EP0877775A2 - Colorants disazo acides et sulfonamides utilises en tant que produits intermediaires de ceux-ci - Google Patents

Colorants disazo acides et sulfonamides utilises en tant que produits intermediaires de ceux-ci

Info

Publication number
EP0877775A2
EP0877775A2 EP97901041A EP97901041A EP0877775A2 EP 0877775 A2 EP0877775 A2 EP 0877775A2 EP 97901041 A EP97901041 A EP 97901041A EP 97901041 A EP97901041 A EP 97901041A EP 0877775 A2 EP0877775 A2 EP 0877775A2
Authority
EP
European Patent Office
Prior art keywords
formula
alk
radical
hydroxysulfonyl
alkyl
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP97901041A
Other languages
German (de)
English (en)
Inventor
Gunther Lamm
Helmut Reichelt
Gerhard Wagenblast
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dystar Textilfarben GmbH and Co Deutschland KG
Original Assignee
BASF SE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BASF SE filed Critical BASF SE
Publication of EP0877775A2 publication Critical patent/EP0877775A2/fr
Ceased legal-status Critical Current

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Classifications

    • 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
    • C09B62/00—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves
    • C09B62/44—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves with the reactive group not directly attached to a heterocyclic ring
    • C09B62/503—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves with the reactive group not directly attached to a heterocyclic ring the reactive group being an esterified or non-esterified hydroxyalkyl sulfonyl or mercaptoalkyl sulfonyl group, a quaternised or non-quaternised aminoalkyl sulfonyl group, a heterylmercapto alkyl sulfonyl group, a vinyl sulfonyl or a substituted vinyl sulfonyl group, or a thiophene-dioxide group
    • C09B62/507—Azo dyes
    • C09B62/513—Disazo or polyazo dyes
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C311/00—Amides of sulfonic acids, i.e. compounds having singly-bound oxygen atoms of sulfo groups replaced by nitrogen atoms, not being part of nitro or nitroso groups
    • C07C311/30—Sulfonamides, the carbon skeleton of the acid part being further substituted by singly-bound nitrogen atoms, not being part of nitro or nitroso groups
    • C07C311/37—Sulfonamides, the carbon skeleton of the acid part being further substituted by singly-bound nitrogen atoms, not being part of nitro or nitroso groups having the sulfur atom of at least one of the sulfonamide groups bound to a carbon atom of a six-membered aromatic ring
    • C07C311/38—Sulfonamides, the carbon skeleton of the acid part being further substituted by singly-bound nitrogen atoms, not being part of nitro or nitroso groups having the sulfur atom of at least one of the sulfonamide groups bound to a carbon atom of a six-membered aromatic ring having sulfur atoms of sulfonamide groups and amino groups bound to carbon atoms of six-membered rings of the same carbon skeleton
    • C07C311/44—Sulfonamides, the carbon skeleton of the acid part being further substituted by singly-bound nitrogen atoms, not being part of nitro or nitroso groups having the sulfur atom of at least one of the sulfonamide groups bound to a carbon atom of a six-membered aromatic ring having sulfur atoms of sulfonamide groups and amino groups bound to carbon atoms of six-membered rings of the same carbon skeleton having the nitrogen atom of at least one of the sulfonamide groups bound to a carbon atom of a six-membered aromatic ring
    • 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
    • C09B33/00—Disazo and polyazo dyes of the types A->K<-B, A->B->K<-C, or the like, prepared by diazotising and coupling
    • C09B33/02—Disazo dyes
    • C09B33/08—Disazo dyes in which the coupling component is a hydroxy-amino compound
    • C09B33/10—Disazo dyes in which the coupling component is a hydroxy-amino compound in which the coupling component is an amino naphthol

