| 摘要 |
Dyes have formula: (where n=1 or 2, D is the residue of an (hetero)aromatic diazo-or tetrazo component A1 is lower alkyl a phenyl, tolyl, methoxyphenyl, chlorophenyl, bromophenyl or nitrophenyl gp or a (substd)carbalkoxy gp with 2-9C A2 is a nitrile, carboxylic acid amide or (substd) carbalkoxy gp with 2-9C; A3 is H, lower alkyl or lower alkoxy, and A4 is H, alkyl, or (substd) sulphonamide gp. - Used for dyeing textiles of cellulose esters, polyamides, nickel-contg polypropylene or polyesters or as pigments. - The dyes are yellow to blue.
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