Patent ID: 6451072
Filing Date: 2002-09-17
Classification: C09B,Y10S

Abstract:
A reactive dye of formula (1) whereinA is phenyl or naphthyl, each of which is unsubstituted or substituted by halogen, C1-C4alkyl, C1-C4alkoxy, carboxy, sulfo or a fibre-reactive group of formula (2a), (2b), (2c), (2d) or (2e) â€”SO2â€”Yâ€ƒâ€ƒ(2a), â€”NHâ€”COâ€”(CH2)lâ€”SO2â€”Yâ€ƒâ€ƒ(2b), â€”CONHâ€”(CH2)mâ€”SO2â€”Yâ€ƒâ€ƒ(2c), â€”NHâ€”COâ€”CH(Hal)â€”CH2Halâ€ƒâ€ƒ(2d) orâ€”NHâ€”COâ€”C(Hal)&boxH;CH2â€ƒâ€ƒ(2e), B is an aliphatic linking group, D is the radical of a diazo component of the benzene or naphthalene series, R1 is hydrogen or unsubstituted or substituted C1-C4alkyl, R2 is hydrogen, cyano, carbamoyl or sulfomethyl, R3 is hydrogen or C1-C4alkyl, R corresponds to a radical of formula (3) â€ƒwherein B, D, R2 and R3 have the meanings cited above, X1 is halogen, hydroxy, C1-C4alkoxy, unsubstituted or substituted C1-C4alkylthio or unsubstituted or substituted amino, or a N-heterocycle which may contain additional heteroatoms, Hal is chloro or bromo, Y is vinyl or a â€”CH2â€”CH2â€”U radical, U is a group which is removable with alkali, and l and m are each independently of the other the number 2, 3 or 4.