Definitions

  • the present invention relates to new disazo dyes of the formula I.
  • R 1 is hydrogen, hydroxysulfonyl or a radical of the formula
  • R 2 is hydrogen or R 2 and R 1 together are a radical of the formula
  • R 3 is hydrogen, hydroxysulfonyl, C 1 -C 4 alkyl, halogen or a radical of the formula SO 2 -OAr, SO 2 -N (Ar) alk or SO 2 -NHAr or R 3 and R 2 together are a radical of the formula CO -NZ 1 -Y
  • R 4 is hydrogen, hydroxysulfonyl, pyrrolidinylsulfonyl, piperidynylsulfonyl, morpholinylsulfonyl or a radical of the formula CO-Ar, CO-OAlk, CO-NHAr, CO-N (Ar) Alk, CO-N (Alk) 2 , SO 2 -Alk, SO 2 -OAr, SO 2 -N (Alk) 2 , SO 2 -NHAlk, SO 2 -N (Ar) Alk or SO 2 -NHAr,
  • R 5 is hydrogen, C 1 -C 4 alkyl, halogen or hydroxysulfonyl and
  • Alk for C 1 -C 8 alkyl which is interrupted by 1 to 3 oxygen atoms in ether function or by 1 sulfur atom or 1 sulfonyl group and by hydroxy, C 1 -C 4 alkanoyloxy, benzoyloxy, sulfato, halogen, cyano, carbamoyl, carboxy, Hydroxysulfonyl, phenoxy, phenyl or hydroxysulfonylphenyl may be substituted, or C 5 -C 8 cycloalkyl,
  • C 1 -C 4 alkyl phenyl- (C 1 -C 4 ) alkyl, halogen, C 1 -C 4 alkoxy, C 1 -C 4 alkoxy- (C 1 -C 4 ) alkyl, phenoxy, Hydroxy, carboxy,
  • G represents phenyl, which can be substituted by C 1 -C 4 alkyl, carboxyl, hydroxysulfonyl or C 1 -C 4 alkanoylamino, or
  • Naphthyl which can be substituted by hydroxysulfonyl, where at least one of the radicals R 1 , R 2 , R 3 , R 4 or R 5 and at least one of the radicals R 6 , R 7 or R 8 are not hydrogen,
  • Sulfonamides as their intermediates and the use of the new dyes for dyeing natural or synthetic substrates.
  • the object of the present invention was to provide new acid dyes based on disazo dyes which are distinguished by advantageous performance properties.
  • R 3 and R 2 together represent the radical of the formula CO-NZ 1 -Y, this radical can in each case be linked to the ring positions of R 2 and R 3 via Y or CO.
  • substituted alkyl radicals occur in the above formula, they generally have 1 or 2 substituents.
  • alkyl radicals which are interrupted by oxygen atoms in ether function occur in the formulas mentioned above, preference is given to those alkyl radicals which are interrupted by 1 or 2 oxygen atoms in ether function.
  • R 3 , R 5 , R 6 , R 7 , R 8 and alk are, for example, methyl, ethyl, propyl, isopropyl, butyl, isobutyl, sec-butyl, tert-butyl, fluorine, chlorine or bromine.
  • Alk residues are furthermore, for example, pentyl, isopentyl, neopentyl, tert-pentyl, hexyl, 2-methylpentyl, heptyl, 1-ethylpentyl, octyl, 2-ethylhexyl, isooctyl (the above term isooctyl is a trivial name and comes from those obtained after oxo synthesis Alcohols - see Ulimann's Encyclopedia of
  • Naphth-2-yl 2-hydroxysulfonylnaphth-1-yl, 5-hydroxysulfonylnaphth-1-yl or 5-hydroxysulfonylnaphth-2-yl.
  • Residues Z 1 are, like also alk, for example cyclopentyl, cyclohexyl, cycloheptyl or cyclooctyl.
  • the rest Q stands for hydroxy or a group which can be split off under alkaline reaction conditions.
  • groups are, for example, chlorine, bromine, C 1 -C 4 -alkylsulfonyl, phenylsulfonyl, OSO 3 H, SSO 3 H, OP (O) (OH) 2 , C 1 -C 4 -alkylsulfonyloxy, phenylsulfonyloxy, C 1 -C 4 -Al- kanoyloxy, C 1 -C 4 dialkylamino, cyanamino or a radical of the formula
  • Anions that can be used include fluoride, chloride, bromide, iodide, mono-, di- or trichloroacetate, methyl sulfonate, phenyl sulfonate or 2- or 4-methylphenyl sulfonate.
