| 摘要 |
There are described new styryl compounds of the formula <IMAGE> (I) in which X is =CH2, -O-, -S- or the grouping =NR3 wherein R3 is hydrogen or an alkyl group having 1 to 4 carbon atoms, Z is the -O- or -S- atom, A is a straight-chain or branched-chain alkylene group having 2 to 4 carbon atoms, R1 is an unsubstituted or substituted alkyl group, R2 is hydrogen, C1-C4-alkyl, C1-C4-alkoxy, halogen or phenoxy, and Y is -CN, -COOR4, -SO2R4 or CONR3R5 wherein R3 has the meaning given above, R4 is a C1-C4-alkyl group or the phenyl group, R5 is hydrogen or is the same as R4, and the benzene rings B, C and D can be further substituted in particular by nonionic substituents, and also the production thereof and their use as dyes for dyeing and printing synthetic fibre materials, particularly those made from aromatic polyesters.
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