Process for the preparation of optically active secondary arylamines

Abstract From the Canadian patent

6-16034/+, Process for the preparation of optically active secondary arylamines, Abstract, Asymmetric hydrogenation of prochiral,N-arylketimines to give optically active secondary amines at a temperature of -20 to 80°C, a hydrogen pressure of 105 to 6.106 Pa with the addition of catalytic amounts of an iridium compound of the formula III or IIIa, XIrYZ (III) or XIrY?A? (IIIa) in which X is two olefin ligands or one diene ligand Y is a, chiral diphosphine, the secondary phosphine groups of which are linked by 2-4 C atoms and which, together with the Ir atom, forms a 5-, 6- or 7-ring, or Y is a chiral diphosphinite, the phosphinite groups of which are linked via 2 C atoms and which together …