摘要 |
A bisazo compound of formula (1): [wherein R 1 and R 2 represent hydrogen or alkyl * ; U represents a group of formula (2a), (2b) or (2c): wherein R 3 represents hydrogen or alkyl * ; R 4 and R 5 represent hydrogen, alkyl * or phenyl; A 1 represents phenylene * or naphtylene * ; A 2 represents alkylene * ; Q 1 represents -O-, -S- or -N(H/alkyl * /phenyl * )-; r and s represent 2, 3 or 4; Z 1 , Z 2 and Z 3 represent a fiber-reactive group of formula (3a) or (3b): ,wherein Y 1 and Y 2 represent -CH=CH 2 or -CH 2 CH 2 L wherein L is a group which can be eliminated by the action of an alkali; R 7 is H or C 1-4 -alkyl * ; mis 1-6; X 1 and X 2 represent a group selected from fluoro, chloro and pyridinio * ; T represents a non-fiber reactive group of formula (4a), (4b) or (4c): wherein R 8 represents hydrogen or alkyl * ; R 9 represents alkyl * , cyano or phenyl * ; R 10 represent hydrogen, alkyl * or phenyl * ; Q 2 represents -CH 2 -, -O-, -S-, -SO 2 - or -N(H/alkyl * )-; n is 1, 2 or 3; where U is connected to one of the two bonds marked with a symbol * and T is connected to the other bond marked with a symbol *; and where the symbol * indicates that the term is optionally substituted] or a salt thereof, is useful for dyeing or printing a fiber material. |