| 摘要 |
<p>Reactive dyes of formula (1) wherein R1 is hydrogen or unsubstituted or substituted C1-C4alkyl, R2 is hydrogen; C1-C4alkyl;C1-C4alkoxy unsubstituted or substituted by sulfato, hydroxy or by C1-C4alkoxy; halogen; carboxy or sulfo, R3is hydrogen; C1-C4alkyl; C1-C4alkoxyunsubstituted or substituted by sulfato, hydroxy or by C1-C4alkoxy;halogen; nitro; C2-C4alkanoylamino; ureido; carboxy or sulfo, (R4)k denotes k identical or different substituents selected from the group halogen, C1-C4-alkyl, C1-C4alkoxy,carboxy and sulfo, X is halogen and V is a radical of formula (2a), 2(b) whereinR5 is unsubstituted or substituted C1-C4alkyl,(R6) denotes I identical or different substituents from the group C1-C4alkyl, C1-C4alkoxy and sulfo, and I is the number O, 1 or 2, Y is vinyl or a -CH2-CH2-U radical and U is a group that is removable under alkaline conditions, Q is a -CH(HaI)-CH2-HaIor -C(HaI)=CH2 group, Hal is halogen and k is the number O, 1 , 2 or 3, are suitable especially for dyeing cotto n and yield dyeings having good all round fastness properties.</p> |