  • R 1 and R 4 are, for example, benzoyl-, 2-, 3- or 4-methylbenzoyl, 2,3-, 2,4-, 2,5-, 2,6-, 3,4- or 3,5- Dimethylbenzoyl, methoxycarbonyl, ethoxycarbonyl, propoxycarbonyl, isopropoxycarbonyl, butoxycarbonyl, methylsulfonyl, ethylsulfonyl, propylsulfonyl, isopropylsulfonyl or butylsulfonyl.
  • R 1 are furthermore, for example, 5-methyl-, 5-ethyl-, 5-propyl-, 5-butyl or 5-phenyl-1,3,4-oxadiazol-2-yl, 3-methyl-, 3-ethyl- , 3-propyl-, 3-butyl- or 3-phenyl-1,2,4-oxadiazol-5-yl, phenylsulfonyl, 2-, 3- or 4-methylphenylsulfonyl or 2,3-, 2,4-, 2nd , 5-, 2,6-, 3, 4- or 3,5-dimethylphenylsulfonyl.
  • R 3 , R 6 , R 7 and R 8 are, like R 1 and R 4 , phenoxysulfonyl or 2-, 3- or 4-methylphenoxysulfonyl.
  • R 3 , R 4 , R 6 , R 7 and R 8 are furthermore, for example, N-phenyl-N-methylsulfamoyl, N-phenyl-N-ethylsulfamoyl, N-phenyl-N-propylsulfamoyl, N-phenyl-N-butylsulfamoyl, Phenylsulfamoyl or 2-, 3- or 4-methylphenylsulfamoyl.
  • R 4 , R 6 , R 7 and R 8 are furthermore, for example, dimethylsulfamoyl, diethylsulfamoyl, dipropylsulfamoyl, dibutylsulfamoyl, N-methyl-N-ethylsulfamoyl, bis (2-hydroxyethyl) sulfamoyl, bis (carboxymethyl) sulfamoyl, bis (2-carboxyethyl ) sulfamoyl, methylsulfamoyl, ethylsulfamoyl, propylsulfamoyl, isopropylsulfamoyl, butyl sulfamoyl, 2-hydroxyethylsulfamoyl, carboxymethylsulfamoyl or 2-carboxyethylsulfamoyl.
  • Residues R 4 , R 6 , R 7 and R 8 are furthermore, for example, dimethylcarbamoyl, diethylcarbamoyl, dipropylcarbamoyl, dibutylcarbamoyl, N-methyl-N-ethylcarbamoyl, bis (2-hydroxyethyl) carbamoyl, bis (carboxymethyl) carbamoyl, bis (2-carboxyethyl ) carbamoyl, N-phenyl-N-methylcarbamoyl, N-phenyl-N-ethylcarbamoyl, N-phenyl-N-propylcarbamoyl or N-phenyl-N-butylcarbamoyl.
  • R 4 radicals are furthermore, for example, methylcarbamoyl, ethylcarbamoyl, propylcarbamoyl, isopropylcarbamoyl, butylcarbamoyl, 2-hydroxyethylcarbamoyl, carboxymethylcarbamoyl or 2-carboxyethylcarbamoyl.
  • R 6 , R 7 and R 8 are furthermore, for example, 2-hydroxyethylsulfonyl, 2-chloroethylsulfonyl, 2-sulfatoethylsulfonyl or 2-acetyloxyethylsulfonyl.
  • Suitable salts are metal or ammonium salts.
  • Metal salts are in particular the lithium, sodium or potassium salts.
  • Ammonium salts in the sense of the invention are understood to mean those salts which have either unsubstituted or substituted ammonium cations.
  • Substituted ammonium cations are, for example, monoalkyl, dialkyl, trialkyl, tetraalkyl or benzyltrialkylammonium cations or those cations which are derived from nitrogen-containing five- or six-membered saturated heterocycles, such as pyrrolidinium, piperidinium, morpholinium or piperazinium cations or their N, monononium cations or N, n -dialkyl substituted products.
  • Alkyl is generally to be understood as straight-chain or branched C 1 -C 20 -alkyl which can be substituted by 1 to 3 hydroxyl groups and / or interrupted by 1 to 4 oxygen atoms in ether function.
  • Disazo dyes of the formula I which have 3, 4 or 5, in particular 3 or 4, hydroxysulfonyl groups are preferred.
  • Disazo dyes of the formula I which have 1 or 2 carboxy groups are also preferred.
  • disazo dyes of the formula I which have 2 hydroxysulfonyl groups, 2 hydroxyl groups and optionally 1 carboxy group.
  • disazo dyes of the formula I in which alk for C 1 -C 6 -alkyl, which is interrupted by 1 or 2 oxygen atoms in ether function or 1 sulfonyl group and by hydroxy, C 1 -C 4 -alkanoyloxy, sulfato, chlorine, cyano, Carboxy, hydroxysulfonyl, phenyl or hydroxysulfonylphenyl may be substituted.
