Acid accelerated hydrocarboxylation

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

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2604109R, 560204, 560207, C07C 5114

Patent

active

047883340

ABSTRACT:
A process for the production of carboxylic acids by the hydrocarboxylation of olefinically unsaturated alkenes or esters using a rhodium catalyst, an iodide promoter, a solvent selected from the class consisting of methylene chloride, 1,2-dichloroethane, and C.sub.6 to C.sub.9 aromatic solvents, and an accelerator which is an acid having a pKa in the range of 4.2 to 5.2.

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