13 - 24;
(DC-13): WO 99/20235, wherein compositions of at least one cationic dye and at least one nitrated benzene dye with cationic direct dyes and nitro benzene direct dyes are described; on p. 2, 1. 1 to p. 7, 1. 9, and p. 39, 1. 1 to p. 40 1. 11, preferably p. 8, 1. 12 to p. 25 I. 6, p. 26, 1. 7 to p. 30, 1. 15; p. 1, 1. 25 to p. 8, 1. 53 p. 30, 1. 17 to p. 34 I. 25, p. 8, 1. 12 to p. 25 I. 6, p. 35, 1. 21 to 27, especially on p. 36, 1. 1 to p. 37;
(DC-14): WO 99/20234, wherein compositions comprising at least one direct cationic dye and at least one autooxidisable dye, especially benzene, indol and indol. derivatives are described, preferably direct dyes on p. 2, 1. 19 to p.26, 1.4, and autooxidisable dyes as dislosed especially on p.26, 1. 10 to p. 28, 1. 15; dyeing formulations especially on p. 34, I. 5 to p. 35, li 18; (DC-15): EP 850636, wherein oxidation dyeing compositions comprising at least one direct dye and at least one meta-aminophenol derivative as coupler component and at least one developer compound and an oxidizing agent are disclosed, especially p. 5, 1.41 to p. 7, 1. 52, dyeing formulations p. 19, 1. 50 - p. 22, 1. 12;
(DC-16): EP-A-850637, wherein oxidation dyeing compositions comprising at least one oxidation base selected from para-phenylenediamines and bis(phenyl)alkylenediamines, and the acid-addition salts thereof, at least one coupler selected from meta-diphenols, and the acid-addition salts thereof, at least one cationic direct dye, and at least one oxidizing agent are disclosed, especially p. 6, 1.50 to p.8, 1.44 are discloseded; dyeing formulations p. 21, 1. 30 - p. 22, 1. 57;
(DC-17): WO 99/48856, wherein oxidation dyeing compositions comprising cationic couplers are disclosed, especially p. 9, 1. 16 - p. 13, 1. 8, and p. 11, 1. 20 - p. 12, 1. 13; dyeing formulations p. 36, 1. 7- p. 39, 1.24;
(DC-18): DE 197 172 24, wherein dyeing agents comprising unsaturated aldehydes and coupler compounds and primary and secondary amino group compounds, nitrogen- containing heterocyclic compounds, amino acids, oligopeptids, aromatic hydroxy compounds, and/or at least one CH-active compound are disclosed p. 3, 1.42 - p. 5 I. 25; dyeing formulations p. 8, 1. 25 - p. 9, 1. 61.
In the dye combinations disclosed in the references (DC-01 - DC-18) above, the dyes of formula (1) according to the present invention may be added to the dye combinations or dyeing formulations or may be replaced with at least one dye of formula (1).
The present invention also releates to formulations, which are used for the dyeing of organic materials, preferably keratin-containing fibers, and most preferably human hair, comprising at least one dye of formula (1).
Preferably the dyes of formula (1) are incorporated into the composition for treating organic material, preferably for dyeing in amounts of 0.001 - 5% b.w. (hereinafter indicated merely by "%"), particularly 0.005 - 4%, more particularly 0.2 - 3%, based on the total weight of the composition.
The formulations may be applied on the keratin-containing fiber, preferably the human hair in different technical forms. Technical forms of formulations are for example a solution, especially a thickened aqueous or aqueous alcoholic solution, a cream, foam, shampoo, powder, gel, or emulsion.
Customary the dyeing compositions are applied to the keratin-containing fiber in an amount of 50 to 100 g.
Preferred forms of formulations are ready-to-use compositions or multi-compartment dyeing devices or 'kits' or any of the multi-compartment packaging systems with compartments as described for example in US 6,190,421, col 2, 1. 16 to 31.
The pH value of the ready-to-use dyeing compositions is usually from 2 to 11 , preferably from 5 to 10.
One preferred embodiment of the present invention relates to the formulation of dyes, wherein the dyes of formula (1) are in powder form.
Powder formulations are preferably used if stability and/or solubility problems as for example described in DE 197 13698, p. 2, 1.26 to 54 and p. 3, 1. 51 to p.4, 1. 25, and p. 4, 1.41 to p. 5 I. 59.
Suitable cosmetic hair-care formulations are hair-treatment preparations, e.g. hair-washing preparations in the form of shampoos and conditioners, hair-care preparations, e.g. pre- treatment preparations or leave-on products such as sprays, creams, Qels, lotions, mousses and oils, hair tonics, styling creams, styling gels, pomades, hair rinses, treatment packs, intensive hair treatments, hair-structuring preparations, e.g. hair-waving preparations for permanent waves (hot wave, mild wave, cold wave), hair-straightening preparations, liquid hair- setting preparations, hair foams, hairsprays, bleaching preparations, e.g. hydrogen peroxide solutions, lightening shampoos, bleaching creams, bleaching powders, bleaching pastes or oils, temporary, semi-permanent or permanent hair colorants, preparations containing self- oxidizing dyes, or natural hair colorants, such as henna or camomile.
For use on human hair, the dyeing compositions of the present invention can usually be incorporated into an aqueous cosmetic carrier. Suitable aqueous cosmetic carriers include, for example W/O, O/W, O/W/O, W/O/W or PIT emulsions and all kinds of microemulsions-, creams, sprays, emulsions, gels, powders and also surfactant-containing foaming solutions, e.g. shampoos or other preparations, that are suitable for use on keratin-containing fibers. Such forms of use are described in detail in Research Disclosure 42448 (August 1999). IF necessary, it is also possible to incorporate the dyeing compositions into anhydrous carriers, as described, for example, in US-3369970, especially col 1, 1. 70 to col 3, 1. 55. The dyei ng compositions according to the invention are also excellently suitable for the dyeing method described in DE-A-3 829870 using a dyeing comb or a dyeing brush.
The constituents of the aqueous carrier are present in the dyeing compositions of the present invention in the customary amounts, for example emulsifiers may be present in the dyeing compositions in concentrations of from 0.5 to 30 % b.w. and thickeners in concentrations ef from 0.1 to 25 % b.w. of the total dyeing composition.
Further carriers for dying compositions are for example described in "Dermatology", edited by Ch. Culnan, H. Maibach, Veriag Marcel Dekker Inc., New York, Basle, 1986, Vol. 7, Cln. Zviak, The Science of Hair Care, chapter 7, p. 248-250, especially on p. 243, 1. 1 to p. 24*4, 1. 12.
The dyes of formula (1) may be stored in a liquid to paste-like preparation (aqueous or non- aqueous) or in the form of a dry powder.
When the dyes and adjuvants are stored together in a liquid preparation, the preparation should be substantially anhydrous in order to reduce reaction of the compounds.
The dyeing compositions according to the invention may comprise any active ingredients „ additives or adjuvants known for such preparations, like surfactants, solvents, bases, acids, perfumes, polymeric adjuvants, thickeners and light stabilisers.
The following adjuavents are preferably used in the hair dyeing compositions of the present invention: non-ionic polymers, cationic polymers, acrylamide/dimethyldiallylammonium chloride copolymers, quaternised polyvinyl alcohol, zwitterionic and amphoteric polymers . anionic polymers, thickeners, structuring agents, hair-conditioning compounds, protein hydrolysates, perfume oils, dimethyl isosorbitol and cyclodextrins, solubilisers, anti-dandruff active ingredients, substances for adjusting the pH value; panthenol, pantothenic acid, allantoin, pyrrolidonecarboxylic acids and salts thereof, plant extracts and vitamins; cholesterol; light stabilisers and UV absorbers, consistency regulators, fats and waxes, fatty alkanolamides, polyethylene glycols and polypropylene glycols, complexing agents, swelling and penetration substances, opacifiers, such as latex; pearlising agents, propellants, antioxidants; sugar-containing polymers,quatemary ammonium salts, or bacteria inhibiting agents,.
The dyeing compositions according to the present invention generally comprise at least one surfactant. Suitable surfactants are zwitterionic or ampholytic, or more preferably anionic, non-ionic and/or cationic surfactants.
Suitable anionic surfactants are characterised by an anionic group that imparts water solubility, for example a carboxylate, sulfate, sulfonate or phosphate group, and a lipophilic alkyl group having approximately 10 to 22 carbon atoms. In addition, glycol or polyglycol ether groups, ester, ether and amide groups and also hydroxy groups may be present in t-he molecule.
Preferred anionic surfactants are alkyl sulfates, alkyl polyglycol ether sulfates and ether carboxylic acids having 10 to 18 carbon atoms in the alkyl group and up to 12 glycol ether groups in the molecule, and also especially salts of saturated and especially unsaturated C8-C22carboxylic acids, such as oleic acid, stearic acid, isostearic acid and palmitic acid.
Surface-active compounds that carry at least one quaternary ammonium group and at least one -COO" or -SO3 " group in the molecule are terminated zwitterionic surfactants. Prefere nee is given the so-called betaines, such as the N-alkylN.N-dimethylammonium glycinates, for example cocoalkyldimethylammonium glycinate, N-acylaminopropyl-N,N-dimethylammonium glycinates, for example cocoacylaminopropyldimethylammonium glycinate, and 2-alkyl-3- carboxymethyl-3-hydroxyethylimidazol. having from 8 to 18 carbon atoms in the alkyl or acyl group and also cocoacylaminoethylhydroxyethylcarboxymethyl glycinate. A preferred zwitterionic surfactant is the fatty acid amide derivative known by the CTFA name cocoamidopropyl betaine. Ampholytic surfactants are surface-active compounds that, in addition to a C8-Cι8-alkyl or - acyl group and contain at least one free amino group and at least one -COOH or -SO3H group in the molecule and are capable of forming internal salts. Examples of suitable ampholytic surfactants include N-alkylglycines, N-alkylpropionic acids, N-alkylaminobutyric acids, N-alkyliminodipropionic acids, N-hydroxyethyl-N-alkylamidopropylglycines, N-alkyltaurines, N-alkylsarcosines, 2-alkylaminopropionic acids and alkylaminoacetic acids, each having approximately from 8 to 18 carbon atoms in the alkyl group. Ampholytic surfactants to which special preference is given are N-cocoalkylaminopropionate, cocoacylaminoethylaminopropionate and C 2-Cι8acylsarcosine.
Suitable non-ionic surfactants are described in WO 00/10519, especially p.45, 1. 11 to p. 50, I. 12. Non-ionic surfactants contain as hydrophilic group, for example, a polyol group, a polyalkylene glycol ether group or a combination of polyol and polyglycol ether groups.
Examples of cationic surfactants that can be used in the dyeing compositions according to the invention are especially quaternary ammonium compounds. Alkylamidoamines, especially fatty acid amidoamines, such as the stearylamidopropyl- dimethylamine obtainable under the name Tego Amid® 18 are alos proffered as surfactants in the present dyeing compositions. They are distinguished not only by a good conditioning action but also especially by their good biodegradability.
A further preferred embodiment of the present invention relates to a method of treating keratin-containig fibers with sulfide dyes of formula (1).
The method comprises treating the hair in the presence of a reduction agent.
Preferred reduction agents are for example thioglycol acid or salts therof, gycerine monothioglycolat, cystein, 2-mercaptopropionic acid, 2-mercaptoethylamine, thiolactic acid, thioglycerine, sodium sulfite, dithionithe, ammonium sulfite, sodium bisulfite, sodium metabisulfite or hydrochinon.
In addition, the present invention relates to a method of a. treating the keratin-containing fibers with a compound of formula (1 ), b. wearing the coloured hair for the desired period of time, c. removing the colour applied in step a) from hair by contacting the hair with an aqueous based colour removal composition containg a reduction agent capable of disrupting the - S-S-bonds between the dye molecule and the hair fiber surface to cause the dye molcule to become disassociated from the hair fiber.
