| 摘要 |
Compounds of the formula <IMAGE> wherein R is halo, R1 is cyano; (C1-6alkoxy)carbonyl; (C3-6alkenyl)oxycarbonyl; C1-4alkylsulfonyl; phenylsulfonyl; (C1-4alkyl)carbonyl; benzoyl; carbamoyl; (C1-4alkyl)carbamoyl; N,N-di-(C1-4alkyl)carbamoyl; phenylcarbamoyl; benzyloxycarbonyl; or (C1-6alkoxy)carbonyl, (C3-6alkenyl)oxycarbonyl, C1-4alkylsulfonyl, phenylsulfonyl or (C1-4alkyl)carbamoyl substituted by one or two substituents independently selected from chloro, bromo, C1-4alkyl, C1-4alkoxy, hydroxy, cyano and acyl, and R2 is formyl, cyano, -CH=C(R4)2 or -CH=N-OH, wherein (1) each R4 is independently cyano; (C1-6alkoxy)carbonyl; (C3-6alkenyl)oxycarbonyl; (C3-6alkynyl)oxycarbonyl; or (C1-6alkoxy)carbonyl, (C3-6alkenyl)oxycarbonyl or (C3-6alkynyl)oxycarbonyl substituted by one or two substituents independently selected from chloro, bromo, C1-4alkyl, C1-4alkoxy, hydroxy, cyano and acyl, (2) one R4 is cyano and the other is benzoyl or benzoyl monosubstituted by (C1-4alkoxy)carbonyl, C1-4alkylsulfonyl, phyenylsulfonyl, carbamoyl, (C1-4alkyl)carbamoyl, phenylcarbamoyl or (C1-4alkoxy)carbonyl, C1-4alkylsulfonyl, phenylsulfonyl or (C1-4alkyl)carbamoyl substituted by one or two substituents independently selected from chloro, bromo, C1-4alkyl, C1-4alkoxy, hydroxy, cyano and acyl, (3) one R4 is hydrogen and the other is benzoyl; benzoyl monosubstituted by (C1-2alkoxy)carbonyl, halo, C1-4alkyl, nitro or (C1-2alkoxy)carbonyl substituted by one or two substitutents independently selected from chloro, bromo, C1-4alkyl, C1-4alkoxy, hydroxy, cyano and acyl; (C1-4alkyl)carbonyl or (C3-6alkenyl)carbonyl or (4) one R4 is nitro and the other is hydrogen, methyl or ethyl, and R3 is amino or -N=N-K, wherein K is a coupling component radical. The compounds wherein R3 is -N=N-K are useful as disperse dyes and those wherein it is amino are useful as intermediates in the synthesis of those wherein it is -N=N-K.
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