| 摘要 |
1. A monoazo dye of the formula see diagramm : EP0121495,P38,F1 wherein R1 is hydrogen, C1 -C4 alkyl, C1 -C4 alkoxy, halogen, C2 -C4 alkanoylamino or is an unsubstituted or substituted arylsulfonyl, aryloxy or arylcarbonyl radical ; R2 is hydrogen, halogen, an unsubstituted or substituted alkyl, aryloxy or aryloxysulfonyl radical or a radical of the formula see diagramm : EP0121495,P38,F2 or see diagramm : EP0121495,P38,F3 R3 is an unsubsdtituted or substituted alkyl or aryl radical ; R4 is hydrogen or alkyl ; and R5 and R6 are each independently hydrogen or an unsubstituted or substituted alkyl, cycloalkyl or aryl radical, with the proviso that R1 may not be hydrogen, C1 -C4 alkyl, C1 -C4 alkoxy orhalogen if R2 is an hydrogen, halogen, unsubstituted or substituted alkyl or aryloxysulfonyl radical or a radical of the formula -SO2 N(R5 ) (R6 ) or -CON(R5 )(R6 ). |
