2-Amino-5-arylazoarylazothiazole compounds

US4250090A · kind A · utility

Assignee

• BASF SE

Inventors

• Heinz Eilingsfeld · Bischofswerda, DE
• Guenter Hansen · Ludwigshafen, DE
• Guenther Seybold · Schifferstadt, DE
• Georg Zeidler · Schifferstadt, DE

Key dates

• Filing date: Mar 27, 1979
• Grant date: Feb 10, 1981
• Expiry date: Mar 27, 1999

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B56/005
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Acid azo dyes containing thiazole coupling components, of the general formula ##STR1## where D is the radical of a diazo component, PA1 R is hydrogen, acetyl, benzoyl or an aliphatic, cycloaliphatic, aromatic or heterocyclic radical, PA1 R.sup.1 and R.sup.2 independently of one another are optionally substituted alkyl, cycloalkyl, aralkyl or aryl, PA1 R.sup.1 may also be hydrogen and PA1 R.sup.1 and R.sup.2 together with the nitrogen may be a heterocyclic radical, and PA1 the radicals D, R, R.sup.1 and/or R.sup.2 may in total contain from 1 to 4 --SO.sub.3 H groups. The deeply colored novel compounds are particularly suitable for dyeing polyamides, and the dyeings obtained have very good lightfastness and wetfastness.