Fiber-reactive dioxazine dyes containing two vinylsulfonyl moieties

US4997937A · kind A · utility

Assignee

• Ciba-Geigy · US

Inventors

• Athanassios Tzikas · Pratteln, CH
• Peter Aeschlimann · Allschwil, CH

Key dates

• Filing date: Oct 16, 1989
• Grant date: Mar 5, 1991
• Expiry date: Oct 16, 2009

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C317/04
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Dyes suitable for dyeing and printing cellulose-containing fiber materials which produce blue dyeings and prints having good fastness properties. These dyes are of the formula ##STR1## wherein R.sub.1 and R.sub.2 are each independently of the other hydrogen, halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, phenoxy, carboxyl carbamoyl or C.sub.1 -C.sub.4 alkanoylamino; R.sub.3 is hydrogen, sulfo, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, halogen, carboxyl, carbamoyl, N-C.sub.1 -C.sub.4 alkylcarbamoyl, N,N-di-C.sub.1 -C.sub.4 alkylcarbamoyl, C.sub.1 -C.sub.4 alkylsulfonyl, sulfamoyl, N-C.sub.1 -C.sub.4 alkylsulfamoyl or N,N-di-C.sub.1 -C.sub.4 alkylsulfamoyl; R.sub.4 is a radical of the formula ##STR2## R.sub.5 and R.sub.6 are independently of each other hydrogen or unsubstituted or hydroxyl-, sulfo-, sulfato-, carboxyl-, cyano-, halogen-, C.sub.1 -C.sub.4 alkoxycarbonyl-, C.sub.1 -C.sub.4 alkanoyloxy- or carbamoyl-substituted and uninterrupted or, except in the case of methyl, --O--, --S-- or --NH--interrupted C.sub.1 -C.sub.6 alkyl; R' is hydrogen or C.sub.1 -C.sub.6 alkyl; t is an integer from 0 to 4; the phenyl radical (a) is unsubstituted or substituted by C.sub.…