| abstract |
Reactive dyes of the formula wherein R, hydrogen or optionally substituted C 1-4 alkyl or phenyl, R 2 hydrogen or optionally substituted C 1-4 alkyl, R 3 hydrogen, cyano, carbamoyl or sulfomethyl, R 4 and R 5 independently of one another hydrogen, C 1 -4- alkyl, C 1-4 alkoxy, halogen, carboxy or sulfo, X fluorine, chlorine or bromine, and Z is an optionally substituted benzothiazolyl (2) phenyl radical, are suitable for dyeing and printing cellulose fibers, and give colorations in brilliant greenish-yellow tones. |