Rhodium complexes containing chiral phosphine ligands useful as

Details Rhodium complexes containing chiral phosphine ligands useful as Rhodium complexes containing chiral phosphine ligands useful as

1982-01-18

1983-08-09

Sneed, Helen M. S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2604291, 2604292, 2604293, 2604295, 260430, 2604381, 2604385R, 260439R, C07F 1500

Patent

active

043977871

ABSTRACT:
Rhodium (1) complexes containing the chiral phosphine ligand (R)-1,2-bis(diphenylphosphino)-1-cyclohexylethane which are useful as chiral hydrogenation catalysts. These catalysts are especially useful in the chiral hydrogenation of alpha-acylamido acrylic acids.

REFERENCES:
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patent: 3978101 (1976-08-01), Aviron-Violet
patent: 4008281 (1977-02-01), Knowles et al.
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Halpern, et al., "Novel Coordination Chemistry and Catalytic Properties of Cationic 1,2-Bis(diphenylphosphino)ethanerhodium (I) Complexes", J. Am. Chem. Soc., vol. 99, (1977), pp. 8055-8057.
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Kagan et al., "Asymmetric Catalytic Reduction with Transition Metal Complexes, A Catalytic System of Rhodium (I) with (-)-2,3-O-Isopropylidene-2,3-dihydroxy-1,4-bis(diphenylphosphino)butane, a New Chiral Diphosphine", J. Am. Chem. Soc., vol. 94, (1972), pp. 6429-6433.
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Slack et al., ".sup.31 P NMR Studies of Catalytic Systems Containing Rhodium Complexes of Chelating Chiral and Achiral Diphosphines", Inorg. Chem., vol. 18, (1979), pp. 3125-3132.
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