Water-soluble monoazo dyestuff containing a phenylene diazo component

Abstract

Abstract Water-soluble monoazo-dyestuff of the formula ##STR1## IN WHICH R is alkoxy from 1 to 4 carbon atoms, alkyl from 1 to 4 carbon atoms, alkyl from 1 to 4 carbon atoms, chlorine or bromine, R' is hydrogen, lower alkoxy from 1 to 4 carbon atoms, lower alkyl from 1 to 4 carbon atoms, chlorine or bromine, and X is --SO 2 --CH = CH 2 , --SO 2 --CH 2 --CH 2 --OH, --SO 2 --CH 2 --CH 2 --Cl, --SO 2 --CH 2 --CH 2 --O--SO 3 H, --SO 2 --CH 2 --CH 2 --S--SO 3 H, --SO 2 --CH 2 --CH 2 --O--PO 3 H 2 , --SO 2 --CH 2 --CH 2 --N (lower alkyl) 2 or [--SO 2 --CH 2 --CH 2 --N (lower alkyl) 3 ] .sup.( + ) halide.sup.( - ), said dyestuffs being highly suitable for the dyeing or printing of leather, wool, silk, polyurethane and polyamide fibres, particularly, however, of native or regenerated cellulose fibres in the presence of alkaline agents, the dyeings and prints obtainable on cellulose fibres being distinguished by good to very good fastness properties to light and to wetting.

Inventors

• 👤 Ludwig Schlafer
• 👤 Ernst Hoyer

Bibliographic Details