GB2106923A - Monoazo compounds - Google Patents

Monoazo compounds Download PDF

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Publication number
GB2106923A
GB2106923A GB08227462A GB8227462A GB2106923A GB 2106923 A GB2106923 A GB 2106923A GB 08227462 A GB08227462 A GB 08227462A GB 8227462 A GB8227462 A GB 8227462A GB 2106923 A GB2106923 A GB 2106923A
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Prior art keywords
weak
compound
formula
medium
parts
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GB08227462A
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GB2106923B (en
Inventor
Eckart Dr Schleusener
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Sandoz AG
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Sandoz AG
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B29/00Monoazo dyes prepared by diazotising and coupling
    • C09B29/06Monoazo dyes prepared by diazotising and coupling from coupling components containing amino as the only directing group
    • C09B29/08Amino benzenes
    • C09B29/0805Amino benzenes free of acid groups
    • C09B29/0807Amino benzenes free of acid groups characterised by the amino group
    • C09B29/0809Amino benzenes free of acid groups characterised by the amino group substituted amino group
    • C09B29/0811Amino benzenes free of acid groups characterised by the amino group substituted amino group further substituted alkylamino, alkenylamino, alkynylamino, cycloalkylamino aralkylamino or arylamino
    • C09B29/082Amino benzenes free of acid groups characterised by the amino group substituted amino group further substituted alkylamino, alkenylamino, alkynylamino, cycloalkylamino aralkylamino or arylamino substituted by halogen
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B29/00Monoazo dyes prepared by diazotising and coupling
    • C09B29/0003Monoazo dyes prepared by diazotising and coupling from diazotized anilines
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B29/00Monoazo dyes prepared by diazotising and coupling
    • C09B29/06Monoazo dyes prepared by diazotising and coupling from coupling components containing amino as the only directing group
    • C09B29/08Amino benzenes
    • C09B29/0805Amino benzenes free of acid groups
    • C09B29/0807Amino benzenes free of acid groups characterised by the amino group
    • C09B29/0809Amino benzenes free of acid groups characterised by the amino group substituted amino group
    • C09B29/0811Amino benzenes free of acid groups characterised by the amino group substituted amino group further substituted alkylamino, alkenylamino, alkynylamino, cycloalkylamino aralkylamino or arylamino
    • C09B29/0823Amino benzenes free of acid groups characterised by the amino group substituted amino group further substituted alkylamino, alkenylamino, alkynylamino, cycloalkylamino aralkylamino or arylamino substituted by CN
    • C09B29/0828Amino benzenes free of acid groups characterised by the amino group substituted amino group further substituted alkylamino, alkenylamino, alkynylamino, cycloalkylamino aralkylamino or arylamino substituted by CN having (Image)

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

Abstract

A compound of formula <IMAGE> in which R1 is hydrogen, chlorine, bromine or iodine; R2 is hydrogen, chlorine or bromine; R3 is -CO-R5; -COOR5; -COOCH2CH2OR5; CO &lparstr& OCH2CH2 &rparstr& 2OR5 or -SO2-R6; where R5 is C1-4alkyl R6 is methyl or ethyl; R4 is (C2-3) alkyl monosubstituted by cyano, or alpha -chloroallyl.