Further, the present invention concerns a process, comprising treating the hair with a. a reduction agent, and b. at least a single sulfide dye of formula (1 ) as defined above, and optionally c. with an oxidizing agent.
The sequence of the reaction steps is generally not important, the reduction agent can be applied first or in a final step.
Preferred is a process, which comprises treating the hair a ) with at least one single dye of formula (1 ), and bi) then with a reduction agent; or a process, which comprises contacting hair a2) with a reduction agent and b2) then with at least one single sulfide dye of formula (1) as defined above.
In the present invention preferred is further a process, which comprises contacting hair a) with a reduction agent, b) then with at least one dye of formula (1), and c) then with an oxidizing agent.
A further process of the present invention comprises contacting hair a) with at least one single dye of formula (1), and b) then with a reduction agent, and c) then with an oxidizing agent.
Usally, the oxidizing agent is applied together with an acid or a base.
The acid is for example citric acid, phosphoric acid or tartrate acid.
The base is for example sodium hydroxide, ammonia or monoethanolamine. Usually, the dyeing compositions are applied to the keratin-containg fiber in an amount of from 50 to 100 g.
The dyes of formula (1) are suitable for all-over dyeing of the hair, that is to say when dyeing the hair on a first occasion, and also for re-dyeing subsequently, or dyeing of locks or parts of the hair.
The dyes of formula (1 ) are applied to on the hair for example by massage with the hand, a comb, a brush, or a bottle, or a bottle, which is combined with a comb or a nozzle.
In the processes for dyeing according to the invention, whether or not dyeing is to be carried out in the presence of a further dye will depend upon the color shade to be obtained.
Further preferred is a process for dyeing keratin-containing fibers which comprises treating the keratin-containing fiber with at least one dye of formula (1 ), a base and an oxidizing agent.
The oxidation dyeing process usually involves lightening, that is to say that it involves applying to the keratin-containing fibers, at basic pH, a mixture of bases and aqueous hydrogen peroxide solution, leaving the applied mixture to stand on the hair and then rinsing the hair. It allows, particularly in the case of hair dyeing, the melanin to be lightened and the hair to be dyed.
In general, the oxidizing agent containing composition is left on the fiber for 0 to 15 minutes, in particular for 0 to 5 minutes at 15 to 45°C, usually in amounts of 30 to 200 g.
Oxidizing agents are for example persulfate or dilute hydrogen peroxide solutions, hydrogen peroxide emulsions or hydrogen peroxide gels, alkal. earth metal peroxides, organic peroxides, such as urea peroxides, melamine peroxides, or alkalimetalbromat fixations are also applicable if a shading powder on the basis of semi-permanent, direct hair dyes is used. Most preferred oxidizing agent is hydrogen peroxide, preferably used in a concentration from about 2 to 30 %, more preferably about 3 to 20% by, and most preferably from 6 to 12% b.w. the corresponding composition.
The oxidizing agents may be present in the dyeing compositions according to the invention preferably in an amount from 0.01 % to 6 %, especially from 0.01 % to 1 %, based on the total dyeing composition.
In general, the dyeing with an oxidative agent is carried out in the presence of a base, for example ammonia, alkali metal carbonates, earth metal (potassium or lithium) carbonates, alkanol amines, such as mono-, di- or triethanolamine, alkali metal (sodium) hydroxides, earth metal hydroxides or compounds of the formula
, wherein
Figure imgf000032_0001
R is a propylene residue, which may be substituted with OH or d-C alkyl,
R3, R^ R5 and R6 are independently or dependently from each other hydrogen, d-C alkyl or hydroxy-(Cι -C )al kyl .
The pH-value of the oxidizing agent containing composition is usually about 2 to 7, and in particular about 2 to 5.
One preferred method of applying formulations comprising the dyes of formula (1) on the keratin-containing fiber, preferably the hair is by using a multi-compartment dyeing device or "kit" or any other multi-compartment packaging system, as described for example in WO 97/20545 on p. 4, 1. 19 to I. 27.
Furthermore, the present invention relates to a process of dyeing of keratin-containig fibers of the dyes of formula (1) with autooxidable compounds and optionally further dyes.
Furthermore, the present invention relates to a process for dyeing keratin-containig fibers with the dyes of formula (1) and at least one acid dye. The following Examples serve to illustrate the processes for dyeing without limiting the processes thereto. Unless specified otherwise, parts and percentages relate to weight. The amounts of dye specified are relative to the material being coloured. T, s, d, q and J, wherein t is a triplett, s is singulett, d is duplett, q is a quartett, and J is a coupling constant, define the NMRspectra values.
Examples A - Process of Preparation Example A1
Figure imgf000034_0001
12.4 g 4-fluoroanilin are added to a stirred solution of 25 ml water and 25 ml of 32% hydrochloric acid at 295 K. The reaction mixture is cooled to 273 K and 19 ml of a 36% sodium nitrite solution are dropped at such a rate that the temperature of the mixture is maintained in the range of 273 to 276 K. After the addition of the sodium nitrite solution the mixture is stirred for one hour. If no excess of nitrite is detected during one hour (detection by using a potassium iodide paper) further sodium nitrite solution is added. The remaining excess of nitrite is reduced with sulfamic acid. The obtained diazo solution is dropped to a 273 K cold solution of 7.4 g imidazole in 30 ml water, whereby the pH of the solution is maintained in the range of pH 10 to 11 by adding 36% of asodium hydroxide solution. After completing the diazo addition the obtained suspension is warmed up to 295 K, the pH is adjusted to 10.5 with 36% sodium hydroxide solution. After stirring for one hour at this pH and temperature the suspension is filtered off and washed twice with 50 ml water to obtain 55 g of a humid product, which is suspended in 200 ml water and 3 weight equivalents dimethyl sulfate and sodium hydroxide are simultaneously added for maintaining the pH at 10-10.3 and the temperature at 298-303K.
The reaction is allowed to stand for one more hour to finish the hydrolysis of excess of dimethyl sulfate.
100 g sodium chloride and 50 g potassium chloride are added at 273K and allowed to stand for 16 hours. The product is separated by filtration and washed with a cold solution of sodium /potassium chloride. About 20g of the compound of formula
Figure imgf000034_0002
are obtained 6.9 g of cisteamine dihydrochloride are added at 293 K under nitrogen atmosphere to 20 g of the compound of formula (101a) in 120g isopropanol and 24 g triethylamine. The temperature is raised to 333 K and the reaction mixture is stirred at this temperature during 25 hours. The reaction mass is stirred for 4 hours while the temperature is decreased to 295 K. The reaction mass is filtered off and the filter residue washed with 45 ml of isopropanol and again filtered.300 ml water are added to the humid filter residue and the mixture is stirred for 3 hours at 353 K. Then the temperature is decreased to 295 K and the mixture filtered off. The filter residue is washed with 100 ml water, filtered and dried in vacuum to obtain 16 g of compound of formula (101).
1H-NMR Data in deuterated methanol (128 scans)/ 360MHz:
Figure imgf000035_0002
Example A2
Figure imgf000035_0001
12.4 g 2-fluoroanilin are added to a stirred solution of 25 ml water and 25 ml of 32% hydrochloric acid at 295 K. The reaction mixture is cooled to 273 K and 19 ml 36% sodium nitrite solution are dropped at such a rate that the temperature of the mixture is maintained in the range of 273 to 276 K. After the addition of the sodium nitrite solution the mixture is stirred for one hour. If no excess of nitrite is detected during one hour (detection by using a potassium iodide/starch paper) further amounts of sodium nitrite solution are added. Then the remaining excess of nitrite is destroyed with sulfamic acid. The obtained diazo solution is dropped to a 273 K cold solution of 7.4 g imidazole in 30 ml water, whereby the pH of the solution is maintained in the range of pH 10 to 11 by adding 36% sodium hydroxide solution. After completing the diazo addition the obtained suspension is warmed up to 295 K and the pH is adjusted to 10.5 with 36% sodium hydroxide solution. After stirring for one hour at this pH and temperature the suspension is filtered off and then washed twice with 50 ml water to obtain 55 g of the humid product, which is suspended in 500 ml water. 0.3 mol dimethyl sulfate and sodium hydroxide are simoultaniously added for maintaining the pH in the range of 10-10.3 and the temperature at 298-3O3K. The reaction mixture is hold for one hour. Then the water is evaporated. About 40 g humid solid, which gives 27 g of dryed product of the formula
Figure imgf000036_0001
is obtained
The product is characterized by1H-NMR Data in deuterated methanol (128 scans)/ 360MHz:
Figure imgf000036_0002
11g cisteamin chlorohydrate are added to 27g of compound of formula (102a) in 20 g triethylamine and 120g isopropanol under nitrogen atmosphere at 293 K, .The temperature is raised to 333 K. The reaction mixture is stirred for 28 hours at this temperature. Then the reaction mass is stirred for 4 hours while the temperature is decreased to 295 K. The reaction mass is filtered off and the filter residue washed with 45 ml isopropanol and dried in vacuum to obtain 17.6 g of product f formula (102).
The product is characterized by 1H-NMR Data in deuterated methanol (128 scans)/ 360MHz:
Figure imgf000036_0003
Example A3
Figure imgf000037_0001
100 g 4-fluoro-3nitroanilin are added to a stirred mass of 80 g methanol and heated to 333 K. 0.1 ml sulfuric acid and 90 ml of acetic anhydride are added during 15 minutes. Heating and boiling are continued for 15 minutes. Then the reaction mixture is cooled slowly to 273 K with stirring. At the final temperature stirring is continued for 30 minutes, then the suspension is filtered off, washed with cold methanol, dryed in the vacuum dryer getting 114 g acetyl derivative which is worked up further. The acetyl derivative is solved in 520 ml ethanol and continuously added to 130 g iron in 35 ml concentrated hydrochloric acid and 220 ml water at 363K during 1 hour. The temperature drops to 353 K. The reaction mixture is stirred for further 3 hours. The hot mass is separated through filtration the residue washed with 100 ml ethanol. The filtrate and wash solution are cooled to 380 K with mixing, when cristallization of the product takes place. The product is separated by filtration, washed with cold ethanol and dryed in a vacuum dryer.
The dried material is dissolved in 132 ml water and 110 ml of 32% hydrochloric acid at 295 K. The reaction mixture is cooled to 273 K and 86.4 g 36% sodium nitrite solution are dropped at such a rate that the temperature of the mixture is maintained in the range of 273 to 276 K. The mixture is further stirred for one hour. If no excess of nitrite is detected during one hour (detection by using a potassium iodide/starch paper) further amounts of sodium nitrite solution are added. After this one hour the remaining excess of nitrite is destroyed with sulfamic acid. Then the obtained diazo solution is dropped to a 273 K cold solution of 33.4 g imidazole in 130 ml water, whereby the pH of the solution is maintained in the range of pH 10 to 11 by adding 36% of a sodium hydroxide solution. After completing the diazo addition, the obtained suspension is warmed up to 295 K and the pH is adjusted to 10.5 with 36% sodium hydroxide solution. After stirring for one hour at this pH and temperature the suspension is filtered off and then washed twice with 100 ml water to obtain 200 g of the humid product. The filtercake from the previouse step is suspended in water and 3 weight equivalents dimethylsulfate and sodium hydroxide are simultaniously added for maintaining the pH in the range of 10-10.3 and the temperature at 300 K. Then the reaction mixture is hold for one more hour to finish the hydrolysis of excess of dimethylsulfate. Then the suspension is separated by filtration. About 240 g of a humid solid which gives 140 g dryed product of formula
Figure imgf000038_0001
Is obtained.
