Selective hydrocarboxylation of propylene to isobutyric acid

Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof

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C07C 5114, C07C 51145

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active

046526773

ABSTRACT:
A process for the selective hydrocarboxylation of propylene to produce predominantly isobutyric acid in the liquid phase is provided. The reaction of propylene, carbon monoxide and water is effected at a temperature of about 75.degree. C. to about 150.degree. C. and at a pressure of about 250 psi to about 5000 psi in the presence of a suitable solvent and a catalyst comprising palladium or a palladium compound supported on an inert carrier, an organo-arsine ligand compound and a hydrogen halide.

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