Rhodium-phosphine chiral hydrogenation catalyst

Details Rhodium-phosphine chiral hydrogenation catalyst Rhodium-phosphine chiral hydrogenation catalyst

C - Chemistry, Metallurgy

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C07F 15/00 (2006.01) B01J 31/24 (2006.01) C07C 29/147 (2006.01) C07C 51/36 (2006.01) C07D 209/20 (2006.01) C07F 9/50 (2006.01)

Patent

CA 1182462

ABSTRACT RHODIUM-PHOSPHINE CHIRAL HYDROGENATION CATALYST The chiral phosphine ligand (R)-1,2-bis(diphenyl- phosphino)-1-cyclohexylethane, when complexed to Rh(I), functions as a superior chiral hydrogenation catalyst. The chiral phosphlne ligand is more stereochemically rigid than previous compounds consequently, virtually optically pure materials can be produced from the chiral hydrogenation of prochiral compounds using the catalyst of this invention. This catalyst is especially useful in the chiral hydrogenation of alpha-acylamido acrylic acids.

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