Preparation of adipic acid by hydrocarbonylation of pentenic aci

Details Preparation of adipic acid by hydrocarbonylation of pentenic aci Preparation of adipic acid by hydrocarbonylation of pentenic aci

1991-09-18

1993-07-13

Prescott, Arthur C.

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

Organic compounds

Carboxylic acids and salts thereof

C07C 5114

Patent

active

052275230

ABSTRACT:
Adipic acid is selectively prepared, in good yields, by reacting at least one pentenic acid with water and carbon monoxide, the partial pressure of which, measured at 25.degree. C., being less than or equal to 12 bar, in the presence of a catalytically effective amount of a rhodium-based catalyst and at least one iodine-containing promoter therefor, at a temperature ranging from 100.degree. to 240.degree. C. and at superatmospheric pressure, and in a liquid reaction medium which comprises at least one hydrocarbon or chlorocarbon solvent, whether a saturated aliphatic or cycloaliphatic hydrocarbon, aromatic hydrocarbon or chlorinated derivative thereof.

REFERENCES:
patent: 3989747 (1976-11-01), Craddock et al.
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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