(S)-(+)-N-(3,5-dioxa-4-phosphacyclohepta-[2,1-a;3,4-a′]dinaphthalen-4-yl)dibenz[b,f]azepine; di-μ-chloro-bis(η4-1,5-cyclooctadiene)diiridium; C13H19O4P in ethylene dibromide T=23 - 50°C; 24 h; Inert atmosphere; optical yield given as percent eeenantioselective reaction;