Water-soluble azo compounds containing a fiber-reactive group of the vinylsulfone series, suitable as dyestuffs

US5021559A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Hartmut Springer · Königstein, DE
• Uwe Reiher · Hofheim, DE

Key dates

• Filing date: May 21, 1990
• Grant date: Jun 4, 1991
• Expiry date: May 21, 2010

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B62/507
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Water-soluble azo compounds of the general formula D--N.dbd.N--K are described, which have advantageous fiber-reactive dye properties and dye carboxamido-containing and in particular hydroxy-containing materials, such as wool and in particular cellulose fiber materials, in hues which have high color strength and good fastness properties. In the formula D--N.dbd.N--K, the symbols have the following meanings: PA0 D is a radical of the general formula ##STR1## in which Y is a vinyl group or an ethyl group which can be eliminated in the .beta.-position by an alkaline radical and R is a hydrogen atom, a nitro, lower alkyl, lower alkoxy, carboxyl or hydroxyl group or a halogen atom; PA0 K is a radical of a mono-coupleable water-soluble coupling component, which can additionally contain an azo group, or the radical of a doubly-coupleable water-soluble coupling component, each from the series of aminobenzenes, phenols, naphthols, aminonaphthols, acylaminonaphthols, dihydroxynaphthalenesulfonic acids, phenylazoaminonaphtholsulfonic acids, naphthylazoaminonaphtholsulfonic acids, 5-pyrazolones, 5-aminopyrazoles, acetoacetylarylides, 2-hydroxy-6-pyridones and hydroxyquinolines, it also being p…