  • disazo dyes of the formula I in which Ar is phenyl which is substituted by C 1 -C 4 -alkyl, C 1 -C 4 -alkoxy, carboxy,
  • SO 2 -N (Alk) 2 , SO 2 -G, SO 2 -OG, SO.-NHG or SO 2 -N (Alk) G may be substituted.
  • Disazo dyes of the formula II are also preferred .
  • R 1 , R 2 , R 3 , R 4 , R 5 , X 1 and X 2 have the meaning given above and R 9 is in the 3- or 4-position.
  • R 1 , R 2 , R 3 , R 4 , R 5 , ⁇ 1 and X 2 have the meaning given above and R 10 is in the 3- or preferably 4-position.
  • disazo dyes of the formula I in which R 6 , R 7 or R 8 are for a radical of the formula
  • Disazo dyes of the formula I in which R 3 and / or R 7 for one The rest of the formula SO 2 "N (Ar) Alk or SO 2 -NHAr is of particular importance.
  • the dyes of the general formulas IV and V should be emphasized
  • R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , X 1 , X 2 , alk and Ar have the meaning given above and the sulfonamide group in the 3-position or preferably in 4- Position.
  • the ring A may be benzo-fused and
  • Alk C 1 -C 8 alkyl which is interrupted by 1 to 3 oxygen atoms in ether function or by 1 sulfur atom or 1 sulfonyl group and by hydroxy, C 1 -C 4 alkanoyloxy, benzoyloxy, sulfato, halogen, cyano, carbamoyl, carboxy, hydroxysulfonyl , Phenyl or hydroxysulfonylphenyl may be substituted, or C 5 -C 8 cycloalkyl,
  • U 1 is hydrogen, C 1 -C 4 alkyl, which is optionally by
  • R 1 , R 2 , R 3 , R 4 and R 5 have the meaning given above, the ring A 1 benzo-fused and with hydroxysulfonyl, carboxyl,
  • Alk C 1 -C 8 alkyl which is interrupted by 1 to 3 oxygen atoms in ether function or by 1 sulfur atom or 1 sulfonyl group and by hydroxy, C 1 -C 4 alkanoyloxy, benzoyloxy, sulfato, halogen, cyano, carbamoyl, carboxy, hydroxysulfonyl , Phenyl or hydroxysulfonylphenyl may be substituted, or C 5 -C 8 cycloalkyl and the sulfonamide radical is in the 3- or 4-position, particularly preferred.
  • dyes of the formula IVb in which ring A is substituted once or twice with carboxy or hydroxysulfonyl are preferred.
  • Disazo dyes of the formulas Ia to Ig are further preferred.
  • T 1 is Alk or Ar and T 2 is hydrogen or hydroxysulfonyl and X 1 , X 2 , R 3 , R 4 , R 6 , R 7 , R 8 , Y, Z 1 , Alk and Ar each have the abovementioned meaning.
  • disazo dyes of the formulas I and Ia to In in which R 6 and R 8 are each hydrogen and R 7 is a radical R 9 which has the abovementioned meaning, and in particular a radical of the formula SO 2 -N (Ar) Alk, wherein Ar and Alk each have the meaning given above.
  • disazo dyes of the formulas I and Ia to In which are a radical of the formula SO 2 -CH CH 2 or in particular SO 2 -C 2 H 4 -Q, in which Q has the abovementioned meaning and in particular denotes sulfato, chlorine or acetyloxy , exhibit.
  • Disazo dyes of the formula I in which R 1 , R 6 , R 7 or R 8 , and in particular of the formulas II, III, IV, IVa and IVb, in which R i is an oxdiazole radical, are also preferred.
  • disazo dyes of the formula I are preferred in which the substituents are selected from a combination of the preferred substituents listed above.
  • the new disazo dyes of the formula I can be obtained in a manner known per se.
  • R 6 , R 7 and R 8 each have the abovementioned meaning, are coupled.
  • Naphthalene of formula VII is coupled and then D 1 -NH 2 is diazotized and coupled to the dye thus obtained, can be obtained.
