Water-soluble, fiber-reactive phenylazodihydroxy, methyl, cyanopyridine dyestuffs
AssigneeCiba-Geigy Corporation
InventorsArthur Buehler, Alfred Fasciati, Gerd Hoelzle
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Abstract
Azo dyestuffs containing at least one acidic group imparting solubility in water and the grouping of the formula ##SPC1##
Claims4
A water soluble dyestuff of the formula ##EQU5## wherein D is phenyl which is substituted by at least one sulphonic acid group imparting solubility in water, and is additionally substituted by a fiber-reactive substituent attached to the diazo component via an -NH- group and selected from the group consisting of acryloxy, .alpha.-bromoacryloyl, .alpha.-chloroacryloyl, chloro- or bromo- triazinyl, chloro- or bromo-pyrimidyl, chloro- or bromo-propionyl, .alpha.,.beta.-dibromopropionyl, fluorocyclobutanecarbonyl, chloroquinoxalinecarbonyl, methanesulphonylpyrimidinyl and a group of the formula ##EQU6## in which one of the symbols X represents hydrogen and the other chlorine or bromine;
- and said phenyl is further unsubstituted or substituted by at least one member selected from the group consisting of hydroxy, cyano, 4-methyl-3-sulfophenylsulfonyl, sulphamide, nitro, chloro, methoxy and acetylamino.
Dependencies are inferred from the claim text.