| 摘要 |
Compounds of the formula <IMAGE> salts thereof, and mixtures of such compounds and salts, wherein D1 is <IMAGE> (a) or <IMAGE> (b) wherein R1 is hydrogen, halo, C1-4alkyl, C1-4alkoxy, -SO3H or -COOH, R2 is -COOH, -CONR6R7, -SO2NR6R7 or -SO2-X, wherein each of R6 and R7 is independently hydrogen, C1-4alkyl, C2-4-hydroxyalkyl or C2-4sulfatoalkyl, or -NR6R7 is a saturated 5- or 6-membered heterocyclic ring containing no hetero atom in addition to the nitrogen atom to which R6 and R7 are attached or containing one hetero atom selected from nitrogen and oxygen in addition to said nitrogen atom, which ring is unsubstituted or substituted by 1 to 3 C1-4alkyl groups, and m is 0, 1 or 2, and D2 is <IMAGE> (d) or <IMAGE> (e) wherein R3 is hydrogen, -SO3H or -COOH, R4 is hydrogen, C1-4alkyl or C1-4alkyl monosubstituted by hydroxy, halo, cyano, -SO3H, -OSO3H or -COOH, n is 0 or 1, and p is 1 or 2, wherein X is -CH=CH2 or -W-Y, wherein W is linear or branched C2-4alkylene, and Y is hydroxy or a group which can be split off under alkaline conditions, with the provisos that (i) R1 may be -COOH only when R2 is -SO2-X, (ii) D2 must be a group of Formula (d) when D1 is a group of Formula (a) wherein R1 is hydrogen, halo, C1-4alkyl, C1-4alkoxy or -SO3H, and R2 is -COOH, -CONR6R7 or -SO2NR6R7 or a group of Formula (b), and (iii) D2 must be a group of Formula (e) when D1 is a group of Formula (a) wherein R1 is -COOH, and R2 is -SO2-X, useful for dyeing or printing hydroxy group- or nitrogen-containing organic substrates, for example leather and fiber material comprising natural or synthetic polyamides or natural or regenerated cellulose, especially textile material comprising cotton. The obtained dyeings and printings show good general fastness properties such as good light fastness, wet fastnesses and resistance towards oxidative influences.
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