| 摘要 |
Reactive dyes of the formula <IMAGE> (1) are particularly suitable for dyeing or printing cellulosic fibre materials by the exhaust method or by continuous processes and give, with a high color yield, dyeings and prints with good fastness properties, in which D is the radical of a monoazo, polyazo, metal complex azo, anthraquinone, phthalocyanine, formazan, azomethine, dioxazine, phenazine, stilbene, triphenylmethane, xanthene, thioxanthone, nitroaryl, naphthoquinone, pyrenequinone or perylenetetracarbimide dye; R is hydrogen or alkyl having 1 to 4 carbon atoms, which can be substituted by hydroxyl, cyano, carboxyl, sulfo or sulfato; X is fluorine or chlorine; B is a substituted or unsubstituted aliphatic or aromatic bridge member; Y is a substituted or unsubstituted aliphatic, aromatic, araliphatic or heterocyclic radical, which is free from reactive groups; R2 is hydrogen or alkyl having 1 to 4 carbon atoms, which can be substituted by halogen, hydroxyl, cyano, C1-C4alkoxy, C1-C4alkoxycarbonyl, carboxyl, carbamoyl, sulfamoyl, sulfo or sulfato; and R1, independently of R2, has the same meaning as R2 or is a radical of the formula <IMAGE> (1a) in which B, Y and R2 are as defined under formula (1), independently of these meanings.
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