Preparation of adipic acid by hydrocarboxylation of pentenoic ac

Details Preparation of adipic acid by hydrocarboxylation of pentenoic ac Preparation of adipic acid by hydrocarboxylation of pentenoic ac

1993-07-09

1994-05-17

Prescott, Arthur C.

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

Organic compounds

Carboxylic acids and salts thereof

C07C 5114

Patent

active

053129792

ABSTRACT:
Adipic acid is selectively prepared via hydrocarboxylation of pentenoic acids, by reacting water and carbon monoxide with at least one pentenoic acid, in the presence of a catalytically effective amount of a rhodium-based catalyst and at least one iodinated promoter therefor, at a temperature ranging from 100.degree. to 240.degree. C. and a pressure greater than atmospheric, and wherein (a) such reaction is carried out in the absence of a third reaction solvent and (b) the carbon monoxide partial pressure, measured at 25.degree. C., is less than or equal to 20 bar.

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patent: 4433165 (1984-02-01), Singleton
patent: 4622423 (1986-11-01), Burke
patent: 4788334 (1988-11-01), Burke
patent: 4861912 (1989-08-01), Drent et al.

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