| 摘要 |
<p>Compounds of the general formula: <CHEM> wherein Z<1> and Z<2> are each independently -O-, -S- or -NR<5>- in which R<5> is hydrogen, an optionally substituted hydrocarbon group or an acyl group; X<1> and X<2> are selected from hydrogen, halogen, cyano, C1-4 alkyl, C1-4 alkoxy, aryl, carbamoyl, sulphamoyl, carboxy or carboxylic acid ester; R<1> is an optionally substituted aryl radical; A is an optionally substituted alkyl radical or a radical of the formula: R<2> - (CH = CH)n - in which R<2> is an optionally substituted aryl or heterocyclic radical, and n has a value of 1 or 2. The compounds are useful as dyes for synthetic textile materials.</p> |
