Use of chiral diphosphines as optically active ligands

Details Use of chiral diphosphines as optically active ligands Use of chiral diphosphines as optically active ligands

C - Chemistry, Metallurgy

07

F

C07F 9/50 (2006.01) B01J 31/24 (2006.01) C07B 53/00 (2006.01) C07C 67/31 (2006.01) C07F 15/00 (2006.01)

Patent

CA 2417836

The invention concerns the use of chiral diphosphines as optically active ligands for preparing diphosphino-metal complexes. The invention also concerns diphosphino-metal complexes comprising a chiral diphosphine as ligands and asymmetrical catalysis methods using said complexes. More particularly, the invention concerns the use of said diphosphino-metal complexes in asymmetrical hydrogenation or isomerization processes for the synthesis of organic products with desired chirality.

La présente invention a pour objet l'utilisation de diphosphines chirales comme ligands optiquement actifs pour la préparation de complexes diphosphino- métalliques. L'invention se rapporte aussi aux complexes diphosphino- màtalliques comprenant une disphophine chirale comme ligand et les procédés de catalyse asymétriques mettant en oeuvre ces complexes. L'invention envisage plus particulièrement l'utilisation de ces complexes diphosphino-métalliques dans des procédés d'hydrogénation ou d'isomérisation asymétrique pour la synthèse de produits organiques à chiralité voulue.

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