Preparation of .alpha.-keto-carboxylic acids from acyl halides

Details Preparation of .alpha.-keto-carboxylic acids from acyl halides Preparation of .alpha.-keto-carboxylic acids from acyl halides

1983-07-28

1984-11-06

Killos, Paul J.

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

Organic compounds

Carboxylic acids and salts thereof

562517, C07C 5110

Patent

active

044813694

ABSTRACT:
A process for the production of .alpha.-keto-carboxylic acids of the general formula: ##STR1## wherein R.sub.1 and R.sub.2 are the same or different and are hydrogen, hydrocarbyl radicals, substituted hydrocarbyl radicals or hydrocarbyloxy radicals by reacting an acyl halide of the formula: ##STR2## wherein R.sub.1 and R.sub.2 are as defined above and X represents halogen, in a liquid solvent medium, with an alkali metal tricarbonyl[triphenylphosphine]cobaltate complex of the formula:

REFERENCES:
patent: 3923880 (1975-12-01), Westlake et al.
patent: 3946082 (1976-03-01), McVicker
patent: 3980702 (1976-09-01), Grinstead
patent: 4372889 (1983-02-01), Rizkalla
Saegusa et al, Journal of Organic Chem., vol. 42, No. 16, 2797-2798, (1977).
Tachibona et al, Chem. Letters, pp. 1765-1768, (1982).

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