Description

SPECIFICATION Improvements in or relating to organic compounds The invention relates to monoazo compounds par ticularlyforthe use as disperse dyes.
According to the invention there is provided a compound of formula I
in which R1 is hydrogen, chlorine, bromine or iodine; R2 is hydrogen, chlorine or bromine; R3 is-COR; -COOR5; -COOCH2CH2OR5; -COSOCH2CH2s20Rs or -SO2-R6; where R5 is C,-,alkyl R6 is methyl or ethyl; R4 is (C2 3)alkyl monosubstituted by cyano, or y-chloroally.
preferably R1 is R' where R'1 is chlorine or bromine.
Preferably R2 is hydrogen.
Preferably R3 is R'3 where R'3 is -CO-R6; -CO-OR6; -COOCH2CH2O-R6 or -SO2CH3, more preferably -COR6; where the symbol R6 is defined above.
Preferably R4 is-CH3-CHCN.
Preferred compounds of formula I are of formula II
where R', and R'3 are as defined above.
More preferred compounds of formula I are the a and p-modifications of the compound of formula III
where the a-modification has an X-ray diffraction spectra (Cu-Kut-radiation) exhibiting lines at d-values of 19.0 (weak, diffuse); 15.5 (weak); 10.0 (very weak, diffuse); 8.5 (medium); 7.9 (medium); 3.4 (strong, diffuse) and 3.28 (weak, diffuse) A; and where the p-modification has an X-ray diffraction spectra (Cu-K,,-radiation) exhibiting lines at d-values of 16.0 (very weak); 8.4 (strong); 8.0 (weak); 6.7 (medium); 5.65 (medium); 5.10 (weak); 5.05 (weak); 4.25 (weak); 4.15 (weak); 4.02 (weak); 3.92 (weak); 3.86 (medium); 3.78 (weak); 3.65 (medium); 3.58 (medium); 3.51 (very strong); 3.39 (very weak); 3.34 (weak); 3.28 (weak); 3.22 (weak); 3.01 (very weak) and 2.74 (very weak) A.
The p-modification is preferred to the a-modification ofthe compound of formula lil The compounds of formul I may be prepared by diazotising a compound of formula IV
and the coupling it with a compound of formula V
where the symbols R, to R4 are defined above.
The amine of formula IV and the coupling compound of formula V are known or may be produced from known compounds according to known methods. Diazotisation and coupling may be carried out according to known methods.
The p-modification of the compound of formula Ill may be formed directly after coupling by heating the a-modification (so formed on coupling) in an aqueous suspension at a pH above 3 (preferably about 4) to a temperature above 65"C (preferably 75-85"C).
Alternatively, the p-modification may be formed from the a-modification by recrystallisation in an organic medium (for example acetone or a lower alcohol such as ethanol).
When conversion of the a-modification to the p-modification is in an aqueous suspension it is desirable to perform the conversion in the presence of an anionic, cationic or non-ionic surfactant preferably a dispersing agent for example polyvinylsulphonate, dinaphthylmethane disulphonate, an alkali salt of lignin sulphonicacid orcellulosesulphite waste liquor.
The compounds of formula I are useful as disperse dyes particularly in dyeing, padding or printing processes of fibres, threads of substrates derived from synthetic or semi-synthetic hydrophobic high molecular weight organic material. Preferred substrates are linear, aromatic polyesters, cellulose 2'/2 acetate, cellulose triacetate and synthetic polyamides. The substrates may be in losse fibre, yarn or fabric form.
Dyeing, printing or padding may be carried out according to known methods, for example as described in British patent 1,114,433.
The compounds of formula I can be prepared as dyeing preparations. Such preparations are known and may be prepared for example by grinding the dyestuff in the presence of dispersing agents and/or filling agents after which the preparation may be dried by vacuum or dried by atomisation and then on the addition of water dyed, printed or padded in a short or long aqueous dyebath.
The compounds of formula I have good fastness properties. In particular they have good light fastness, thermofixation-, sublimation-, pleatingfastness, wet-fastness (such as water-, sea-water-, wash- and sweat-fastnesses), fastness to solvents, (particularly to dry-cleaning solvents), fastness to softening agents, fastness to rubbing, fastness to over-dyeing, fastness to ozone, fastness to gas fumes, fastness to corrosion, reduction fastness (when dyeing with wool), reserve on wool or cotton and fastness to chlorine properties. The compound of formula I are extremely useful in variuos permanent press processes and in "Soil Release" textile finish processes.
