Preparation of gamma-lactones

Details Preparation of gamma-lactones Preparation of gamma-lactones

1978-12-26

1981-01-27

Love, Ethel G.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

252456, C07D30732

Patent

active

042474671

ABSTRACT:
A process for preparing gamma-lactones which comprises contacting an alpha-olefin, oxygen and a carboxylic acid containing an alpha-hydrogen atom in the vapor phase at an elevated temperature and at a controlled pressure in the presence of a catalytically effective amount of a catalyst comprising an oxide of uranium. The catalyst preferably also contains at least one oxide selected from the group consisting of arsenic, antimony and bismuth oxides. A preferred process comprises contacting ethylene, oxygen and acetic acid at atmospheric pressure in the presence of a catalyst consisting essentially of oxides of uranium and antimony to produce gamma-butyrolactone.

REFERENCES:
patent: 3758514 (1973-09-01), Heiba et al.
patent: 3813416 (1974-05-01), Heiba et al.
patent: 3845116 (1974-10-01), Finkheiner et al.
patent: 3992417 (1976-11-01), Dessau et al.
patent: 4014910 (1977-03-01), De Klein
patent: 4081456 (1978-03-01), Heiba et al.

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