  • the dyes of the formula I according to the invention are advantageously suitable for dyeing natural or synthetic substrates, in particular wool, leather or polyamide.
  • the new dyes can be used either alone or as a mixture with one another or as a mixture with other dyes.
  • the present invention further encompasses a method of dyeing wool at pH 3 to 7 using disazo dyes with a residue SO 2 -C 2 H 4 -Q 1 .
  • the previously known reactive anchor-bearing azo dyes require special dyeing processes for wool. It has now been found that the new reactive-anchoring dyes, especially those of the formula III in which R 10 is a radical of the formula SO 2 -C 2 H 4 -Q 1 , lead to excellent dyeing results by conventional wool dyeing methods under acidic conditions.
  • the present invention furthermore relates to sulfonamides of the formula X in which ring A can be fused to benzo
  • Alk C 1 -C 8 alkyl which is interrupted by 1 to 3 oxygen atoms in ether function or by 1 sulfur atom or 1 sulfonyl group and by hydroxy, C 1 -C 4 alkanoyloxy, benzoyloxy, sulfato, halogen, cyano, carbamoyl, carboxy, hydroxysulfonyl , Phenyl or hydroxysulfonylphenyl may be substituted, or C 5 -C 8 cycloalkyl,
  • U 1 is hydrogen, C 1 -C 4 alkyl, which is optionally by
  • the present application also relates to sulfonamides of the formula XI . where n is a number 1 or 2 and
  • Alk C 1 -C 8 alkyl which is interrupted by 1 to 3 oxygen atoms in ether function or by 1 sulfur atom or 1 sulfonyl group and by hydroxy, C 1 -C 4 alkanoyloxy, benzoyloxy, sulfato, halogen, cyano, carbamoyl, carboxy, hydroxysulfonyl , Phenyl or hydroxysulfonylphenyl may be substituted, or means C 5 -C 8 cycloalkyl and the sulfonamide radical is in the 3- or 4-position.
  • the new sulfonamides of the formula X can be obtained in a manner known per se.
  • an aniline sulfonic acid of formula XII in which the ring A, Alk and U 1 each have the abovementioned meaning, react with 4-acetylaminobenzenesulfonic acid chloride and the resulting sulfonamide, for example with thionyl chloride or chlorosulfonic acid, in the corresponding sulfonic acid chloride of the formula XIII i , in which the ring A, Alk and U 1 each have the meaning given above.
  • Reduction of the sulfonyl chloride group leads to sulfinic acid, from which the compound of the formula XIV is obtained, for example by reaction with ethylene oxide
  • the sulfonamides of the formula X are obtained by customary deacetylation and / or esterification reactions.
  • the new sulfonamides of the formula XI can also be obtained in a manner known per se.
  • naphthalenesulfonic acid of the formula XV a naphthalenesulfonic acid of the formula XV
  • n and alk has the meaning given above, react with 4-acetylaminobenzenesulfonic acid chloride and deacetylate the resulting sulfonamide in the usual way.
  • the sulfonamides of the formulas X and XI are valuable intermediates for dye synthesis, in particular for the synthesis of the disazo dyes of the formula I.
  • the black powder still contained about 35 g of sodium chloride and 4 g
  • the dye dissolves in water with a blue color and dyes wool in a navy blue tone with excellent lightfastness.
  • the absorption spectrum in water shows a maximum at 600 nm (pH approx. 4).
  • the diazonium salt solution obtained was admixed with very good stirring over the course of 90 minutes with 31.9 g of 1-amino-8-hydroxynaphthalene-3,6-disulfonic acid, which was dissolved in 200 ml of water at a pH of 5.8.
