Catalytic dehalogenation of alpha-halogenated carboxylic acids/e

Details Catalytic dehalogenation of alpha-halogenated carboxylic acids/e Catalytic dehalogenation of alpha-halogenated carboxylic acids/e

1990-04-06

1993-03-02

Killos, Paul J.

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

Organic compounds

Carboxylic acids and salts thereof

562507, C07C 5100

Patent

active

051911183

ABSTRACT:
The alpha-halogenated carboxylic acids/esters are dehalogenated by reaction with hydrogen in the presence of a catalytically effective amount of (i) a Group VIII precious metal catalyst and (ii) either sulfur or a sulfur compound, or (iii) a novel precious metal/sulfur solid phase catalyst; the subject dehalogenation is especially adapted for enriching the monochloroacetic acid content of MCAA/DCAA mixtures.

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Chem. Ab. 102(20):173635p 1985.
"Hydrogenation Methods", P. N. Rylander, Academic Press, London 1985 p. 152.

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