| 摘要 |
Novel acetoacetylated aromatic amine compounds are claimed. - Novel acetoacetylated aromatic amine compounds (I) are of formula (1). - R1, R2 = OH, 1-6C alkyl, 1-6C alkoxy, halogen, phenyl or phenoxy; - R3 = H or 1-6C alkyl; - m = 0-4; - n = 0-5. - Independent claims are included for: - (i) a process for the production of the compounds (I) (R3=1-6C alkyl) by reaction of diketene with an N-phenyl-p-phenylenediamine of formula (2) in the presence of 3-40 % acetic acid at 20-100 (60-70) degreesC; - (ii) new unsaturated amino-ketone compounds (II) of formula (3) prepared by reaction of the amine compound (I) with ammonia; and - (iii) new amino-ketone compounds (III) of formula (4) prepared by catalytic hydrogenation of (II). |
