Catalytic hydrogenation process for the preparation thereof and hydrogenation process.

PRODUCTS OF REACTION OF A SALT iridium (III) or a hydrate thereof, a diphosphine GROUPS HAVE HIGH phosphine and a metal or ammonium chloride, bromide or iodide ARE EXCELLENT FOR ketimine hydrogenation catalysts. USING prochiral ketimines chiral diphosphines AND ARE OBTAINED diastereoisomeric secondary amines in high yields opticians.