Dyes of the coumarin series

US4055568A · kind A · utility

Assignee

• BASF SE

Inventors

• Manfred Patsch · Monsheim, DE
• Christos Vamvakaris · Kallstadt, DE

Key dates

• Filing date: Jun 7, 1976
• Grant date: Oct 25, 1977
• Expiry date: Jun 7, 1996

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D06P5/006
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Dyes of the formula: ##STR1## in which Z is unsubstituted or substituted alkyl, alkenyl, cycloalkyl, aralkyl, aryl or heteroaryl or a radical of the formula ##STR2## Z.sup.1, Z.sup.2, Z.sup.3 and Z.sup.4 are hydrogen or unsubstituted or substituted alkyl, cycloalkyl, aralkyl or aryl; PA1 Z.sup.1 and Z.sup.2 or Z.sup.3 and Z.sup.4 may together with the nitrogen form a heterocyclic ring; PA1 Z.sup.1 and Z.sup.2 together with the nitrogen may be a saturated unsubstituted or substituted 5-membered or 6-membered ring condensed on in the ortho-position to the nitrogen; PA1 B is unsubstituted or substituted alkyl, alkenyl, cycloalkyl, aralkyl, aryl or heteroaryl; and PA1 X is imino or oxygen. The dyes give brilliant yellow dyeings having good fastness properties on textile materials, particularly polyester materials, and in plastics.