Heterocyclic azo dyes

US4820809A · kind A · utility

Assignee

• BASF SE

Inventors

• Udo Bergmann · Darmstadt, DE
• Erwin Hahn · Heidelberg, DE
• Guenter Hansen · Ludwigshafen, DE

Key dates

• Filing date: Jan 11, 1988
• Grant date: Apr 11, 1989
• Expiry date: Jan 11, 2008

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B29/3691
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Novel compounds of the general formula I ##STR1## where X is hydrogen, nitro or unsubstituted or substituted alkyl, alkenyl, cycloalkyl, aryl or hetaryl, Y is cyano, nitro, alkanoyl, aroyl, alkylsulfonyl, arylsulfonyl, carboxyl, a carboxylic ester group or unsubstituted or substituted carbamyl, R is unsubstituted or substituted alkyl or aryl, R.sup.1 is hydrogen or R.sup.2, and R.sup.2 is unsubstituted or substituted alkyl, alkenyl, cycloalkyl, aralkyl or aryl, are useful for dyeing textile fibers, in particular polyesters.