  • a suspension of the red dye of the formula was obtained
  • the dye When dissolved in water at pH approx. 4, the dye has a maximum in the UV-VIS spectrum at 575 nm. It dyes wool, polyamide and leather in a real, blue to navy blue tone.
  • the diazonium salt solution obtained flowed into the solution prepared above within 30 minutes in such a way that the pH of the reaction mixture with sodium bicarbonate could be kept constantly in the range from 6 to 7.8.
  • the blue dye solution obtained was spray-dried at a pH of 6.5.
  • a black powder of the dye of the formula was obtained
  • the dye dissolves in water with a blue color ( ⁇ max : 604 nm and 400 nm at pH ⁇ 4) and dyes wool in a strong dark blue tone with excellent fastness properties.
  • the absorption maximum of an aqueous solution shows a maximum at 518 nm, at pH 7.9 of 546 nm.
  • the dye dissolves in water with a blue color, the absorption spectrum shows maxima at 396 and 582 nm and a shoulder at 625 nm in the visible range.
  • the dye (as a suspension) described in Example 413 a) was neutralized. Then 0.06 mol of the diazonium salt solution of 2-aminoterephthalic acid diethyl ester was added and the pH of the coupling solution was kept at 5.5 to 7.0 with sodium bicarbonate. The finished coupling was spray dried at pH 6.5.
  • the dye of the formula was obtained
  • the powder dissolves in water with a blue hue ( ⁇ max in water: 397 and 585 nm, shoulder at 626 nm) and dyes wool according to the dyeing processes customary for wool dyes (acetic acid to acidic acid) in a blue to blue-black tone with excellent light and wet fastness properties on.
  • Example 415 a The dye described in Example 413 a) (as a suspension) was neutralized. Then 0.06 mole of
  • Diazonium salt of 4-aminodiphenyl sulfone (diazotized in water with hydrochloric acid and sodium nitrite as usual) and kept the pH of the coupling at 5 to 7. The mixture was stirred at a pH of 6.5 for 1 h, then it was spray-dried. A black powder was obtained, which contained 51 g of the dye of the formula in the form of the sodium salt ( ⁇ -n ax in water: 600 nm, at pH 4 to 6). The dye dyes wool in a deep blue-black tone with excellent wet fastness and good light fastness. b) However, when the blue reaction solution was brought to a pH of 10 and stirred at room temperature for 4 h, the new dye of the formula formed
  • This dye could be precipitated with sodium chloride at a pH of 6 to 7.5 and isolated as usual.
  • the black powder dissolves in water with a reddish blue color ( ⁇ max : 570 nm, shoulder at 625 nm) and dyes wool (vinegar to acidic acid) in a deep, reddish blue tone with very good lightfastness.
  • the dyes listed in the following table are obtained in an analogous manner.
  • the resulting suspension was stirred at 45 to 50 ° C. for 2 h, then 100 ml of 25% strength by weight aqueous ammonia solution were added, the mixture was precipitated with 250 g of sodium chloride and suction filtered.
  • the filter cake was taken up with 300 ml of methanol and 500 ml of water, the mixture with 135 g of conc. Sulfuric acid was added and the mixture was stirred for 6 h with evaporative cooling. Then methanol was distilled off with a little water, the precipitate was stirred cold overnight, isolated on a suction filter, washed with a little ice-cold, highly dilute hydrochloric acid and dried. 350 g of the diazo component of the formula were obtained

