Amino-anthraquinone reactive disperse dyes

Abstract

Abstract The present invention provides useful new fibre-reactive disperse dyes of the formula (1) ##STR1## wherein R 1 represents hydrogen or alkyl, R 2 represents hydrogen, alkyl, cycloalkyl, aralkyl or substituted or unsubstituted phenyl, and R 1 and R 2 , together with the nitrogen atom to which they are attached, can also form a 5- to 7-membered heterocyclic ring, R 3 represents hydrogen or alkyl, R 4 represents an alkyl radical of 1 to 6 carbon atoms which is substituted in α- and β-position, preferably only in α-position, by halogen, for example bromine and above all chlorine, or represents an α,β-unsaturated alkene radical which can be substituted in α- or β-position by halogen, such as bromine and above all chlorine, A represents an alkylene or cycloalkylene radical which optionally contains oxygen or sulphur, X represents hydrogen, chlorine, bromine, cyano or COOR 5 , and R 5 represents alkyl, A process for the manufacture of these anthraquinone dyes and a method of using them for dyeing and printing organic fibre material, in particular natural and synthetic polyamides, and the material which is dyed with these dyes.

Inventors

• 👤 Stefan Koller
• 👤 Urs Karlen
• 👤 Werner Kneubuhler
• 👤 Raymond DeFago

Bibliographic Details