Asymetric hydrogenation of .beta.- or .gamma.g-ketoesters...

Details Asymetric hydrogenation of .beta.- or .gamma.g-ketoesters... Asymetric hydrogenation of .beta.- or .gamma.g-ketoesters...

C - Chemistry, Metallurgy

07

C

C07C 69/675 (2006.01) C07C 67/31 (2006.01) C07C 69/757 (2006.01) C07C 231/12 (2006.01) C07C 231/18 (2006.01) C07C 235/06 (2006.01) C07C 269/06 (2006.01) C07C 271/22 (2006.01) C07D 207/12 (2006.01) C07F 15/00 (2006.01)

Patent

CA 2178948

.beta.- or .gamma.-Ketoesters and .beta.- or .gamma.-ketoamides are asymmetrically reduced with a Ru(II)-BINAP derived catalyst at about 40 ~C and about 50 N/mm2 of hydrogen in the presence of a strong acid.

La réduction asymétrique des .beta.- ou .gamma.-cétoesters et des .beta.- ou .gamma.-cétoamides s'effectue en présence d'un acide fort, au moyen d'un catalyseur dérivé du Ru(II)-BINAP, à environ 40~ C et environ 50 N/mm?2¿ d'hydrogène.

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