Ruthenium-optically active phosphine complex, process for the pr

Details Ruthenium-optically active phosphine complex, process for the pr Ruthenium-optically active phosphine complex, process for the pr

1997-11-04

1999-11-09

Nazario-Gonzalez, Porfirio

Organic compounds -- part of the class 532-570 series

Organic compounds

Heavy metal containing

556136, 502165, 549322, 549323, C07F 1500, C07D30512

Patent

active

059817828

ABSTRACT:
The present invention provides a catalyst which exhibits a high catalytic activity and allows asymmetric reaction in a high asymmetric yield to obtain a reaction product having a high optical purity. The present invention also provides a process for the preparation of an optically active 4-methyl-2-oxetanone having a high optical purity useful as starting material of polymer in a high yield in a short period in the presence of the foregoing catalyst. A novel ruthenium-iodo-optically active phosphine complex is provided, represented by the following general formula (1):

REFERENCES:
patent: 5412109 (1995-05-01), Takaya et al.
Mashima, K. et al "Highly Stereoselective Asymmetric Hydrogenationof 2-Benzamidomethyl-3oxobutanoate Catalysed By Cationic Binap-Ruthenium(II) Compleses", J. Chem. Soc. Chem. Comm. (JCCCAT, 00224936); 91; (9); p. 609, XP002078179 Kyoto Univ.; Fac. Eng.; Kyoto; 606; Japan.
Patent Abstracts of Japan vol. 95, No. 11, Dec. 26, 1995 and JP 07 206885 A (Abstract).

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