Patent ID: 6232501
Filing Date: 2001-05-15
Classification: C07B,C07C

Abstract:
A process for the preparation of a compound of formula ##STR16##wherein R.sub.1 and R.sub.2 are each independently of the other hydrocarbon radicals and A is substituents, and m is an integer from 0 to 4 and defines the number of the substituents A, which process comprisesa) hydrogenating a cyclohexylidenamine of formula: ##STR17##wherein n is 0 or 1 and R.sub.1, R.sub.2, A and m have the cited meanings, in the presence of a copper-containing catalyst; orb) reacting a ketone of formula: ##STR18##wherein R.sub.2, A and m have the cited meanings, with a compound introducing the R.sub.1 --N.fwdarw.(O).sub.n group, hydrogenating the imine or nitrone (II) which is obtainable as intermediate in the presence of a copper-containing catalyst and isolating the cis-compound (I).