38.8 g of the product of formula (103a) are added to a stirred mixture of 10.6 g of cisteamin chlorohydrate in 15 g triethylamine and 70g acetonitrile under nitrogen atmosphere at 293 K. The temperature is maintained at 273 K. The reaction mixture is stirred for 20 hours at this temperature. The reaction mass is filtered off and the filter residue washed with 45 ml of acetonitrile and dried in vacuum to obtain 42 g of product of formula (103). The product is characterized by 1H-NMR Data in deuterated methanol (128 scans)/ 360MHz:
Figure imgf000038_0003
Example A4
Figure imgf000038_0002
100 g 4-fluoro-3nitro-anilin is added to a stirred mass of 80 g methanol, heated to 333 K, 0.1 ml sulfuric acid added, and then 90 ml of propionic anhydride during 15 minutes. Then heating and boiling is continued for 15 minutes. Then the reaction mixture is cooled slowly to 273 K with stirring. At the final temperature stirring is continued for 30 minutes, then the suspension is filtered, washed with cold methanol, dryed in the vacuum dryer getting 114 g acetyl derivative which is worked up further. Then, the acetyl derivative is solved in 520 ml ethanol and continuously added to 130 g iron in 35 ml concentrated chlorhidric acid and 220 ml water at 363K during 1 hour. The temperature drops to 353 K. The reaction mixture is stirred for further 3 hours. The hot mass is separated through filtration, the residuu washed with 100 ml ethanol. The filtrate and wash solution is cooled to 380 K with mixing, when cristallization of the product takes place. The product is separated by filtration, washed with cold ethanol and dryed in a vacuum dryer.
The dried material is dissolved in 132 ml water and 110 ml of 32% hydrochloric acid at 295 K. Then the reaction mixture is cooled to 273 K and 86.4 g 36% sodium nitrite solution is dropped at such a rate that the temperature of the mixture is maintained in the range of 273 to 276 K. After the addition of the sodium nitrite solution, the mixture is stirred for one hour. If no excess of nitrite is detected during one hour (detection by using a potassium iodide/starch paper), further amounts of sodium nitrite solution is added. After this one hour the remaining excess of nitrite is destroyed with sulfamic acid. Then, the obtained diazo solution is dropped to a 273 K cold solution of 33.4 g imidazole in 130 ml water, whereby the pH of the solution is maintained in the range of pH 10 to 11 by adding 36% sodium hydroxide solution. After completing the diazo addition, the obtained suspension is warmed up to 295 K, the pH is adjusted to 10.5 with 36% sodium hydroxide solution. After one hour stirring at this pH and temperature, the suspension is filtrated and then washed twice with 100 ml water to obtain 200 g of the humid product
Then, the filtercake from the previouse step is suspended in water and 3 weight equivalents dimethylsulphate and sodium hydroxide simoultaniously added for maintaining the pH in the range of 10-10.3 and the temperature at 300 K. Then, the reaction mixture is hold for one more hour, to finish the hydrolysis of excess of dimethylsulphate. Then, the suspension is separated by filtration. About 240 g humid solid, which gives 140 g dryed product of formula
Figure imgf000039_0001
Figure imgf000040_0002
38.8 g of the product of formula (104a) are added under nitrogen atmosphere at 293 K to a stirred mixture of 1O.6 g of cisteamin chlorohydrate in 15 g triethylamine and 70g acetonitrile. The temperature is maintained at 273 K. The reaction mixture is stirred for 20 hours at this temperature. The reaction mass is filtered off and the filter residue is washed with 45 ml of acetonitrile and dried in vacuum to obtain 32.6 g of product of formula (104). Characterization by 1H-NMR Data in deuterated methanol (128 scans)/ 360MHz
Figure imgf000040_0003
Example A5
Figure imgf000040_0001
100 g 4-fluoro-3nitro-anilin are added to a stirred mass of 80 g methanol and heated to 333 K. 0.1 ml sulfuric acid and 90 ml of benzoyl chloride are added during 15 minutes. Heating and boiling is continued for 15 minutes. Trie reaction mixture is cooled slowly to 273 K with stirring andcontinued for 30 minutes. The suspension is filtered off, washed with cold methanol, dryed in the vacuum dryer getting 114 g acetyl derivative which is worked up further. The acetyl derivative is dissolved in 520 ml ethanol and continuously added to 130 g iron in 35 ml concentrated chlorhidric acid and 220 ml water at 363K during 1 hour. The temperature drops to 353 K. The reaction mixture is stirred for further 3 hours. The hot mass is separated through filtration, the residue washed with 100 ml ethanol. The filtrate and wash solution are cooled to 380 K with mixing when cristalliziation of the product takes place. The product is separated by filtration, washed with cold ethanol and dryed in a vacuum dryer. The dried material is dissolved in 132 ml water and 1 10 ml of 32% hydrochloric acid at 295 K. Then the reaction mixture is cooled to 273 K and 86.4 g of a 36% sodium nitrite solution are dropped at such a rate that the temperature of the mixture is maintained in the range of 273 to 276 K. After the addition of the sodium nitrite solution the mixture is stirred for one hour. If no excess of nitrite is detected during one hour (detection by using a potassium iodide/starch paper) further amounts of sodium nitrite solution are added. The remaining excess of nitrite is destroyed with sulfamic acid. Then the obtained diazo solution is dropped to a 273 K cold solution of 33.4 g imidazole in 130 ml water, whereby the pH of the solution is maintained in the range of pH 10 to 11 by adding 36% of a sodium hydroxide solution. After completion of thethe diazo addition the obtained suspension is warmed up to 295 K, the pH adjusted to 10.5 with 36% sodium hydroxide solution. -After stirring for one hour at this pH and temperature the suspension is filtered off and then washed twice with 100 ml water to obtain 200 g of the humid product Then the filtercake from the previouse step is suspended in water and 3 weight equivalents dimethylsulfate and sodium hydroxide simoultaniously added for maintaining the pH in the range of 10-1 0.3 and the temperature at 300 K. Then the reaction mixture is hold for one more hour to finish the hydrolysis of excess of dimethylsulfate. Then, the suspension is separated by filtration. About 240 g of a humid solid, which gives 140 g dry product of the following formula
Figure imgf000041_0001
is obtained Characterizeation by 1H-NMR Data in deuterated methanol (128 scans)/ 360MHz
Figure imgf000042_0002
48 g of the compound of formula (105a) are added to a stirred mixture of 11.6 g of cisteamin chlorohydrate in 15 g triethylamin and 70g acetonitrile under nitrogen atmosphere at 293 K. Then the temperature is maintained at 273 K. The reaction mixture is stirred for 20 hours at this temperature. The reaction mass is filtered off and the filter residue is washed with 45 ml acetonitrile and dried in vacuum to obtain 42.6 g of the compound of formula (105). Characterization by1H-NMR Data in deuterated methanol (128 scans)/ 360MHz:
Figure imgf000042_0003
Example A6
Figure imgf000042_0001
1.Formation of the Hvdrazone: 14 g sulfuric acid are added to 42 g of water and cooled to 293K. 24 g of N-methyl-phenyl hydrazine (100%) are added with stirring. 24.5 g of 4-pyridine- aldehyde are dropped in during 15 minutes and stirring is continued for 1 hour. The pH is raised to 2.2 by adding a sol ution of 36% sodium hydroxide in water. 2.7 g sodium chloride are added at the 333K. Stirrϊ ng is continued at this temperature for one hour. The slurry is separated by filtration; the filter cake is dried at 343K in vacuum to yield 42 g of an orange powder.
2. Alkylating agent: A mixture of 15.4 g of 2.2-dithiodiethanol in 100 ml chloroform and 24.1 g pyridine are cooled with stirring at 273K and then 41 .0 g of tosyl chloride are added in small amounts, maintaining the temperature. After completion of the addition the mixture is left over night in the refrigerator. The reaction mixture is mixed with a water/hydrochloric acid/ice slurry. The phases are separated, washed with water and dried. The obtained solution of toluenesulfonate diester is used in the 3. step.
3.Alkylation: The foregoing hydrazone is dissolved b»y stirring with the equivalent amount of diester solution. Temperature is raised to 334K which is maintainedduring the following 48 hours. Crystals separated in the slurry are filtred off. The product is washed with 50 ml chloroform and dried in vacuum to obtain 59 g of an orange solid product. The product is recristallized twice from methanol.
Characterization by 1H-NMR data in deuterated metl anol (32 scans)/ 360MHz:
Figure imgf000043_0001
Example A7
Figure imgf000044_0001
1. Monoazo: 50.0 of g 2-amino-thiazol are added to a stirred solution of 135 ml 60% sulfuric acid at 293-310 K. Then, the reaction mixture is cooled to 273 K and 81 ml of a 40% nitrosilsulfuric acid are dropped at such a rate that the temperature of the mixture is maintained in the range of 273 to 276 K by cooling. After the addition the mixture is stirred for four hours. The solution is dropped to a well-stirred water ice mixture (400 g) containing 2,5 g amidosulfuric acid. To the obtained diazo solution (at 273 IC ice added if need) 60,5 g dimethylaniline are dropped. Then the pH of the solution is raised to the range of 5 to 6 by adding 36% sodium hydroxide solution. After one hour stirring at this pH and temperature the suspension is filtered off and then washed twice with 50 ml -water to obtain 155 g of the humid product. After drying 100 monoazo dye is obtained.
2. Alkylating agent: A mixture of 15.4 g of 2,2-dithiodiethanol in 100 ml chloroform and 24,1 g pyridine are cooled with stirring to 273 K and then 41.0 g of tosyl chloride are added in small amounts maintaining the temperature.
After completion of the addition the mixture is left over night in the refrigerator. The reaction mixture is mixed with a water/hydrochloric acid/ice slurry, the phases are separated, washed with water and dried. The obtained solution of toluenesulfonate diester is used in the following step
3.Alkylation: The foregoing monoazo is dissolved by stirring into the diester solution. Temperature is raised to 333K. The temperature is maintained at 333K during the following 60 hours. Crystals separated in the slurry are filtered off. The product is washed with 50 ml of chloroform and dried in vacuum to obtain 59 g of a dark violett solid product. The product is recristallized twice from methanol.
Characterization by1H-NMR Data in deuterated methanol (128 scans>/ 360MHz:
Figure imgf000045_0002
Example A8:
Figure imgf000045_0001
Monoazo synthesis
90.0 g 2-amino-6-methoxy-benzothiazol are added to a stirred solution of 135 ml 60% sulfuric acid at 293 K. The reaction mixture is cooled to 273 K and 81 ml of a 40% nitrosilsu- Ifuric acid are dropped at such a rate that the temperature of the mixture is maintained in the range of 273 to 276 K with cooling and stirred for four hours. The solution is dropped to a well-stirred water ice mixture (400 g) containing 2.5 g amidosulfuric acid. 60,5 g dimethylaniline are dropped to the obtained diazo solution (at 273 K ice added if need). The pH of the solution is adjusted between 5 and 6 by adding 36% sodium hydroxide solution. After stirring for one hour at this pH and temperature the suspension is filtered off and washed twice with 50 ml water to obtain 255 g of the humid product. After drying 151 monoazo dye is obtained.
2. Alkylating agent: A mixture of 21.4 g of 2.2-dithiodiethanol in 100 ml chloroform and 24.1 g pyridine are cooled with stirring to 273K and then 41.0 g of mesyl anhydride are added in small amounts under constant temperature.
After completion of the addition the mixture is left over night in the refrigerator to finish the reaction. The reaction mixture is mixed with a water/hydrochloric acid/ice slurry, the phases are separated, washed with water and dried. The obtained solution of methanesulfonate diester is used in the following step
3.Alkylation: Two equivalents of the foregoing monoazo are dissolved by stirring into the diester solution. Temperature was raised to 334K. The temperature was maintained at 334K during the following 80 hours. Crystals separated in the slurry are filtered off. The product is washed with 50 ml of chloroform and dried in vacuum to obtain 80 g of a dark violett solid product. The product is recristallized twice from methanol. Characterization by 1H-NMR in deuterated methanol (128 scans)/ 360MHz:
Figure imgf000046_0002
Example A9
Figure imgf000046_0001
Same preparation process as described in example A8, but with the difference that 2-amϊ no- benzothiazol instead of 2-amino-6-methoxy-benzothiazol is used. Example A10:
Figure imgf000047_0001
19.9 g of N,N'-dimethyl-ethylendiamine are added with stirring to 120g acetonitrile and compound of the formula of formula (101a) at 293 K under nitrogen atmosphere. The temperature is raised to 333 K while the viscosity of the reaction mixture decreases . The reaction mixture is stirred at this temperature during 25 hours. Then the reaction mass is stirred for 4 hours while the temperature is decreased to 295 K. The reaction mass is filtered off and the filter residue is washed with 45 ml of acetonitrile. Then the material is dried in vacuum to obtain 16 g of product.
