Fibre-reactive anthraquinone dyes, process for their preparation and the use thereof

Abstract

Anthraquinone dyes of formula wherein R1, R2 and R3 are each independently of one another hydrogen or unsubstituted or substituted C1-C12alkyl, X1 is chloro or fluoro, B1 is methylene-phenylene-methylene which is unsubstituted or substituted in the phenylene ring by C1-C4alkyl, C1-C4alkoxy, C2-C4alkanoylamino, halogen, carboxy or sulfo, or is a radical of formula —(CH2)3—CH(CH3)—CH2—, —CH2—CH2—CH(C2H5)—, —CH2—CH(OH)—CH2— or —CH2—C(CH3)2—CH2—, Y is hydrogen, unsubstituted or substituted C1-C12alkyl, or phenyl or naphthyl, each unsubstituted or substituted by C1-C4alkyl, C1-C4alkoxy, C2-C4alkanoylamino, halogen, carboxy, sulfo or a radical of formula —SO2—Z, wherein Z is a group of formula —CH═CH2 or —CH2—CH2—U1, and U1 is a leaving group, are particularly suitable for dyeing or printing cellulosic fiber materials or natural or synthetic polyamide fiber materials in high tinctorial yield and give dyeings and prints of good fastness properties.

Dependencies are inferred from the claim text.