Patent ID: 6369274
Filing Date: 2002-04-09
Classification: C07C

Abstract:
The process for preparing a 1,n-cyclohexanediamine of the formula: wherein one of the radicals R1 to R3 is an amino group and the two others are hydrogen, comprising reacting a corresponding 1,n-cyclohexanediol of the formula: where one of the radicals R4 to R6 is a hydroxyl group and the others are hydrogen, with ammonia in the presence of hydrogen and of a Co-containing catalyst at a temperature of 100Â° to 350Â° C., at a pressure of 50 to 300 bar and at a ratio of 2 to 200 mol of ammonia and 0.01 to 20 mol of hydrogen per mol of 1,n-cyclohexanediol.