2. Alkylating agent: A mixture of 15.4 g of 2.2-dithiodiethanol in 100 ml chloroform and 24.1 g pyridine are cooled with stirring to 273K and then 41.0 g of tosyl chloride are added in small amounts under constant temperature.
After completion of the addition the mixture is left over night in the refrigerator. The reaction mixture is mixed with a water/hydrochloric acid/ice slurry, the phases are separated, washed with water and dried. The obtained solution of methane-benzene-sulfonate diester is used in the following step.
3.Alkylation: Stirring into the diester solution in chloroform dissolves two equivalents of the foregoing monoazo. Temperature is raised to 333K. The temperature is maintained at 333K during the following 20 hours. Crystals separated in the slurry are filtrated. The product is washed with 50 ml of chloroform and dried in vacuum to obtain 80 g of a dark solid prod uct. The product is recristallized twice from methanol.
Example A11
Figure imgf000048_0001
Same preparation process as described in example A10, but with the difference that ethylendiamine is used instead of N.N'-dimethyl-ethylendiamine.
Example A12
Figure imgf000048_0002
1. 16.9 g of ethylenediamine are added to the compound of the formula (101a) (prepared in Example A1) and120g isopropanol at 293 K under nitrogen atmosphere under stirring. The temperature is raised to 333 K while the viscosity of the reaction mixture decreases. The reaction mixture is stirred at this temperature during 25 hours. Then the reaction mass is stirred for 4 hours while the temperature is decreased to 295 K. The reaction mass is filtered off and the filter residue is washed with 45 ml of isopropanol. Then the filter residue is dried in vacuum to obtain 16 g of the product.
2. Acylating agent: A mixture of 15.4 g of 2,2-dithiodipropionic acid and then 41.0 g of thionyl chloride is warmed to 333 K for 2 hours under constant temperature. After completion of the addition the mixture is distilled under vacuum . 3.Alcylation: Two equivalents of the foregoing monoazo are dissolved by stirring into the acid chloride solution in chloroform. The temperature is raised to 333K and maintained during the following 48 hours. Crystals separated in the slurry are filtrated. The product is washed with 50 ml of chloroform and dried in vacuum to obtain 80 g of a dark redish solid product which is recristallized twice from methanol.
Figure imgf000048_0003
2.925 t 4.00 methylen
Example A13
Figure imgf000049_0001
1.Formation of the Hydrazone: 14 g sulfuric acid are added to 42 g of water and cooled to 293K. 25 g of N-methyl-phenyl hydrazine (100%) are added with stirring. 24.0 g of 4-pyridine- aldehyde are dropped in during 15 minutes and stirring is continued for 1 hour. The pH is raised to 2.2 by adding a solution of 36% sodium hydroxide in water. 2.7 g sodium chloride are added at a temperature of 333K and stirred for one more hour at this temperature. The slurry is separated by filtration, the filter cake dried at 343K in vacuum to yield 43 g of an orange powder. 2. Alkylating agent: A solution of 22.5 g of cisteamine dichlorohydrate in water and 31.4 g bromoacetic chloride are cooled with stirring to 273K and then the pH is kept constant by adding NaOH solution in small amounts under constant temperature. After completion of the addition the mixture is left over night in the refrigerator. The mixture has two phases, which are separated, washed with water and dried. 3. Alkylation: The foregoing hydrazone is dissolved in methanol by stirring with the dibromide solution. The temperature is raised to 60°C and maintained at 60°C during the following 24 hours. The crystals separated in the slurry are filtrated. The product is washed with 50 ml of methanol and dried in vacuum to obtain 49 g of an orange solid product. The product is recristallized twice from methanol.
Characterization by 1H-NMR data in deuterated methanol (32 scans)/ 360MHz:
Figure imgf000049_0002
Figure imgf000050_0002
Example A 14:
Figure imgf000050_0001
1. 9.9 g of N.N-dimethyl-ethylendiamine are added to 120g acetonitrile and to the compound of the formula (101a) (prepared in example A1) at 293 K under nitrogen atmosphere with stirring. The temperature is raised to 333 K while the viscosity of the reaction mixture decreases. The reaction mixture is stirred at this temperature during 25 hours. The reaction mass is stirred for 4 hours while the temperature is decreased to 295 K. The reaction mass is filtered off and the filter residue washed with 45 ml of acetonitrile. Then the material is dried in vacuum to obtain 16 g of product. 2. Alkylating agent: A mixture of 15.4 g of 2.2-dithiodiethanol in 100 ml chloroform and 24,1 g pyridine is cooled with stirring to 273K and then 41.0 g of tosyl chloride are added in small amounts under constant temperature. After completion of the addition the mixture is left over night in the refrigerator. The reaction mixture is mixed with a water/chlorhidric acid/ice slurry, the phases are separated, washed with water and dried. The obtained solution of methane- benzene-sulfonate diester is used in the following step 3.Alkylation: Stirring into the diester solution in chloroform dissolves two equivalents of the foregoing monoazo. The temperature is raised to 333K and maintained at 333K during the following 20 hours. Crystals separated in the slurry are filtrated. The product is washed with 50 ml of chloroform and dried in vacuum to obtain 80 g of a dark solid product, which is recristallized twice from methanol.
Figure imgf000050_0003
Figure imgf000051_0003
Example 15:
Figure imgf000051_0001
The compound of formula (102a) (prepared in example 2) is reacted with N.N-dimethyl-ethy- lenediamine according to the procedure as described in Example A14. The same alkylating agent is used to give the compound of formula (115).
Example A 16:
Figure imgf000051_0002
The compound of formula (104a) (prepared in example A 4) is reacted with N.N-dimethyl- ethylendiamine according to the method as described in Example A14. The same alkylating agent is used and the compound of formula (116) is obtained.
Example B Application Examples: The washing fastness of the dyed hair is analyzed by the Grey scale according to Industrial organic pigments by Herbst&Hunger, 2nd ed. engl. S. 61) Nr 10: DIN 54001-8-1982, „Her- stellung und Bewertung der Aenderung der Farbe", ISO 105-A02-1993. ln the following application examples compositions with definitions the below given are used:
Solution (1) (permanent lotion, pH 8.2): Aqua, Ammonium Thioglycolate, Ammonium Bicarbonate, Ethoxydiglycol, Hexylene Glycol, ThioglycolicAcid; Thiolactic Acid, PEG-60 Hydrogenated Castor Oil, Glycine, Etidronic Acid, lsoceteth-20, Polysilicone-9, Styrene/PVP Copolymer, Trideceth-12, Amodimethicone, Cetrimonium Chloride, Ammonium Hydroxide, Polyquaternium-6, Isopropyl Alcohol, Alcohol denat., Simethicone, Parfum
Solution (2) (permanent fixation, pH 3.9): Based on: Aqua, Hydrogen Peroxide, Propylene Glycol, Lauryldimonium Hydroxypropyl Hydrolyzed Wheat Protein, PEG-5 Cocamide, Sodium Cocoamphoacetate, Polyquaternium-35, Coco-Betaine, Acetaminophen, Phosphoric Acid, Sodium Chloride, Parfum
Solution (3) (dyeing solution): 0.1 % of the dye is dissolved in a 10 % solution of a non-ionic surfactant (Plantacare 200UP, Henkel) adjusted to pH 9.5 using citric acid or monoethanol- amine.
Solution (4) (permanent lotion, pH 8.7): Aqua, Thioglycolic Acid, Ammonium Bicarbonate, Ammonium Hydroxide, PEG-60 Hydrogenated Castor Oil, Sericin, Polyquatemium 22, Lauryldimmonium Hydroxypropyl Hydrolyzed Keratin, Hydroxyethyl Cetyldimonium Phosphate, Sodium Cocoamphopropionate, Parfum/Fragance, Styrene/PVP Copolymer, Pantasodium Pentetate, Ascorbic Acid, Benzyl Salicilate, Hydroxyisohexyl 3-Cyclohexene Carboxaldehyde, Hexyl Cinnamal, Butylphenyl Methylprpional, Linalool.
Solution (5) (permanent fixation, pH 2.9): Based on: Aqua, Hydrogen Peroxide, Hydroxycetyl Hydroxyethyl Dimonium Chloride, Tetrasodium Etidronate, PEG-40 hydrogenated Castor Oil, Salicylic Acid, Tetrasodium EDTA, Styrene/PVP Copolymer, Sericin, Parfum/Fragance, Phosphoric Acid.
Placebo colouring material Obtained by adding 11 ml ammonia solution (25% b.w.) at 343K to a composition consisiting of ammonium chloride 0.5% b.w., tetrasodium EDTA, 0.2% b.w., silica 0.1% b.w., water, add100% b.w..
Then, the obtained mixture is added to a composition consisting of cetearyl alcohol, 11% b.w., oleth-5, 5% b.w., oleic acid, 2.5% b.w., stearamide MEA, 2.5% b.w., cocoamide MEA, 2.5% b.w., propylene glycol 1.0% b.w..
Colouration composition of a placebo: The colouration composition of a placebo is obtained by adding 11 ml ammonia solution (25% b.w.) at 343K to a composition consisiting of ammonium chloride 0.5% b.w., tetrasodium EDTA, 0.2% b.w., silica 0.1% b.w., water, add100% b.w. and 0.2% b.w. of a dyestuff.Then, the obtained mixture is added to a composition consisting of cetearyl alcohol, 11% b.w., oleth-5, 5% b.w., oleic acid, 2.5% b.w., stearamide MEA, 2.5% b.w., cocoamide MEA, 2.5% b.w., propylene glycol 1.0% b.w.. Example B1 :
A tress of human hair, bleached white, is shampooed. Then, the towel dried hair tress is put on the glass plate. Solution (1) is applied to the wet hair tress. After 10 min the hair tress is rinsed under tap water and pressed out with a paper towel. Afterwards the tress is treated with a solution 3 containing the dye of formula (101) (Example A1) for 20 min and then rinsed with water. Then solution (2) is applied to the towel dried hair tress. After 10 minutes the hair tress is rinsed under tap water again and dried. The tress is very intensive red with a very good wash fastness.
For comparison another tress of human hair, bleached white, is only treated with solution (3) containing the dye of formula (101) for 20 min and then rinsed with water and dried. The tress shows a less intensive red and the wash fastness is much worse.
Example B2:
A tress of blonde undamaged human hair is shampooed. Then the towel dried hair tress is put on the glass plate.The solution (1) (permanent solution) is applied to the wet hair tress. After 10 min the hair tress is rinsed under tap water and pressed out with a paper towel. Afterwards the tress is treated with a solution 3 containing the dye from Example A2 for 20 min and then rinsed with water. Then solution (2) (permanent fixation) is applied to the towel dried hair tress. After 10 min. the hair tress is rinsed under tap water again and dried. The tress is very intensive violet with a very good wash fastness.
For comparison another tress of blonde undamaged human hair is only treated with solution 3 containing the dye for 20 min and then rinsed with water and dried. The tress is less intensive violet and the wash fastness is much worse.
Example B3:
0.1%, b.w. colouring material solution consisting of compound of formula (101) in plantaren solution (pH=9.5) is applied on the dry hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 20 min. at room temperature. Then, the strands are rinsed under tap water and dried 12 hours.
