Catalytic hydrogenation processes

Details Catalytic hydrogenation processes Catalytic hydrogenation processes

2008-01-08

2008-01-08

Shiao, Rei-tsang (Department: 1626)

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

Organic compounds

Oxygen containing

C568S814000, C568S850000

Reexamination Certificate

active

10380483

ABSTRACT:
The catalysts of formula (II): [Ru(L)m(L′)wXY], wherein X and Y represent simultaneously or independently a hydrogen or halogen atom, a hydroxy group, or an alkoxy, carboxyl or other anionic radical, m is 1 or 2, w is 1 when m is 1 and w is 0 when m is 2, L is a phosphino-amine or phosphino-imine bidentate ligand and L′ a diphosphine, are useful for the hydrogenation of substrates having a carbon-hetero atom double bond.

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Jingxing Gao , “Preparation of chiral diaminodiphosphine metal complexes as catalysts in asymmetrically catalytic hydrogenation”, Chemical Abstract, vol. 132, No. 7, pp. 1463 (2000).
Abdur Rashid et al., Ruthenium Dihydride, Ru H2(PPh3)2(R,R)-cyclohexyldiamine) and Ruthenium Monohydride RuHC1(PPh3)2(R,R)- )-cyclohexyldiamine: Active Catalyst and Catalyst Precursor for the Hydrogenation of Ketones and Imines, American Chemical Society, Organometallics, vol. 19, pp. 2655-2657 (2000).
Noyori et al., Asymmetric Catalysis by Architectural and Functional Molecular Engineering: Practical Chemo-and Stereoselective Hydrogenation of Ketones, Angew. Chem. Int Ed. vol. 40, pp. 40-73 (2001).

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