Water-soluble disazo compounds, process for their preparation and their use as dyes

US5405415A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Uwe Reiher · Hofheim, DE
• Werner Russ · Flörsheim, DE

Key dates

• Filing date: Jun 23, 1994
• Grant date: Apr 11, 1995
• Expiry date: Jun 23, 2014

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B62/513
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Water-soluble fiber-reactive disazo compounds of the formula (1) given and defined below are described, which compounds serve as dyes for dyeing and printing hydroxy- and/or carboxamido-containing material, in particular fiber material, such as wool and synthetic polyamide and, in particular, cellulose fiber materials, such as cotton. ##STR1## In this formula M is hydrogen or an alkali metal, the groups Y--SO.sub.2 -- and --SO.sub.2 --Y.sup.0 are fiber-reactive groups from the vinylsulfone series, m is 1 or 2, n is zero or 1, R is a group of the formula (2) or (3) ##STR2## in which R.sup.A is lower alkyl which may be substituted, or is phenyl which may be substituted by sulfo, carboxy, lower alkyl and/or lower alkoxy, X is chlorine, fluorine, hydroxy, alkoxy, cycloalkoxy or alkoxy of 3 to 8 carbon atoms whose alkyl radical is interrupted by --O--, --NH--, --CO--NH-- or --NH--CO--, or is benzyloxy, sulfomethoxy, .beta.-sulfoethoxy, amino, alkylamino, cycloalkylamino or alkylamino of 3 to 8 carbon atoms whose alkyl radical is interrupted by one of the abovementioned hereto groups, or is benzylamino, sulfomethylamino, .beta.-sulfoethylamino or cyanoamino, Z is chlorine, fluorine or a …