Process for preparing .alpha.-keto-carboxylic acids from acyl ha

Details Process for preparing .alpha.-keto-carboxylic acids from acyl ha Process for preparing .alpha.-keto-carboxylic acids from acyl ha

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

044813686

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 tetracarbonyl cobaltate complex of the formula:

REFERENCES:
patent: 3116306 (1963-12-01), Hick
patent: 3790607 (1974-02-01), Lichstein
patent: 3928429 (1978-12-01), El-Chahawai
patent: 4128572 (1978-12-01), Cassar
patent: 4152352 (1979-05-01), Perron
Saegusa et al, J. of Org. Chem., vol. 42, No. 16, 2797-2798, (1977).
Tachibona et al., Chem. Letters, pp. 1765-1768, (1982).

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