| 摘要 |
Reactive dyes of the formula <IMAGE> where n is 0 or 1, R1, R2 and R3 are each hydrogen, C1-C4-alkyl or phenyl, A is unsubstituted or substituted C2-C8-alkylene, Y is vinyl or a radical of the formula -CH2-CH2-Q, where Q is a group which can be eliminated under alkaline reaction conditions, D1 is phenyl or naphthyl, where these radicals may be substituted, D2 is phenylene or naphthylene, where these radicals may be substituted, and Z is a reactive radical, with the proviso that a) n is zero when D1 is substituted by unsubstituted or substituted phenylazo or by unsubstituted or substituted naphthylazo and b) the reactive radical Z is not devised from the triazine series when n is zero and D1 is dihydroxysulfonylphenyl or trihydroxysulfonylnaphthyl, are used for dyeing and printing organic substrates containing hydroxyl groups or nitrogen atoms.
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