| 摘要 |
<p>1286906 Monoazo dyes CIBA GEIGY AG 4 March 1970 [2 April 1969 3 Dec 1969] 10417/70 Heading C4P New monoazo dyes of formula wherein A is a cyclohexyl residue, R 1 and R 2 are alkyl, cyanoalkyl, alkoxyalkyl, acyloxyalkyl cyanoalkoxyalkyl, 2-aminocarbonyl-ethyl or alkoxycarbonylalkyl residues and R 1 can also be H, R 3 is H or C 1-3 alkyl, X is a H or halogen atom or a NO 2 , CN, alkyl, alkoxy or acylamino group, Y 1 is a H atom or an alkyl, acylamino or phenoxy group and Y 2 is H or an alkoxy group are prepared by coupling a diazotized 2-cyclohexylaminosulphonyl-aniline with an appropriate N- substituted aniline. They are used to colour cellulose ester fibres and spinning solutions in red and violet shades.</p> |