Figure imgf000054_0001
Example B4:
0.1%, b.w. colouring material solution consisting of compound of formula (101) in plantaren solution (pH=9.5) is applied on shampooed hair (two blond, two middle blond and two damaged hair strands). Then the towel dry strands are put on a glasplate and treated with solution (1) (permanent lotion) and allowed to stand for 10 min. Then, the strands are rinsed under tap water and the towel dry strands are treated with a solution (2) (permanent fixation) and allowed to stand for 10 min. Then, the strands are rinsed under tap water and dried for 12 hours at room temperature .
Figure imgf000054_0002
Example B5:
Same application as described in example B4, but with the difference that the compound of formula (101) is replaced by the compound of formula (102).
Figure imgf000054_0003
Example B6:
Solution (1) (permanent lotion) is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 5 min. Then the strands are rinsed under tap water and the towel dry strands are treated with a 0.1% b.w. colouring material solution consisting of compound of formula (101) in plantaren (pH=9.5) allowed to stand for 20 min and then rinsed. Then the towel dry strands are treated with a solution (2) (permanent fixation) and allowed to stand for 10 min. Then the strands are rinsed under tap water and dried for 12 hours at room temperature.
Figure imgf000055_0001
Example B7:
Solution (1) (permanent lotion) having a pH 8.2, which is mixed with a weight equivalent water to give a pH of 8.00 is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 10 min. Then the strands are rinsed under tap water and the towel dry strands are treated with a 0.1% b.w. colouring material solution consisting of the compound of formula (101) in plantaren (pH=9.5) and allowed to stand for 20 min and then rinsed. Then the towel dry strands are treated with solution (2) (permanent fixation) and allowed to stand for 10 min. Then the strands are rinsed under tap water and dried for 12 hours at room temperature.
Figure imgf000055_0002
Example B8:
Same application method as described in Example B7, but with the difference that the permanent wave solution allowed to stand for 5 min. instead of 10 min.
Figure imgf000055_0003
Example B9:
Solution (1 ) (permanent lotion) with a pH 8.2 which is mixed with one weight equivalent water togive a pH of 8.00 is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 1 min. Then the strands are rinsed under tap water and the towel dry strands are treated with a 0.1% b.w. colouring material solution consisting of the compound of formula (101) in plantaren (pH=9.5) allowed to stand for 10 minutes and then rinsed. Then the towel dry strands are treated with solution (2) (permanent fixation) and allowed to stand for 10 min. Then the strands are rinsed under tap water and dried for 12 hours at room temperature.
Figure imgf000056_0001
Example B10:
A solution 1 (permanent lotion), having a pH 8.2, which is mixed with two weight equivalents water to give a pH of 8.0, is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 1 minutes.. Then the strands are rinsed under tap water and the towel dry strands are treated with a 0.1% b.w. colouring material solution consisting of compound of formula (101) in plantaren (pH=9.5) and allowed to stand for 20 min and then rinsed. Then the towel dry strands are treated with a solution 2 (permanent fixation) and allowed to stand for 10 min. Then, the strands are rinsed under tap water and dried for 12 hours at room temperature. Washing fastness: 10 x washed with shampoo / Results Strand Colour Washing fastness blond red 4 middelblond red - brown red - damaged red 4
Example B11:
A solution 1 (permanent lotion), having a pH 8.2, which is mixed with two weight equivalents water to give a pH of 8.08 is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 1 minute. Then the strands are rinsed under tap water and the towel dry strands are treated with a 0.1% b. w. colouring material solution consisting of the compound of formula (1O1) in plantaren (pH=9.5), allowed to stand for 10 min. and then rinsed. Then the towel dry strands are treated with a solution 2 (permanent fixation) and allowed to stand for 10 min. Then the strands are rinsed under tap water and dried for 12 hours at room temperature.
Figure imgf000057_0001
Example B12:
A solution 1 (permanent lotion) having a pH 8.2 is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 10 min. Then, the strands are rinsed under tap water, and the towel dry strands are treated with a colouring material solution consisting of a. compound of formula (101) according to example A1 , 0.2%, b.w. solution in plantaren, and b. a watery hydrogene peroxid solution, 6% b.w., which are mixed together in a weight ratio of 1:1, and then applied on the hair and allowed to stand for 30 min, and then, rinsed and then shampooed, and afterwards dried for 12 hours at room temperature.
Figure imgf000057_0002
Application Example B13:
Solution 1 (permanent lotion; pH 8.2) is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 10 min. Then the strands are rinsed under tap water and the towel dry strands treated with a colouring material solution consisting of a. compound of formula (101) according to example A1 , 0.2%, b.w. solution in plantaren, and b. placebo colouring material, which are mixed together in a weight ratio of 1 :1 , and then applied on the hair and allowed to stand for 30 min. and then rinsed.
Then the towel dry strands are treated with a solution (2) (permanent fixation), and allowed to stand for 10 min. Then the strands are rinsed under tap water and dried 12 hours at room temperature.
Figure imgf000058_0001
Application Example B14:
Solution (1) (permanent lotion; pH 8.2) is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 10 min. Then the strands are rinsed under tap water and the towel dry strands are treated with a 0.1%, b.w. colouring material solution consisting of the compound of formula (101) insolution (2) (permanent fixation) and allowed to stand for 20 min. Then the strands are rinsed under tap water and dried 12 hours at room temperature.
Figure imgf000058_0002
Application Example B15: A composition consisting of a. a solution 1 (permanent lotion), having a pH 8.2, and b. a 0.2%, b.w. solution of compound of formula (101) in plantaren, which are mixed together in a weight ratio of 1:1 is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 10 min. Then, the strands are rinsed under tap water. The towel dry strands are treated with a solution 2 (permanent fixation), and allowed to stand for 10 min. Then the strands are rinsed under tap water and dried 12 hours at room temperature.
Figure imgf000058_0003
Example B16:
A composition consisting of a. solution (1) (permanent lotion), having a pH 8.2, and b. 0.1% b.w. solution of the compound of formula (101) in plantaren, which are mixed together in a weight ratio of 1 :1, is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 20 min. Then, the strands are rinsed under tap water. The towel dry strands are treated with a solution (2) (permanent fixation), and allowed to stand for 10 min. Then the strands are rinsed under tap water and dried 12 hours at room temperature.
Figure imgf000059_0001
Example B17:
A solution 1 (permanent lotion; pH 8.2) is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 20 min. Then the strands are rinsed under tap water and the towel dry strands are treated with a 0.1%, b.w. colouring material solution of compound of formula (101) in solution (2) (permanent fixation) and allowed to stand for 20 min. Then the strands are rinsed under tap water. The towel dry strands are treated with a composition consisting of a. a placebo colouring material and b. a aqueous hydrogen peroxide solution, 12 % b.w., and having a weight ratio of the placebo to the hydrogene peroxide solution of 1 :1. Then the strands are allowed to stand for 30 min. The strands are rinsed under tap water, shampooed and dried 12 hours at room temperature.
Figure imgf000059_0002
Example B18:
Solution (1) (permanent lotion; pH 8.2) is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 10 min. Then the strands are rinsed under tap water and the towel dry strands are treated with a 0.1% b.w. colouring material solution of compound of formula (101) in solution (2) (permanent fixation) and allowed to stand for 20 min. Then the strands are rinsed under tap water. The towel dry strands are treated with a fixation composition consisting of a) ammonia and b) an aqueous hydrogen peroxide solution having a pH of 9.8. Then the strands are allowed to stand for 10 min. The strands are rinsed under tap vwater, shampooed and dried 12 hours at room temperature.
Figure imgf000060_0001
Example B19:
A composition consisting of a. a solution 1 (permanent lotion), having a pH 8.2, and b. a 0.1%, b.w. solution of compound of formula (101) in plantaren which are mixed together in a weight ratio of 1:99 of component a) to b), are applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 20 mi n. Then the strands are rinsed under tap water. The towel dry strands are treated with a fixation composition consisting of a) ammonia and b) an aqueous hydrogen peroxide solution of pH of 9.8. Then the strands are allowed to stand for 10 min. The strands are rinsed under tap water shampooed and dried 12 hours at room temperature.
Figure imgf000060_0002
Example B20:
A colouring material solution consisting of a. 25 ml of a 0.1% b.w. solution of compound of formula (101), and b. 25 ml of a 0.1% b.w. solution of compound of formula (106) is applied on dry hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 30 min.
Figure imgf000061_0001
Example B21 :
A solution 1 (permanent lotion; pH 8.2) is a plied on shampooed hair (two blond, two middle blond and two damaged hair strands) and al lowed to stand for 10 min. Then the strands are rinsed under tap water, and the towel dry strands are treated with a colouring material solution consisting of a. 25 ml of a 0.1% b.w. solution of compound of formula (101) according to example A1 in plantaren, and b. 25 ml of a θ.1% b.w. solution of compound of formula (106) according to example A6 in plantaren solution, allowed to stand for 20 min and then rinsed.
The towel dry strands are treated with a solution (2) (permanent fixation) and allowed to stand for 10 min. The strands are rinsed under tap water and dried 12 hours at room temperature.
Figure imgf000061_0002
Example B22:
A composition consisting of a. Solution 4 (permanent lotion) having a pH 8.7, is mixed with one equivalent water to access pH 8.6), and b. 0.2%, b.w. solution of the compound of formula (101) in plantaren, which are mixed together in a weight ratio of 1 :1 , are applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 5 min. The strands are rinsed under tap water. The towel dry strands are treated with a solution (5) (permanent fixation) and allowed to stand for 10 min. The strands are rinsed under tap water and dried 12 hours at room temperature.
Figure imgf000062_0001
Example B23:
A solution (1) (permanent lotion; pH 8.2) is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 10 min. The strands are rinsed under tap water and the towel dry strands treated with a colouring material solution consisting of a. 0.2% b.w. solution of compound of formula (101) according to example A1, in plantaren, and b. placebo colouring material, which are mixed together in a weight ratio of 1:1, and then applied on the hair and allowed to stand for 20 min and then rinsed.
The towel dry strands are treated with a solution 2 (permane- nt fixation) and allowed to stand for 10 min. The strands are rinsed under tap water and dried 12 hours at room temperature.
Figure imgf000062_0002
Example B24:
Solution (1) (permanent lotion; pH 8.2) is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 10 min. Tthe strands are rinsed under tap water and the towel dry strands treated with) a colouring material solution consisting of a. 0.2% b.w. solution of compound of formula (101) according to example A1, in plantaren, and b placebo colouring material, which are mixed together in aweight ratio of 1 :1 , and then, applied on the hair and allowed to stand for 10 min and then rinsed. Then the towel dry strands are treated with solution (2) (permanent fixation) and allowed to stand for 10 min. Then the strands are rinsed under tap water and dried 12 hours at room temperature.
Figure imgf000063_0001
Example B25:
Solution (1 ) (permanent lotion) is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 1 0 min. The strands are rinsed under tap water and the towel dry strands treated with a Q».1% b. w. colouring material solution of the compound of formula (101) in plantaren, allowed to stand for 20 min and then rinsed. The towel dry strands are treated with a solution 2 (permanent fixation) and allowed to stand for 10 min. The strands are rinsed under tap water and dried 12 hours at room temperature.
Figure imgf000063_0002
Example B26:
A composition consisting of a. a solution 1 (permanent lotion), having a pH 8.2, and b. 0.1% b.w. solution of compound of formula (101) according to example A1 in plantaren, which are mixed together in a weight ratio of 1 :9 of component a) to b), is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 20 min. Then, the strands are rinsed under tap water. The towel dry strands are treated with a solution 2 (permanent fixation), and allowed to stand for 10 min. Then, the strands are rinsed under tap water and dried 1---. hours at room temperature.
Figure imgf000063_0003
Example B27:
Solution (4) (permanent lotion; pH 8.7) is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 15 min. The strands are rinsed under tap water, and the towel dry strands treated with a colouring material solution consisting of a 1.6 weight equivalents of a 0.1% b.w. solution of compound of formula <101) according to example A1 in plantaren solution, b) 5 weight equivalents of of a 0.1% b.w. solution of compound of formula (106) according to example A6 in plantaren solution, and c) 1.5 weight equivalents of a 0.1% b.w. solution of compound of formula (103) according to example A3 in plantaren solution, and allowed to stand for 20 min. and then rinsed. The towel dry strands are treated with solution (5) (permanent fixation; pH 2.9) and allowed to stand for 10 min. Trie strands are rinsed under tap water and dried for 12 hours at room temperature.