The p-modification of the compound formula Ill also shows good stability and is particularly useful for dyeing at temperatures over 7O'C, especially for cross spool dyeing (where the dyeing liquor is passed through the spool). it is important in cross spool dyeing not to form large crystals that agglomerate on the outer surfaces of the substrates being dyed but to form a fine dispersion (circa 1 s in size) of the dyestuff in solution in dyeing conditions.
The invention will now be illustrated by the following Examples in which all percentages and parts are by weight and all temperatures are in "C.
Example 1 a) 34.5 Parts of 2 - chloro - 4- nitroaniline, 88 parts of concentrated hydrochloric acid and 250 parts of water are stirred together for 12 hours after which 40 parts of ice are added and over a period of 40 minutes 13.8 parts of sodium nitrite in 50 parts of water are added to the mixture at 0 to 2 . The mixture is stirred for a further 2 hours whilst cooling to keep the temperature between 0 and 5" and then the soformed diazonium salt solution is filtered to remove any residual solids.A solution of 55.5 parts of 1 - (N ss- cyanoethyl - N - y- chloroallyl) - amino - 3acetylamino - benzene in 100 parts of glacial acetic acid and 200 parts of 30% hydrochloric acid at 0 to 5 is added dropwise over 45 minutes whilst stirring and cooling (by the addition of ice) to the above formed diazonium salt solution.
b) At the end of the coupling the dyestuff suspension is adjusted to pH 4with approximately 400 parts of a 30% sodium hydroxide solution, whereby the temperature rises to 40-45", after which the dyestuff suspension is heated to 80-85 by introducing steam directly into the solution and this temperature is held for 45 minutes whilst stirring. The p-modification so formed is then filtered off, washed neutral with water and dried.
c) Instead of treating the suspension as in part b) above the dyestuff may be filtered after coupling, washed neutral with water, dried and then recrystallised from ethanol or acetone. In this way the p-modification is formed having a h max in dimethylformamide of 515 nm and is a red shade.
d) The coupling component 1 - (N-ss- cyanoethyl - N - y- chloroallyl) - amino - 3- acetylamino - benzene may be prepared by reacting 40.6 parts of 1 - (N - p - cyanoethyl)amino, 3,acetylamino benzene in 50 parts of water with 10 parts of magnesium oxide, 27 parts of 92% 1,3-dichloropropane (cis,trans) and stirring the mixture for 24 hours at 80"C. After stirring it is cooled and 200 parts of water are added and the reaction product is extracted with chloroform.
EXAMPLES 2 to 12 Further compounds of formula I
in which the symbols R, to R4 are given in the Table below and where the nuances shown in the Table are on polyester material; the dyestuffs being applied to polyester material according to known methods) may be prepared in a similar manner to Example 1a) foliowed by pouring the mixture into 500 parts of water, filtering, washing in non-acidic water and then drying.
TABLE
Example R1 R2 R3 R4 shade h max No.
2 CI H -COC2H5 -CH,CH,CN Red 516 3 Br H -COCH3 do. do. 517 4 H H do. do. scarlet 495 5 Cl CI -COOCH2CH3OC2H5 do. red 517 6 CI H -COCH3 -CH2CH=CHCl do. 521 7 Cl H -CO(CH2)3CH3 -CH2CH2CN do. 516 3 Cl H -COOCH3 do. do. 511 9 Cl H -COO(CH2)3CH3 do. do. 513 10 Cl H -COOCH2CH2OC2H5 do. do. 511 11 Cl H -SO2CH3 do. do. 508 12 Cl H do. -CH2CH=CHCl do. L 514 Application Example a) An ultra disperse dyeing preparation is produced by sand grinding the p-modification of the dyestuff of Example 1 [formed according to Example 1b) or lc)J in the presence of a lignin sulphonate dispersing agent followed by atomisation to give particles of average size 1 y or less and a coupage ratio of 3:10.
b) 6 Parts of the ultra disperse preparation of a) above are dispersed in 1000 parts of water and then introduced into a dyeing autoclave having a circulating liquor of 13,000 parts water and a buffer solution of 30 parts ammonium sulphate and 0.3 parts of formic acid at 60". A precleaned and pressed cross spool (1000 parts of P.E. yarn on a plastic spool) is introduced into the autoclave which is then closed and the liquor is heated over 35 minutes from 60 to 130 . After 15 minutes at 1303 the liquor is cooled to 80 , the bath emptied and the spool thoroughly washed with cold water. The spool is then spin-dried and then further dried in a drying machine. A pure, level red dyeing having a deep shade is produced, substantially free of undesired deposits with extremely good wet- and rub-fastnesses. The backwater of the dyeing is practically colourless and no traces of deposits are found in the dyeing apparatus which can immediately be used for the next dyeing.

