摘要:
Azo dyes useful for dyeing natural or synthetic substrates have the formula ##STR1## where n is from 1 to 4,q is 1 or 2,L.sup.1 is hydrogen or C.sub.1 -C.sub.3 -alkyl,L.sup.2 is acetyl, carbamoyl or hydroxysulfonyl, andD is the radical of a diazo component.
摘要:
##STR1## where p is from 1 to 2 and q is from 0 to 1 are useful in free form or as copper, chromium, iron, cobalt or nickel complexes for dyeing leather.
摘要:
Quaternized azo dyes whose diazo components are derived from a five-membered nitrogen-containing aromatic aminoheterocycle and whose coupling components are derived from the aniline series are prepared by reacting to corresponding neutral dye-bases with an alkylating agent in .gamma.-butyrolactone as inert diluent.
摘要:
The invention relates to novel thienone compounds useful in dyeing fibers, of the formula: ##STR1## where R.sup.1 is cyano, C.sub.1 -C.sub.4 -alkoxycarbonyl, carbamoyl or C.sub.1 -C.sub.4 -monoalkylcarbamoyl or -dialkylcarbamoyl,R.sup.2 is hydrogen, C.sub.1 -C.sub.8 -alkyl, substituted or unsubstituted phenyl, furyl, thienyl or halogen,X is nitrogen or CR.sup.4 where R.sup.4 is hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxycarbonyl, cyano or substituted or unsubstituted phenyl, andR.sup.3 is an aniline, thiazole, indole, styrol or isoindole radical, with the proviso that if R.sup.1 is cyano, X is CH and R.sup.3 is 4-dimethylaminophenyl or styryl, then R.sup.2 is not methyl or phenyl and that if R.sup.1 is cyano, X is CH and R.sup.3 is phenyl or 4-methoxyphenyl, then R.sup.2 is not phenyl.
摘要:
Azo dyes of the formula ##STR1## where D is the radical of a diazo component, andX is substituted or unsubstituted C.sub.2 -C.sub.8 -alkylene,in the form of the free acid or its salts, the use thereof for dyeing or printing natural or synthetic substrates, sulfopyridones as coupling components for these dyes, and a process for preparing them.
摘要:
Dye mixtures useful for dyeing or printing textile fibers or fabrics contain from 40 to 75% by weight, based on the weight of the dyes, of a dye of the formula ##STR1## where R is C.sub.1 -C.sub.4 -alkyl and n is 1 and from 25 to 60% by weight, based on the weight of the dyes, of a dye of the abovementioned formula where R is C.sub.1 -C.sub.4 -alkyl and n is 2.
摘要:
A process for preparing diaminopyridines of the formula ##STR1## where one of the two radicals X.sup.1 and X.sup.2 is hydrogen, C.sub.1 -C.sub.4 -alkyl, halogen or nitro and the other is cyano,R.sup.1 is hydrogen, C.sub.1 -C.sub.4 -alkyl or phenyl,R.sup.2 and R.sup.3 are each hydrogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy,R.sup.4 is hydrogen or C.sub.1 -C.sub.4 -alkyl, andR.sup.5 is optionally substituted C.sub.1 -C.sub.10 -alkyl, C.sub.3 -C.sub.4 -alkenyl or C.sub.5 -C.sub.7 -cycloalkyl,by reacting dichloropyridines of the formula ##STR2## in a first step with an amine of the formula R.sup.5 -NH.sub.2 at from 10.degree. to 80.degree. C. in the presence of a base and of an inert organic diluent and/or water, then removing the diluent and thereafter, with or without prior intermediate isolation of the reaction product, comprises carrying out the second step in a melt at from 90.degree. to 165.degree. C. and at a pH from 3.5 to 6.5 using from 1.3 to 3 mol of aniline IV are used per mole of dichloropyridine II.
摘要:
Polyazo dyes of the formula ##STR1## where n, Y.sup.1, Y.sup.2, Y.sup.3, Y.sup.4, X, R.sup.1, R.sup.2 and R.sup.3 are each as defined in more detail in the description are useful for dyeing natural or synthetic substrates.
摘要:
Nitro dyes of the formula ##STR1## where X.sup.1 and X.sup.2 are hydrogen, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy or pyrrolidin-2-on-1-yl, X.sup.3 is hydrogen or C.sub.1 -C.sub.6 -alkyl, and X.sup.4 is a radical of the formula ##STR2## where R.sup.1 is hydrogen, substituted or unsubstitued C.sub.1 -C.sub.12 -alkyl, substituted or unsubstituted C.sub.3 -C.sub.7 -cycloalkyl or substituted or unsubstituted phenyl, R.sup.2 and R.sup.3 are hydrogen, C.sub.1 -C.sub.6 -alkyl or C.sub.1 -C.sub.6 -alkoxy, R.sup.4 is hydrogen, methyl, ethyl, methoxy or ethoxy, and R.sup.5 is hydrogen or C.sub.1 -C.sub.6 -alkyl, are useful for dyeing or printing textile materials.