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

L'invention concerne des colorants disazo de formule (1), dans laquelle un des symboles X1 et X2 représente hydroxy et l'autre amino, et D1 et D2 représentent le reste d'un composant disazo de la série aniline. Elle se rapporte également à des sulfonamides utilisés en tant que produits intermédiaires desdits colorants ainsi qu'à l'utilisation desdits nouveaux colorants pour la teinture de substrats naturels ou synthétiques.
EP97901041A 1996-01-25 1997-01-16 Colorants disazo acides et sulfonamides utilises en tant que produits intermediaires de ceux-ci Ceased EP0877775A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19602542 1996-01-25
DE19602542 1996-01-25
PCT/EP1997/000174 WO1997027248A2 (fr) 1996-01-25 1997-01-16 Colorants disazo acides et sulfonamides utilises en tant que produits intermediaires de ceux-ci

Publications (1)

Publication Number Publication Date
EP0877775A2 true EP0877775A2 (fr) 1998-11-18

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EP97901041A Ceased EP0877775A2 (fr) 1996-01-25 1997-01-16 Colorants disazo acides et sulfonamides utilises en tant que produits intermediaires de ceux-ci

Country Status (7)

Country Link
US (1) US6130320A (fr)
EP (1) EP0877775A2 (fr)
JP (1) JP2000503338A (fr)
AR (1) AR005553A1 (fr)
AU (1) AU1442797A (fr)
ID (1) ID15847A (fr)
WO (1) WO1997027248A2 (fr)

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Publication number Priority date Publication date Assignee Title
DE19640189A1 (de) * 1996-09-30 1998-04-02 Basf Ag Reaktivfarbstoffe mit einem heterocyclischen Anker
US6586617B1 (en) * 1999-04-28 2003-07-01 Sumitomo Chemical Takeda Agro Company, Limited Sulfonamide derivatives
AR032230A1 (es) * 2001-01-16 2003-10-29 Sumitomo Chem Takeda Agro Co Derivado sulfonamida conteniendo una composicion agricola y horticola

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DE65651C (de) * leopold cassella & co. in Frankfurt a. M Verfahren zur Darstellung von primären Disazo- und Tetrazofarbstoffen aus Amidonaphtoldisulfosäure
FR739468A (fr) * 1931-10-11 1933-01-12 Geigy Ag J R Procédé pour la production de colorants disazoïques primaires
CH192050A (de) * 1936-01-30 1937-07-15 Chem Ind Basel Verfahren zur Herstellung eines neuen Azofarbstoffes.
CH192049A (de) * 1936-01-30 1937-07-15 Chem Ind Basel Verfahren zur Herstellung eines neuen Azofarbstoffes.
CH192048A (de) * 1936-01-30 1937-07-15 Chem Ind Basel Verfahren zur Herstellung eines neuen Azofarbstoffes.
CH1371667A4 (de) * 1966-10-12 1970-08-31 Mitsubishi Chem Ind Reaktivfarbstoffhaltige Klotz- oder Färbeflotte bzw. Druckpaste für Textilmaterialien
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JPS582354A (ja) * 1981-06-30 1983-01-07 Sumitomo Chem Co Ltd ジスアゾ反応染料
JPS588764A (ja) * 1981-07-08 1983-01-18 Sumitomo Chem Co Ltd ジスアゾ反応染料
DE3420467A1 (de) * 1984-06-01 1985-12-05 Basf Ag, 6700 Ludwigshafen Reaktivfarbstoffe
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DE59307910D1 (de) * 1992-03-05 1998-02-12 Ciba Geigy Ag Reaktivfarbstoffe, Verfahren zu deren Herstellung und deren Verwendung
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Also Published As

Publication number Publication date
WO1997027248A3 (fr) 1997-08-28
US6130320A (en) 2000-10-10
WO1997027248A2 (fr) 1997-07-31
AU1442797A (en) 1997-08-20
ID15847A (id) 1997-08-14
JP2000503338A (ja) 2000-03-21
AR005553A1 (es) 1999-06-23

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