Phenylazo- or naphthylazobenzenes having thioether groups

US5449762A · kind A · utility

Assignee

• BASF SE

Inventors

• Matthias Wiesenfeldt · Mutterstadt, DE
• Bernd Siegel · Ludwigshafen, DE
• Manfred Patsch · Monsheim, DE

Key dates

• Filing date: Feb 1, 1995
• Grant date: Sep 12, 1995
• Expiry date: Feb 1, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B62/4415
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Reactive dyes of the formula I ##STR1## where n is 0 or 1 PA1 R.sup.1, R.sup.2 and R.sup.3 are in each case hydrogen, C.sub.1 -C.sub.4 -alkyl or phenyl, PA1 R.sup.4 is fluorine, chlorine, bromine, C.sub.1 -C.sub.4 -alkylsulfonyl, phenylsulfonyl or a radical of the formula ##STR2## L is a bridge member, A is unsubstituted or substituted C.sub.2 -C.sub.8 -alkylene, PA1 Y is vinyl or a radical of the formula --CH.sub.2 --CH.sub.2 --Q, Q being a group which can be removed under alkaline reaction conditions, and PA1 D is phenyl or naphthyl, it being possible for these radicals to be substituted, and a process for preparing reactive dyes by oxidation of the abovementioned compounds are described.