Figure imgf000064_0001
Example B28:
A colouring material solution consisting of a 1.6 w. eq. of a 0.1% b.w. solution of the compound of formula (101) in plantaren, and b.5 w. eq. of of a 0.1% b.w. solution of compound of formula (106) in plantaren, c. 1.5 w. eq. of a 0.1% b.w. solution of compound of formula (103) in plantaren solution, is applied on dry hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 20 min.
Figure imgf000064_0002
Example B29:
Hair (blond strand, damaged strand) is shampooed, rolled on curls windings and then treated with solution (4) (permanent lotion; pH 8.7) and then allowed to stand for 10 min. The hair is treated with a 0.1% b.w. solution of compound of formula (101) in plantaren and allowed to stand for 20 min at room temperature. The hair is rinsed under tap water, and the towel dry strands treated with a solution 5 (permanent fixation; pH 2.9) and allowed to stand for 5 min.
Curl windings are removed and the hair is again treated with solution (5) (permanent fixation; pH 3.92) and allowed to stand for 5 min. The strands are rinsed under tap water and dried 12 hours at room temperature.
The strands are curled and red coloured.
Example B30:
Hair (blond strand, damaged strand) is shampooed and then rolled on curls windings and treated with solution (4) (permanent lotion; pH 8.7 which is diluted with 2 weight equivalents of water and then allowed to stand for 5 min. The hair is treated with 0.1% b.w. solution of compound of formula (101) in plantaren and allowed to stand for 20 min at room temperature. The hair is rinsed under tap water and the towel dry strands are treated with solution (5) (permanent fixation; pH 2.9) and allowed to stand for 10 min. The strands are rinsed under tap water and dried 12 hours at room temperature.
Figure imgf000065_0001
Example B31 :
Hair (blond strand, damaged strand) is shampooed and then rolled on curls windings and treated with solution (4) (permanent lotion; pH 8.7), which is diluted with 2 weight equivalents of water and allowed to stand for 10 min. The hair treated with 0.1% b.w. solution of the compound of formula (101) in plantaren and allowed to stand for 20 min at room temperature. The hair is rinsed under tap water and the towel dry strands are treated with solution (5) (permanent fixation; pH 2.9) and allowed to stand for 10 min. The strands are rinsed under tap water and dried 12 hours at room temperature.
Figure imgf000066_0001
Example B32:
A composition consisting of a. a solution 1 (permanent lotion), having a pH 8.2, which are diluted with 4 weight equivalents of water, and B. a 0.2% b.w. solution of compound of formula (101) in plantaren which are mixed together in a weight ratio of 1 :2 of component a) to b), is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 20 min. Then, the strands are rinsed under tap water. The towel dry strands are treated with a solution 2 (permanent fixation), and allowed to stand for 10 min. Then, the strands are rinsed under tap water and dried 12 hours at room temperature.
Figure imgf000066_0002
Example B33:
A composition consisting of 30 g of a 0.1% b. w. solution of the compound of formula (10 1) in plantaren having a pH of 6.12 is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 20 min. The strands are rinsed under tap water and dried 12 hours at room temperature.
Figure imgf000066_0003
Example B34:
A composition comprising 49.95 g of a 0.1%, b.w. solution of the compound of formula (101) in plantaren having a pH of 6.1, and
0.05g ammonium thioglycolate solution, and amonia and citronic acid for adjusting the pH to
8.0, is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 20 min.. The strands are rinsed under tap water. The towel dry strands are treated with solution (2) (permanent fixation) and allowed to stand for 10 min.
The strands are rinsed under tap water and dried 12 hours at room temperature.
Figure imgf000067_0001
Example B35:
A composition comprising
49.75 g of a 0.1% b.w. solution (pH 6.12) of the compound of formula (101), and
0.25g ammonium thioglycolate solution, and amonia and citronic acid for adjusting the pH to
8.0, is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 20 min.. The strands are rinsed under tap water. The towel dry strands are treated with a solution 2 (permanent fixation) and allowed to stand for 10 min.
The strands are rinsed under tap water and dried 12 hours at room temperature.
Figure imgf000067_0002
Example B36:
A composition comprising
49.5 g of a 0.1%, b.w. solution of compound of formula (101) ( pH 6.12), and
0.55g ammonium thioglycolate solution, and ammonia and citronic acid for adjusting the pH to 8.0, is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 20 min. The strands are rinsed under tap water. The towel dry strands are treated with solution (2) (permanent fixation) and allowed to stand for 10 min. The strands are rinsed under tap water and dried 12 hours at room temperature.
Figure imgf000068_0001
Example B37: 10% b.w. of a solution of sodium sulfite in water having a pH of 8 (the pH is adjusted by ammonia and citric acid) is applied on shampooed hair (blond strand, damaged strand) and allowed to stand for 10 min. The hair is rinsed and treated then with 0.1% b.w. of a solution (pH 9.5) of the compound of formula (101) and allowed to stand for 20 min at room temperature. The hair is rinsed under tap water and the towel dry strands are treated with solution (5) (permanent fixation) having a pH 2.9 and allowed to stand for 10 min. The strands are rinsed under tap water and dried 12 hours at room temperature.
Figure imgf000068_0002
Example B38:
A composition comprising
49.95 g of a 0.1% b.w. solution of the compound of formula (101) in plantaren (pH 6.12), and
0.05g of a 0.1% b.w. solution of sodium sulfite in water having a pH of 8 (the pH is adjusted by ammonia and citric acid), is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 20 min. The hair is rinsed under tap water and the towel dry strands are treated with solution (5) (permanent fixation) having a pH 2.9 and allowed to stand for 10 min. The strands are rinsed under tap water and dried 12 hours at room temperature.
Figure imgf000068_0003
Figure imgf000069_0001
Example B39:
A composition comprising
49g of a 0.1% b.w. solution of the compound of formula (101) in plantaren (pH 6.12), and 1g of a 2% b.w. solution of sodium sulfite in water having a pH of 8 (the pH is adjusted by ammonia and citric acid), is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 20 min. The hair is rinsed under tap water and the towel dry strands are treated with a solution 2 (permanent fixation) and allowed to stand for 10 min. The strands are rinsed under tap water and dried 12 hours at room temperature.
Figure imgf000069_0002
Example B40:
2% b.w. of a solution of sodium sulfite in water having a pH of 8 (the pH is adjusted by ammonia and citric acid) is applied on shampooed hair (blond strand, damaged strand) and then allowed to stand for 10 min. The hair is rinsed and treated then with 0.1% b.w. of a solution of the compound of formula (101) (pH 9.5) and allowed to stand for 20 min at room temperature. The hair is rinsed under tap water and the towel dry strands treated with solution (2) (permanent fixation) having a pH 3.92 and allowed to stand for 10 min. The strands are rinsed under tap water and dried 12 hours at room temperature.
Figure imgf000069_0003
Example B41 :
2% b.w. of a solution of ammonium thioglycolate in water (pH 8; adjusted with ammonia and citric acid) is applied on shampooed hair (blond strand, damaged strand) and then allowed to stand for 10 min. The hair is rinsed and treated with 0.1% b.w. of a solution of the compound of formula (101) according in plantaren (pH 9.5) and allowed to stand for 20 min at room temperature. The hair is rinsed under tap water and the towel dry strands are treated with solution (2) (permanent fixation) and allowed to stand for 10 min. The strands are rinsed under tap water and dried 12 hours at room temperature.
Figure imgf000070_0001
Example B42:
2% b.w. of a solution of ammonium thiolactate in water (pH of 8; adjusted by ammonia and citric acid) is applied on shampooed hair (blond strand, damaged strand) and then allowed to stand for 10 min. The hair is rinsed and treated with 0.1% b.w. of a solution of the compound of formula (101) in plantaren (pH 9.5) and allowed to stand for 20 min at room temperature. The hair is rinsed under tap water and the towel dry strands treated with solution (2) (permanent fixation) and allowed to stand for 10 min. Then the strands are rinsed under tap water and dried 12 hours at room temperature.
Figure imgf000070_0002
Example B43:
A composition comprising
49.95g of a 0.1% b.w. solution of the compound of formula (101) in plantaren (pH 6.12), and
0.05g of a 0.1 % b.w. solution of ammonium thioglycolate in water having a pH of 6.1 (the pH is adjusted by ammonia and citric acid), is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 20 min. Then the strands are rinsed under tap water and dried 12 hours at room temperature.
Figure imgf000071_0001
Example B44:
A composition comprising
49.95g of a O.1% b.w. solution of the compound of formula (101) (pH 6.12), and
0.05g of a 0.1 % b.w. solution of ammonium thioglycolate in water having a ( pH of 8.0; iadjusted by ammonia and citric acid), is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 20 min. Then the strands are rinsed under tap water and dried for 12 hours at room temperature.
Figure imgf000071_0002
Example B45:
A composition comprising
49.95g of a O.1% b.w. solution of compound of formula (101) in plantaren (pH 6.12), and
0.05g of a 0.1 % b.w. solution of ammonium thioglycolate in water (pH 8.0; adjusted by ammonia and citric acid), is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 20 min. Then the hair is rinsed under tap water and the towel dry strands treated with a composition comprising component a) and b) in a weight ratio of 1 :1, wherein a) is hydrogene peroxide, 6% b.w. solution in water, and b) is a colouration composition of a placebo and then are allowed to stand for 30 min. Then the strands are rinsed under tap water and dried 12 hours at room temperature.
Figure imgf000072_0001
Example B46:
A solution of 0.1% b.w. of the compound of formula (101) in plantaren (pH 8; pH is adjusted with ethanol amin), is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 20 min. Then the hair is rinsed under tap water and dried 12 hours at room temperature.
Figure imgf000072_0002
Example B47:
A solution of 0.1% b.w. of the compound of formula (101) (pH 8; adjusted with ethanolamine) is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 20 min. The hair is rinsed under tap water and the towel dry strands treated with a composition comprising component a) and b) in a weight ratio of 1:1, wherein a) is hydrogen peroxide, 6% b.w. solution in water, and b) is a colouration composition of a placebo and are allowed to stand for 30 min. The strands are rinsed under tap water and dried for 12 hours at room temperature.
Figure imgf000072_0003
Example B48:
A composition comprising
49.91g of a 0.1% b.w. solution of the compound of formula (101) in plantaren (pH 6.12), and 0.09g of a 0.1% b.w. solution of ammonium thiolactate in water (pH of 8.0; adjusted with ammonia and citric acid), is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 20 min. Then the hair is rinsed under tap water and the towel dry strands treated with solution (2) (permanent fixation) and allowed to stand for 10 min. Then the strands are rinsed under tap water and dried for 12 hours at room temperature.
Figure imgf000073_0001
Example B49:
A solution of 0.1% b.w. of the compound of formula (101) in plantaren (pH of 5.5; adjusted with ethanolamin) is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 20 min. Then the hair is rinsed under tap water and the towel dry strands are treated with a composition comprising component a) and b) in a weight ratio of 1:1, wherein a) is hydrogen peroxide, 6% b.w. solution in water, and b) is a colouration composition of a placebo and then allowed to stand for 30 min. The strands are rinsed under tap water and dried for 12 hours at room temperature.
Figure imgf000073_0002
Example B50:
A composition comprising
49.57g of a 0.1% b.w. solution of the compound of formula (101), and
0.43g of a 0.1% b.w. solution of ammoniumthiolactate in water ( pH 8.0; adjusted with ammonia and citric acid), is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 20 min. Then the hair is rinsed under tap water and the towel dry strands are treated with solution (2) (permanent fixation) and allowed to stand for 10 min..
Then the strands are rinsed under tap water and dried for 12 hours at room temperature.
