Hydrogenation catalyst, process for the preparation thereof...

Details Hydrogenation catalyst, process for the preparation thereof... Hydrogenation catalyst, process for the preparation thereof...

C - Chemistry, Metallurgy

07

F

C07F 15/00 (2006.01) B01J 31/22 (2006.01) B01J 31/24 (2006.01) C07C 209/52 (2006.01) C07C 211/48 (2006.01) C07C 213/00 (2006.01) C07C 217/08 (2006.01) C07C 241/02 (2006.01) C07C 243/22 (2006.01) C07C 253/30 (2006.01) C07C 319/20 (2006.01) C07C 323/35 (2006.01) C07D 333/36 (2006.01) C07F 17/02 (2006.01)

Patent

CA 2181366

Reaction products of an iridium (III) salt or a hydrate thereof, a diphosphine having secondary phosphine groups and a metal or ammonium chloride, bromide or iodide are excellent hydrogenation catalysts for ketimine. Using chiral diphosphines and prochiral ketimines, diastereoisomeric secondary amines are obtained in high optical yields.

Les produits de la réaction entre un sel d'iridium (III) ou un hydrate de ce sel, une diphosphine contenant des groupes phosphine secondaires et un chlorure, bromure ou iodure d'ammonium ou métallique sont d'excellents catalyseurs d'hydrogénation pour la cétimine. L'utilisation de diphosphines chirales et de cétimines prochirales permet d'obtenir des amines secondaires diastéréoisomères avec des rendements élevés en matières optiques.

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