| 摘要 |
PURPOSE:To obtain the titled compound useful as a raw material for a curing agent of polyamide resin and epoxy resin with preventing side reactions, by subjecting an aromatic diamine to nucleus hydrogenation under specific conditions by the use of a rhodium catalyst in an aqueous medium under hydrogen pressure. CONSTITUTION:An aromatic diamine is subjected to nucleus hydogenation in an aqueous medium in the presence of a rhodium catalyst, and trisodium phosphate or tripotassium phosphate, and one or more of ammonia, fatty secondary amine, and fatty tertiary amine at atmospheric pressure -300kg/cm<2> at 50-250 deg.C preferably at 7-100kg/cm<2> at 65-180 deg.C, to give an alicyclic diamine. The amount of the rhodium catalyst is 0.01-10wt%, based on the aromatic diamine, the amount of water is 0.5-10 times as the catalyst by weight, the amount of trisodium phosphate is 0.1-10wt%, and the amount of ammonia, fatty secondary amine or fatty tertiary amine is 1-20wt%. |
