| 摘要 |
<p>IMPROVEMENTS IN OR RELATING TO ORGANIC COMPOUNDS A compound of formula I (I) in which R is halogen, R1 is cyano, C1-6alkoxycarbonyl, C3-6alkenyloxy-carbonyl, aminocarbonyl, C1-4alkylsulphonyl, phenylsulphonyl, C1-4-alkyl- or phenyl-carbonyl or phenyl-, mono-C1-4alkyl- or di-C1-4-alkyl-aminocarbonyl; R2 is formul, cyano, -CH=C(R4)2; -CH=N-OH; R3 is -N=N-K or -NH2; K is a coupling component radical; each R4 independently, is cano, C1-6alkoxycarbonyl, C3-6alkenyloxycarbonyl or C3-6alkynyloxycarbonyl or one R4 is cyano and the other R4 is benzoyl unsubstituted or mono-substituted by C1-4alkoxycarbonyl, C1-4alkylsulphonyl, phenylsulphonyl or aminocarbonyl unsubstituted or mono-substituted by C1-4alkyl or phenyl; or one R4 is hydrogen and the other R4 is benzoyl unsubstituted or mono-substituted by C1-2alkoxycarbonyl, halogen, C1-4alkyl or -NO2;or C1-4alkylcarbonyl or C3-6alkenylcarbonyl; or one R4 is nitro and the other R4 is hydrogen, methyl or ethyl. These compounds are useful as disperse dyes.</p> |
