Water-soluble azo compounds, containing a diazo component with a heterocyclic moiety, and a coupling component with a fibre-reactive group, suitable as dyestuffs

US5539088A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Christian Schumacher · Frankfurt am Main, DE
• Werner Russ · Flörsheim, DE

Key dates

• Filing date: Feb 2, 1995
• Grant date: Jul 23, 1996
• Expiry date: Feb 2, 2015

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D06P1/38
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Water-soluble azo compounds are described which possess fiber-reactive properties and which are suitable as dyes for the dyeing of material, in particular fiber material, which contains hydroxy and/or carboxamido groups, examples being cellulosic fiber materials such as cotton, wool and nylon, and which compounds possess, as the radical of a diazo component, a radical of the formula ##STR1## in which R is hydrogen, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, halogen or sulfo and G forms to the benzene ring the radical of a heterocycle which is free from olefinic double bonds and which contains at least one carboxamide group of the formula --CO--N(R.sup.10)-- in which R.sup.10 is hydrogen, alkyl of 1 to 4 carbon atoms or aryl of 6 to 10 carbon atoms which maybe substituted by from 1 to 3 substituents from the group consisting of sulfo, carboxy, alkoxy of 1 to 4 carbon atoms, alkyl of 1 to 4 carbon atoms, halogen, cyano, nitro and amino, and which if desired possesses 1 or 2 further hetero-groups from the series consisting of --O--, --S-- and --N(R.sup.10)-- where R.sup.10 is as defined, and which compounds contain a fiber-reactive radical which is attached to the co…