| 摘要 |
<p>Acid azo dyes are claimed having the formula (I) in the free acid form, in which K is the residue of a coupling component. Typical coupling components K are in which R1 is H, Me, OMe or OEt; R2 is H, Cl, Me, Et, benzyl, sulphobenzyl, OMe, OEt. NHCO-C1-4 alkyl, acylamino or SO3H; R3 is H, 1-4C alkyl, 2-3C hydroxy- or dihydroxyalkyl, beta-sulphoethyl, gamma-sulphopropyl, beta-cyanoethyl, beta-hydroxy-gamma-chloropropyl, 1-4C alkoxyethyl, acetoxyethyl, beta-chloroethyl, gamma-amino or gamma-acetylaminopropyl, beta-carboxyethyl, beta-carbamoylethyl, benzyl, sulphobenzyl, phenylethyl, sulphophenylethyl or cyclohexyl; R4 is 1-4C alkyl, 2-3C hydroxyalkyl, beta-cyanoethyl, beta-chloroethyl, 1-4C alkoxyethyl, benzyl or sulphobenzyl; R5 is amino, acetylamino, chloracetylamino, phenoxyacetylamino, benzoylamino, chlorbenzoylamino or dichlorbenzoylamino; R6 is (chloro)methyl, phenyl, chlorophenyl or acetylamino; R7 is 1-8C alkyl, 2-3C hydroxyalkyl, phenyl-1-4C alkyl, cyclohexyl or phenyl; R8 is H or 1-3C alkyl; R9 is H, 1-4C alkyl, 1-4C alkoxy, 2-3C alkyl or hydroxyethyl or -propyl; R10 is (cyclo)alkyl or aryl or one R10 may be H; R11 is H, 1-4C alkoxy, benzyloxy or phenoxy-substd. 1-4C alkyl; X is CN or carbomoyl. (I) are red to green-blue dyes which are esp. useful for dyeing natural and synthetic polyamides, wool, pelts etc. The dyes have very high colour strength and give dyeings with very good resistance to light, moisture, sweat, seawater etc.</p> |
