Water soluble naphthylazopyrazolone dyestuffs having fiber-reactive groups of the vinylsulfone series

US4963661A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Horst Tappe · Dietzenbach, DE
• Dieter Oehme · Flörsheim, DE
• Ludwig Schlafer
• Werner Russ · Flörsheim, DE

Key dates

• Filing date: May 24, 1988
• Grant date: Oct 16, 1990
• Expiry date: May 24, 2008

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B62/51
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Water-soluble monoazo compounds according to the general formula (1) below having valuable fiber-reactive dyestuff properties which dye carboxamido- and/or hydroxy-containing materials, in particular cellulose fibers, in fast yellow to orange hues. ##STR1## in which the symbols denote: M is hydrogen or an alkali metal, PA1 R.sup.1 is hydrogen, methyl, ethyl, methoxy, ethoxy, chlorine, bromine, carboxy or sulfo, PA1 R.sup.2 is hydrogen, methyl, ethyl, methoxy, ethoxy, chlorine, or bromine, PA1 R is carboxy or lower carbalkoxy, PA1 n is the number zero or 1, PA1 X and Y independently of each other are each .beta.-thiosulfatoethyl or .beta.-sulfatoethyl or vinyl, however, in the case of X and/or Y being equal to vinyl the index n must be 1.