Process for the production of one or more carboxylic acid...

Details Process for the production of one or more carboxylic acid... Process for the production of one or more carboxylic acid...

C - Chemistry, Metallurgy

07

C

260/536.3

C07C 53/12 (2006.01) C07C 51/54 (2006.01) C07C 53/122 (2006.01)

Patent

CA 1202321

ABSTRACT OF THE DISCLOSURE An olefln is reacted with an alcohol and carbon monoxide using a halide promoted rhodium or iridium catalyst to form an anhydride of a carboxylic acid, for example, ethylene is reacted with methanol and carbon monoxide to form a mixture of acetic and propionic anhydrides. The reaction rate is improved by including a quaternary ammonium or phosphonium copromoter. Desirably water is excluded from the reaction.

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