Figure imgf000074_0001
Application Example B51 :
A composition comprising
49.15g of a 0.1% b.w. solution of thecompound of formula (101) in plantaren (pH 6.12), and
0.85g of a 0.1% b.w. solution of ammoniumthiolactate in water ( pH 8.0; adjusted with ammonia and citric acid), is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 20 min.. The hair is rinsed under tap water and the towel dry strands treated with a solution (2) (permanent fixation) and allowed to stand for 10 min.. The strands are rinsed under tap water and dried 12 hours at room temperature.
Figure imgf000074_0002
Example B52:
0.1% b.w. of a solution of ascobinic acid in water ( pH 8; adjusted by ammonia and citric acid) is applied on shampooed hair (blond strand, damaged strand) and then allowed to stand for 10 min. Then, the hair is rinsed and treated then with 0.1% b.w. of a solution of compound of formula (101) according to example A1 in plantaren (with pH 6.1), and allowed to stand for 20 min at room temperature. Then, the hair is rinsed under tap water, and the towel dry strands are treated with a solution 2 (permanent fixation) and allowed to stand for 10 min. Then, the strands are rinsed under tap water and dried 12 hours at room temperature.
Figure imgf000074_0003
Example B53:
2% b.w. of a solution of hydrochinon in water (pH 8; adjusted by ammonia and citric acid) is applied on shampooed hair (blond strand, damaged strand) and then allowed to stand for 10 min. The hair is rinsed and treated with 0.1% b.w. of a solution of the compound of formula (101) in plantaren solution (with pH 6.1) and allowed to stand for 20 min at room temperature. The hair is rinsed under tap water and the towel dry strands treated with a fixating solution (Goldwell) having a pH 3.92 and allowed to stand for 10 min. Then the strands are rinsed under tap water and dried 12 hours at room temperature.
Figure imgf000075_0001
Example B54:
Test 1 : A solution 1 (permanent lotion; pH 8.2) is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 10 min. Then the strands are rinsed under tap water, and the towel dry strands are treated with a 0.1 % b.w. colouring material solution of a compound of formula (102) according to example A2, in plantaren and allowed to stand for 20 min. and then rinsed. The towel dry strands are treated with a solution (2) (permanent fixation) and allowed to stand for 10 min. Then the strands are rinsed under tap water and dried for 12 hours at room temperature.
Test 2: Solution (1) (permanent lotion; pH 8.2) is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 10 min.. The wet strands are treated with a colouring material solution consisting of a 0.1%, b.w. colouring material solution of the compound of formula (102) in plantaren and allowed to stand for 20 min. and then rinsed. The towel dry strands are treated with solution (2) (permanent fixation) and allowed to stand for 10 min. Then the strands are rinsed under tap water and dried for 12 hours at room temperature.
Test 3: A colouring material consisting of the compound of formula (102) in plantaren is applied on dry hair and then allowed to stand for 20 min., rinsed and dried for 12 hours at room temperature.
Figure imgf000076_0001
Example B55:
A solution 1 (pH 8.2; permanent lotion) is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 10 min. Then the strands are rinsed under tap water and the towel dry strands are treated with a colouring material solution consisting of a compound of formula (102) according to example A2, in plantaren and allowed to stand for 20 min and then rinsed. Then, the towel dry strands are treated with a solution 2 (permanent fixation), and allowed to stand for 10 min. Then, the strands are rinsed under tap water and dried 12 hours at room temperature.
Figure imgf000076_0002
Example 55B
Application Example 55 is repeated with the difference that instead of a compound of formula
(102) according to example A2, a compound of formula (103) according to example A3 is used.
Figure imgf000076_0003
Example 55C
Application Example 56 is repeated with the difference that instead of a compound of formula (102) a compound of formula (106) is used.
Figure imgf000077_0001
Example B56:
Hair (two blond, two middle blond and two damaged hair strands) is treated with a colouring material solution consisting of a 0.1%, b.w. colouring material solution of a compound of formula (102) according to example A2, in plantaren and allowed to stand for 20 min. Then, the strands are rinsed under tap water and dried 12 hours at room temperature.
Figure imgf000077_0002
Example 56 B
Application Example 56 is repeated with the difference that instead of a compound of formula
(102) a compound of formula (103) is used.
Figure imgf000077_0003
Example 56C
Application Example 56 is repeated with the difference that instead of a compound of formula
(102) the compound of formula (107) is used .
Figure imgf000077_0004
Figure imgf000078_0001
Example B57:
A composition comprising
49.95g of a 0.1% b.w. solution of compound of formula (102) according to example A2 in plantaren (pH 6.12), and
0.05g of a 0.1% b.w. solution of ammoniumthioglycolate in water having a pH of 8.0 (the pH is adjusted by ammonia and citric acid), is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 20 min. Then, the hair is rinsed under tap water, and the towel dry strands are treated with a fixating solution (Goldwell) having a pH 3.92 and allowed to stand for 10 min. Then, the strands are rinsed under tap water and dried 12 hours at room temperature.
Figure imgf000078_0002
Example 57B
Application Example 57 is repeated with the difference that instead of a compound of formula
(102) the compound of formula (103) is used.
Figure imgf000078_0003
Example 57C
Application Example 57 is repeated with the difference that instead of the compound of formula (102) the compound of formula (106) is used.
Figure imgf000078_0004
Figure imgf000079_0001
Example B58:
Hair (two blond, two middle blond and two damaged hair strands) is treated with a colouring material solution consisting of a 0.1%, b.w. colouring material solution of a compound of formula (102), in plantaren and allowed to stand for 20 min. Then, the strands are rinsed under tap water and dried 12 hours at room temperature.
Figure imgf000079_0002
Example B60:
A solution 4 (permanent lotion) having a pH 8.7, is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 15 min. Then, the strands are rinsed under tap water, and the towel dry strands are treated with a colouring material consisting of a 0.1%, b.w. solution of compound of formula (101) in plantaren and allowed to stand for 20 min. and then rinsed. Then, the towel dry strands are treated with a solution 5 (permanent fixation), and allowed to stand for 10 min. Then the strands are rinsed under tap water and dried 12 hours at room temperature.
Figure imgf000079_0003
Example B60:
Hair (two blond, two middle blond and two damaged hair strands) is treated with a colouring material solution consisting of a 0.1%, b.w. solution of compound of formula (107) in plantaren, and allowed to stand for 20 min. Then, the strands are rinsed under tap water and dried 12 hours at room temperature.
Figure imgf000080_0001
Example B61 :
A solution 1 (permanent lotion), having a pH 8.2, is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 15 min.. Then the strands are rinsed under tap water, and the towel dry strands are treated with a colouring material consisting of a 0.1% b.w. solution of compound of formula (101) in plantaren and allowed to stand for 20 min. and then rinsed. Then, the towel dry strands are treated with a solution 2 (permanent fixation), and allowed to stand for 10 min. Then, the strands are rinsed under tap water and dried 12 hours at room temperature.
Figure imgf000080_0002
Example B62:
A composition comprising
49.95g of a 0.1% b.w. solution of compound of formula (107) and
0.05g of a 0.1 % b.w. solution of ammonium thioglycolate in water having a pH of 8.0 (the pH is adjusted by ammonia and citric acid), is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 20 min. Then, the hair is rinsed under tap water, and the towel dry strands are treated with a solution 2 (permanent fixation), and allowed to stand for 10 min.
Then, the strands are rinsed under tap water and dried 12 hours at room temperature.
Figure imgf000080_0003
Example B63:
30g of a 0.1% b.w. solution of compound of formula (101) in plantaren and ethanolamin (pH
10), are applied on dry hair (two blond, two middle blond and two damaged and one blond curled hair strands) and allowed to stand for 20 min. Then, the hair is rinsed under tap water, and dried 12 hours at room temperature.
Figure imgf000081_0001
Example B64:
A composition comprising
15g of a 0.1% b.w. solution of compound of formula (103) and
50g of a 0.1% b.w. solution of compound of formula (106) according to example A6 in water, are applied on dry hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 20 min. Then, the hair is rinsed under tap water, and dried 12 hours at room temperature.
Figure imgf000081_0002
Example B65:
A solution 4 (permanent lotion) having a pH 8.7, is applied on shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 15 min. Then, the strands are rinsed under tap water, and the towel dry strands are treated with a colouring material consisting of a 0.1%, b.w. solution of compound of formula (101) according to example A1 , in water and allowed to stand for 20 min. and then rinsed. Then, the towel dry strands are treated with a solution 5 (permanent fixation), and allowed to stand for 10 min.
Then, the strands are rinsed under tap water, and then shampooed.
Then, a solution 4 (permanent lotion) having a pH 8.7, is applied on the shampooed hair (two blond, two middle blond and two damaged hair strands) and allowed to stand for 15 min. Then, the strands are rinsed under tap water, and the towel dry strands are treated with a colouring material comprising
15 g of a 0.1%, b.w. solution of compound of formula (103) in water, and
50 g of a 0.1%, b.w. solution of compound of formula (106), in water and allowed to stand for 20 min. and then rinsed. Then, the towel dry strands are treated with a solution 5 (permanent fixation), and allowed to stand for 10 min. Then the strands are rinsed under tap water, and dried for 12 hours at roomtemperature.
Figure imgf000082_0001

Claims

Claims:
1. Method of dyeing keratin-containing fibers comprising treating the fiber with at least one sulfide dye of formula
(1) R "(2-,)r- -Y— S- "(Z2)q- R , wherein J n
Ri and R2 each independently from each other are a residue of an organic dye;
Y1 and Y2 each independently from each other are unsubstituted or substituted, straight- chain or branched, interrupted or uninterrupted -CrCι0alkylene-; -Cs-Ciocycloalkylene-; C5-C10arylene; or-Cs-Cioarylene^C Cioallcylene)-;
Z1 and Z2 independently from each other are -C(O)-; -C2-Cι2alkenylene-; -(CH2CH2-O)1-5-; -CrC 0alkylene(C5-Cioarylene)-; -C5-Cι0arylene-; -C5-Cι0cycloalkylene-; -C(O)O-; R, -OCO-; -N(R3)-; -N l!— ; -CON(R4)-; -(R5)NC(O)-; -O-; -S-; -S(O)-; or-S(O)2-; R4
R3, R^nd R5 are each independently from each other hydrogen; or unsubstituted or substituted, straight-chain or branched, monocyclic or polycyclic, interrupted or uninterrupted CrCι alkyl; C2-Cι4alkenyl; C6-Cι0aryl; C6-C10aryl-Cι-Cιoalkyl; or C5-Cι0alkyl(C5-Cι0aryl); r, q and n independently from each other are 0 or 1 , if n is 0,
Z3 is hydrogen; and if n is 1 ,
Z3 is -S-; with the proviso that the method does not comprise treating the fiber with an enzyme of the type of a protein disulfidisomerase (EC 5.3.4.1).
2. Method according to claim 1 , wherein
Yi and Y2 are unsubstituted or substituted straight-chain or branched, interrupted or uninterrupted -C5-Cι0cycloalkylene-; or
Figure imgf000083_0001
3. Method according to claim 1 or 2, wherein n is 1.
4. Method according to claim 1 or 2, wherein n is O.
5. Method according to any of claims 1 to 4, wherein Ri and R2 are identical.
6. Method according to any of claims 1 to 4, wherein R | 3 -χ and Z2 independently from each are other - (R3)-; — N— ; -CON(R4)-; -(R5)NC(O)-; -O-; R4 or -S-; and
R3, Ri or R5 are defined as in claim 1.
7. Method according to any claims 1 to 6, wherein at least one sulfide dye of formula
(2) R, (Z,)r Y— S S Y2 (Z2)q R2 and/or at least one sulfide dye of formula
(3) R, (z,)r Y— S H is used, wherein
Ri, R2] Zi, Z2, Yi, Y2, r and q are defined in claim 1.
8. Method according to any of-claims 1 to 7, wherein Ri and R2 are selected from the group of anionic, cationic, neutral, amphoter and zwitterionic dyes.
