| 摘要 |
<p>1,128,176. Disperse monoazo dyes. SANDOZ Ltd. 10 Jan., 1966 [14 Jan., 1965], No. 1039/66. Heading C4P. The invention comprises disperse monoazo dyes of general formula wherein R 1 is an unsubstituted or halogeno-, cyano., or hydroxyl-substituted methyl or ethyl radical; R 2 is H or a methyl, ethyl, methoxy or ethoxy radical; R 3 is an alkylearbonylalkyl, unsubstituted or halogeno-, cyano-, alkoxy- or acyl-substituted acyloxyalkyl; alkoxycarbonylalkyl or alkoxycarbonyloxyalkyl radical; R 4 is a cyanoalkyl, unsubstituted or halogeno-, cyano-, alkoxy- or acyl-substituted acyloxyalkyl, alkoxycarbonylalkyl or alkoxycarbonyloxyalkyl radical and R 5 is an alkoxy, unsubstituted or halogeno-, cyano-, alkoxy-, aralkoxy-, or aryloxy-substituted alkylcarbonylamino, aralkylcarbonylamino, arylcarbonylamino, alkoxycarbonylamino, aralkoxycarbonylamino, or aryloxycarbonylamino radical. The dyes are prepared by diazotization and coupling. They give blue and violet shades on polyesters, cellulose di- and tri-acetates, polyamides, polyolefins, acrylonitrile and polyvinyl compounds. Many examples are given.</p> |
