Journal of the American Chemical Society

Reactions of Carbon Monoxide at High Temperature. I. A New Synthesis of Phthalic Anhydrides

WW Prichard

Index: Prichard Journal of the American Chemical Society, 1956 , vol. 78, p. 6137

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Citation Number: 15

Abstract

A mixture of benzoic anhydride, phthalic anhydride and benzene is formed by the reaction of bromo-or chlorobenzene, carbon monoxide and alkali metal carbonates or orthophosphates in the presence of nickel tetracarbonyl. Under optimum conditions, phthalic anhydride is obtained in 75% conversion. Benzoic anhydride may be the immediate precursor of phthalic anhydride, as shown by its conversion to phthalic anhydride and benzene by heating with ...