Rhodium complexes of asymmetric diphosphines, their preparation

Details Rhodium complexes of asymmetric diphosphines, their preparation Rhodium complexes of asymmetric diphosphines, their preparation

1975-06-25

1976-08-31

Sneed, Helen M. S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

252431P, 2603402, 2603405, 260471A, 260519, 260534C, 260534R, 2606065P, C07F 1500

Patent

active

039781011

ABSTRACT:
Optically active diphosphines of the formula: ##EQU1## in which the phosphinomethyl groups are trans to each other, from rhodium complexes useful as catalysts in hydrogenating substituted acrylic acids and their esters to optically active propionic acid derivatives.

REFERENCES:
patent: 3489786 (1970-01-01), Dewhirst
patent: 3798241 (1974-03-01), Kagan
patent: 3849480 (1974-11-01), Knowles et al.
H. Schindlbauer, Monatshefte fur Chemie, 96, 2058-2060 (1965).
Osborn et al, J. Chem. Soc. pp 1711-1732 (1966).
Kosolapoff, Orgnic Phosphorus Compounds, Wiley Interscience, N.Y. vol. 1, pp. 480-486 (1972).

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