Claims (11)

1. A compound of formula I
in which Ri is hydrogen, chlorine, bromine or iodine; R2 is hydrogen, chlorine or bromine; R3 is-COR5; -COORs; -COOCH2CH2OR5; -COSOCH2)2ORs or-SO3-116; where 115 is C,~4alkyl R6 is methyl or ethyl; R4 is (X2~3)alkyl monosubstituted by cyano, or y-chloroallyl.
2. A compound as claimed in Claim 1, in which R, is R' where R' is chlorine or bromine.
3. A compound as claimed in Claim 1 or Claim 2, in which 113 is hydrogen.
4. A compound as claimed in any one of Claim 1 to 3, in which R3 is R'3 where R'3 is-CO-R6,-COOR6; -COOCH2CH2O-R6 or SO2CH3 where 116 is as defined in Claim 1.
5. A compound as claimed in any one of the preceding claims in which R4 is-CH2-CH2CN.
6. A compound as claimed in Claim 1 of the formula Ill
7. The p-modification of the compound of Claim 6, where the p-modification has an X-ray diffraction spectra (CU-K&alpha;1-radiation) exhibiting lines at d-values of 16.0 (very weak); 8.4 (strong); 8.0 (weak); 6.7 (medium); 5.65 (medium); 5.10 (weak); 5.05 (weak); 4.25 (weak); 4.15 (weak); 4.02 (weak); 3.92 (weak); 3.86 (medium); 3.78 (weak); 3.65 (medium); 3.58 (medium); 3.51 (very strong); 3.39 (very weak); 3.34 (weak); 3.28 (weak); 3.22 (weak); 3.01 (very weak) and 2.74 (very weak) A.
8. A process for preparing a compound as claimed in Claim 1 comprising diazotising a compound of formula IV
and then coupling it with a compound of formula V
where the symbols R, to R4 are defined in Claim 1.
9. A compound according to Claim 1 substantially as herein described with reference to any one of Examples 1 to 12.
10. A process according to Claim 8 substantially as herein described with reference to any one of Examples 1 to 12.
11. A substrate when dyed with a compound according to Claim 1 or according to a method substantially as herein described with reference to the application example.
GB08227462A 1981-10-01 1982-09-27 Monoazo compounds Expired GB2106923B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3139092 1981-10-01
DE3146835 1981-11-26

Publications (2)

Publication Number Publication Date
GB2106923A true GB2106923A (en) 1983-04-20
GB2106923B GB2106923B (en) 1984-09-26

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GB08227462A Expired GB2106923B (en) 1981-10-01 1982-09-27 Monoazo compounds

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BR (1) BR8205710A (en)
CA (1) CA1182449A (en)
CH (1) CH653047A5 (en)
ES (1) ES8400471A1 (en)
FR (1) FR2514017B1 (en)
GB (1) GB2106923B (en)
IT (1) IT1189368B (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1487636A (en) * 1965-07-23 1967-07-07 Hoechst Ag Azo dyes and their preparation
NL6915769A (en) * 1968-11-08 1970-05-12
DE2249217A1 (en) * 1972-10-07 1974-04-18 Hoechst Ag PROCESS FOR COLORING SYNTHETIC FIBER MATERIALS FROM ORGANIC SOLVENTS

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IT8249185A0 (en) 1982-09-29
CH653047A5 (en) 1985-12-13
BR8205710A (en) 1983-08-30
CA1182449A (en) 1985-02-12
ES516113A0 (en) 1983-11-01
ES8400471A1 (en) 1983-11-01
FR2514017A1 (en) 1983-04-08
IT1189368B (en) 1988-02-04
GB2106923B (en) 1984-09-26
FR2514017B1 (en) 1986-11-07

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