| 摘要 |
The dyes are of formula R is an opt. substd. alkoxy, aroxy, aralkoxy, alkylamino, dialkylamino or arylamino gp. X is H, Cl, Br, -CH3, -OCH3 -OC2H5, -CN, 2-9C carbalkoxy opt, mono- or di-alkyl substd. carbonamide or sulphonamide, carbopyrrolidide, -piperidide, -morpholide, -N-methyl piperazide, sulphopyrrolidide, -piperidide, -morpholidide or -N-methyl piperazide.) Brilliant yellow shades of good general fastness are obtained and due to their insolubility, the dyes may also be used as pigments. |