9. Method according to any of claims 1 to 8, wherein R^ and R2 are selected from the group of cationic dyes.
10. Method according to any of claims 1 to 8, wherein Ri and R2 are selected from the group of anthraquinone, acridine dye, azo, azomethine, hydrazomethine, benzodifuranone, cou- marine, diketopyrrolopyrrol, dioxaxine, diphenylmethane, formazane, indigoid, indophenol, naphtalimide, naphthaquinone, nitroaryl, merocyanine, methine, oxazine, perinone, perylene, pyrenequinone, phtalocyanine, phenazine, quinoneimine, quinacridone, quinophtalone, styryl, triphenylmethane, xanthene, thiazine dye and thioxanthene dyes.
11. Method according to claim 10, wherein R^ and R2 are selected from azo, azomethine, hydrazomethine, merocyanine, methine and styryl dyes.
12. Method according to any of claims 1 to 11, wherein R^ and R2 are selected from azo, azomethine and hydrazomethin dyes.
13. Method according to any of claims 1 to 12 comprising treating the keratin-containing fiber with at least one sulfide dye selected from the dyes of formula
(7) D -Z.-M HZ,\-Yi-S-Z^-Y— (Z -M-Zg-D÷ ; and
(8) τ-z4-Q+-(Z1)r-Y-s-z3- Y2-(Z2)q-Q-z— τ]n ; wherein
Z^and Z5 independently from each other are a bivalent radical selected from -N=N~; -CR6=N-; -N=CR7-; -NR8-N=CR9-; and -Rι0C=N-NRι ; wherein R6, R , Rs, R9, Rioand Rn independently from each other are hydrogen; unsubstituted or substituted d-Cι4alkyl; C2-C14alkenyl; C5-Cι0aryl; Ci C10alkyl-C5-C10aryl; or C5-Cι0aryl- CrC10alkyl; and D+ is a cationic radical of a substituted or unsubstituted aromatic or heterocyclic compound, wherein the cationic charge may be part of the aromatic compounds or part of the substituent; M is a bivalent radical of an aromatic or heteroaromatic substituted or unsubstituted compound; T is a radical of an aromatic substituted or unsubstituted compound; Q+ is a cationic biradical of a substituted or unsubstituted aromnatic or heteroaromatic compound; and Zi, Z2, Z3, Yi, Y2j n, r and q are defined as in claim 1.
14. Method according to claim 13, wherein D+ is selected from a radical of a cationic aromatic heterocyclic compound of the formulae
Figure imgf000086_0001
wherein the asterix * indicates the bond to 7A and/or Z5 of formula (7); and
Q+ is a cationic bivalent radical of an aromatic heterocyclic compound of formulae
Figure imgf000086_0002
wherein the asterix * indicates a bond to Z4 and/or Z5 of formula (8); the asterix ** is a bond to Z^ and/or Z2 of formula (8); and
M is a bivalent radical of formulae (19) ; or
Figure imgf000086_0003
(20) , wherein
Figure imgf000086_0004
the asterix * indicates the bond to Z* or/and Z5 of formula (7); the asterix ** indicates the bond to Zi and/or Z2 of formula (7); and T is a radical of the compounds of formulae (21 ) ; or
Figure imgf000087_0001
(22) , wherein
Figure imgf000087_0002
the asterix * indicates the bond to Z and/or Z5 of compound of formula (8);
X . X2. X3. 4, Xs. Xδ, X7, Xs , X9. X10. X11. X12, X13, Xι , X15 and Xι6 are independently from each other N or a radical of CR^, Z6 is -O-; -S-; or a radical of NR50)
Z7j Z8, Z9j Z10, Zn, Z12, Z13 and Z14 are independently from each other N or a radical of CR^; E, EL G and Gi are independently from each other -O-, -S-, -(SO2)-, -C Cι0alkylene or -(NR52)-;
Rl3, Rl4, Rl5. Rl8, Rl9j R21J R22j R23ι R25J R261 27j R28J R29. R3O1 R31! R32J R33J R3 , R35J R36, R37J R38, R39, R40, R41, 42- R^, R ., R.5, R46, 7, R48J R49 and R51 are independently from each other hydrogen; halogen; C Cι4alkyl, which is saturated or unsaturated, linear or branched, substituted or unsubstituted, or interrupted or uninterrupted with heteroatoms; a radical of phenyl, which substituted or unsubstituted; a of carboxylic acid radical; sulfonic acid radical; hydroxy; nitrile; Crdβalkoxy, (poly)-hydroxy-C2-C -alkoxy; halogen; sulfonylamino; SR60l NHR53; NR^Rss; OR6ι; SO2; COOR62; NR56COR58; or CONR57; and
R12. R16, R 7, R20. R2-.J Rβoi R52, R531 R54, R55, R56. R57, R581 ed ei and R& are each independently of the other hydrogen; unsubstituted or substituted C Cι4alkyl, C2- Cι4alkenyl, C5-C10aryl- rCioaryKC Cioal yl), or -CrCιoalkyl(C5-Cιoaryl); and
An is an anion.
15. Method according to any of claims 1 to 14, wherein D+ is a radical of a cationic aromatic R v<12 An
substituted or unsubstituted heterocyclic compound of formulae (23) N "12
Figure imgf000088_0001
* is a bond to Z and/or Z5 of formula (7); and
Q+ is a biradical of a cationic aromatic substituted or unsubstituted heterocyclic compound of formulae (28) * (30) *— ( V-** ,
Figure imgf000088_0002
(31) or (32) ; wherein
Figure imgf000088_0004
* is a bond to Z4 and/or Z5 of formula (8);
** is a bond to and
Figure imgf000088_0005
and/or Z2 of formula (8); and
M is a bivalent radical of formula
(33) - wherein
Figure imgf000088_0006
* is a bond to 7 and/or Z5 of formula (7) or (8),
** is a bond to and Zi and/or Z of formula (7) or (8); and n is 1 or 0; and
T is a radical of formulae
(34) wherein
Figure imgf000088_0007
R12. i6. i . Ri8. R25, 26. R37, R38 and An are defined as in claim 14.
16. A method according to any of claims 1 to 15 wherein the dyeing with the compounds of formula (1) is carried out in the presence of a reduction agent.
17. A method according to claim 16, wherein the reducing agent is selected from thioglycol acid or salts therof, gycerine monothioglycolate, cystein, 2-mercaptopropionic acid, 2-mer- captoethylamine, thiolactic acid, thioglycerine, sodium sulfite, dithionithe, ammonium sulfite, sodium bisulfite, sodium metabisulfite and hydrochinon.
18. A method according to one of claims 1 to 17, comprising treating the keratin-containing fiber a) optionally with a reduction agent, and b) at least one single sulfide dye of formula (1) as defined in claim 1, and c) optionally with an oxidizing agent.
19. A method according to any of claims 1 to 18, comprising a. dyeing the keratin-contining fiber with a compound of formula (1 ), b wearing the coloured hair for the desired period of time, c. removing the colour applied in step a) from hair by contacting the hair with an aqueous based colour removal composition containg a reducing agent capable of disrupting the -S-S-bonds between the dye molecule and the hair fiber surface to cause the dye molcule to become disassociated from the hair fiber.
20. A composition comprising at least one dye of formula (1) as defined in claim 1.
21. A composition according to claim 20 in form of a shampoo, conditioner, gel or emulsion.
22. A composition according to claim 20 or 21 comprising at least one single dye of formula (1) as defined in claim 1 and a direct dye and/or a reactive dye.
23. Compounds of formula
(1') R -(Zι)r- -Y," -(Z2)q R. , wherein n
Ri and R2 each independently from each other are a residue of an organic dye; Yi and Y2 independently from each other are CrC10alkylene; Z and Z2 independently from each other are -C(O)-; -C2-Cι2alkenylene-; -(CH2CH2-O)1-5-; CrC10alkylene(C5-C10arylene); C5-Cι0arylene; C5-Cι0cycloalkylene, -C(O)O-, -OCO-; R3 -N(R3)-; - — ; -CON(R4)-; -(R5)NC(O)-; -O- -S-; -S(O)-; or -S(O)2-; R4 R3, l^and R5 are each independently from each other hydrogen; CrC14alkyl; C2-Cι alkenyl; C6-C10aryl; Cι-C5alkyl-C5-Cιoaryl; or-Cs-doCβ-Cioaryl; r, q and n independently from each other are 0; or 1 , if n is 0,
Z3 is hydrogen; and if n is 1 , Z3 is -S-.
24. Compounds of formulae
Figure imgf000090_0001
R6 is hydrogen; unsubstituted or substituted CrC1 alkyl; C5-Cι0cycloalkyl;C2-Cι alkenyl; C5- C10aryl-(Cι-Cι0alkyl); CrC10alkyl-(C5-Cιoaryl); C5-Cι0aryl; and R64 is hydrogen; unsubstituted or substituted, straight-chain or branched, interrupted or uninterrubted Cι-Cι4alkyl, C5-Cι0cycloalkyl, C5-Cι0aryl, or C5-Cι0aryl-(Cι-C10alkyl); C Cι0alkyl(C5-C10aryl); __^ O R67 is hydrogen; or a radical of formula (35a) — NReg ; Rc
Y10 is unsubstituted or substituted, straight-chain or branched, monocyclic, from C3-alkyl upwards, or polycyclic, from C5-alkyl upwards, interrupted or uninterrupted, Ci-Ci0alkylene; C5-Cιoarylene-(CrC10alkylene); Cι-Cι0alkylene-(C5-Cι0arylene); or-C5- C10arylene; and
R68and R6gare each independently of the other hydrogen, unsubstituted or substituted Cι- Cι4alkyl, C2-Cι alkenyl, -C5-Cιoarylen-(Cι-Cι0alkyl), -Cι-Cιoalkylen(C5-C10aryl), C5- C10aryl, (36) , wherein
Figure imgf000091_0001
R7ι is hydrogen; unsubstituted or substituted C Cι alkyl; C5-Cι0cycloalkyl; C2-C 4alkenyl; C5- C 0aryl; Cι-C10alkyl-(C5-C10aryl); C5-C10aryl-(Cι-Cιoalkyl); R72and R73are each independently of the other hydrogen; d-C alkyl; C2-C1 alkenyl; a radical of acarboxylic; a radical of a sulfonic acid; C5-Cιoaryl; hydroxy, nitril, Cι-Cι6alkoxy, (poly)-hydroxy-C2-C4-alkoxy, carboxylic acid;; halogen; sulfonylamino; SR60; NHRs3; NR54R55; OR61; COOR62; NR56COR58; or CONRs7; R53, R54. Res, R56. R57, R58. Reo, Rei and R62 are each independently of the other hydrogen; unsubstituted or substituted C Cι4alkyl; C2-Cι4alkenyl; -C5-Cιoarylen-(Cι-Cι0alkyl); -d- C10alkylene(C5-Cιoaryl); orC5-Cι0aryl;
(37) wherein
Figure imgf000091_0002
R76and R77are each independently of the other hydrogen, CrC1 alkyl, which is saturated or unsaturated, linear or branched, substituted or unsubstituted, or interrupted or uninterrupted with heteroatoms; a radical of phenyl, which substituted or unsubstituted; a radical of carboxylic acid; C5-Cιoaryl; a radical of hydroxy, nitril, CrCι6alkoxy, (poly)- hydroxy-C2-C4-alkoxy, carboxylic acid, sulfonic acid; halogen, sulfonylamino, SR60> NHR53 or NR5 R55. OR6ι, SO2] COOR6 l NRgβCORgs, CONR57;
R53, R54 , es. R56, R57, R58, Reo. Rδi and R62 are each independently of the other hydrogen, unsubstituted or substituted CrC14alkyl, C2-Cι4alkenyl, -C5-Cιoaryl-(C Cιoalkyl), -d- C10alkyl(C5-C10aryl) or C5-Cι0aryl;
(38) , wherein
Figure imgf000091_0003
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