2-aminothiophene radical substituted by an electron withdrawing group

US4837269A · kind A · utility

Assignee

• BASF SE

Inventors

• Karl-Heinz Etzbach · Bischofswerda, DE
• Guenter Hansen · Ludwigshafen, DE
• Ernst Schefczik
• Helmut Reichelt · Neustadt, DE

Key dates

• Filing date: Jun 30, 1987
• Grant date: Jun 6, 1989
• Expiry date: Jun 30, 2007

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B31/14
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Disazothiphene dyes of the formula ##STR1## where X is an electron withdrawing group, Z is an electron withdrawing group, D is the radical of a diazo component and K is the radical of a coupling component, are highly suitable for dyeing synthetic fibers, in particular polyesters.