| 摘要 |
Compounds of formula I <IMAGE> (I) wherein R is a radical of formula -OR3 or -NHR3, A is a radical of formula II or III <IMAGE> (II) <IMAGE> (III) and B is a radical of formula <IMAGE> <IMAGE> wherein n is 1 or 2, R1 is -H or -Cl, R2 is -H, halogen, -NO2, -CN, C1-C4alkyl, C1-C4alkoxy, -CF3, C2-C5alkoxycarbonyl, -CONH-phenyl, -NHCO-phenyl or phenoxy, each unsubstituted or substituted in the phenyl nucleus by one or two chlorine atoms or by one or two methyl, methoxy or ethoxy groups, R3 is C5-C12cycloalkyl, which is unsubstituted or substituted by 1 to 3 C1-C4alkyl or C5-C6cycloalkyl groups, R4 and R5 are each independently of the other -H, halogen, -NO2, -CN, -CF3, C1-C4alkyl or C1-C4alkoxy, R6 is -H, -Cl, -Br, -CH3 or -OCH3, and X is -H, -Br, -OCH3, -CN or -NO2, are suitable for use as pigments, especially for colouring polyolefins.
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