Process for preparation of 4- and 5-ketocarboxylic acids

Details Process for preparation of 4- and 5-ketocarboxylic acids Process for preparation of 4- and 5-ketocarboxylic acids

1990-05-01

1992-04-07

Dees, Jose G.

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

Organic compounds

Carboxylic acids and salts thereof

554115, C07C 5131

Patent

active

051030470

ABSTRACT:
This invention is a novel synthesis of 4-and 5-ketocarboxylic acids which includes the reaction of the appropriate delta- or gamma-lactone with a chromosulfuric acid solution and separating the 4- or 5-ketocarboxylic acid product from the reduced solution.

REFERENCES:
patent: 2759005 (1956-08-01), Starker et al.
patent: 3412116 (1968-11-01), Reinheckel et al.
patent: 3654326 (1962-04-01), Rosenberger

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