| 摘要 |
<p>NEW MATERIAL:A compound shown by formula I {R is H, Cl, methyl or methoxy; n is 2 or 3; D is group shown by formula II (R1 is methoxy or ethoxy; X is H, Cl or sulfonamide) or group shown by formula III [R2 is Cl, methyl, methoxy or ethoxy; R3 is H or methyl; Y is acetyl or (Cl- or methyl-substituted) benzenesulfonyl]}. EXAMPLE:A compound shown by formula IV. USE:Dye for dyeing fibrous materials, leather, paper, pulp, etc., in clear yellow in improved dyeing concentration, dyeing rate and degree of exhaustion. PREPARATION:For example, an amino compound shown by formula V is diazotized to give a diazonium salt, which is coupled with an acetoacetylamino compound shown by formula VI in a molar ratio of 1:1 preferably at 0-30 deg.C at 4-8.</p> |
