Ruthenium phosphine complex

Details Ruthenium phosphine complex Ruthenium phosphine complex

1990-12-10

1992-06-02

Dees, Jose G.

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

Organic compounds

Heavy metal containing

556136, C07F 1500

Patent

active

051188252

ABSTRACT:
A ruthenium phosphine complex having catalytic, hydrogenation activity is disclosed. The catalyst as the formula ##STR1## wherein R and R' are the same or different and are C.sub.1 to C.sub.6 linear or branched alkyl; R" is hydrogen or C.sub.1 to C.sub.6 linear or branched alkyl; R.sub.1 is C.sub.1 to C.sub.6 linear or branched alkyl; and n is an integer from 1 to 6.
The phosphine complex is particularly useful in the asymmetric hydrogenation of unsaturated carboxylic acids or alkyl esters thereof.

REFERENCES:
patent: 4691037 (1987-09-01), Yoshikawa et al.
patent: 4739084 (1988-04-01), Takaya et al.
patent: 4739085 (1988-04-01), Takaya et al.
patent: 4766227 (1988-08-01), Sayo et al.
ApSimon et al., Tetrahedron (1986) 42, 5157.
Inoue et al., Chem. Lett., (1985), 1007.
Bosnich et al., JACS 103, 2273 (1981).
Noyori et al., Mod. Synthetic Methods (1989) 5, 115.
Wilson et al., Syn Lett (1990), 199.

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