Method for the production of alicyclic anhydrides

Details Method for the production of alicyclic anhydrides Method for the production of alicyclic anhydrides

1975-02-18

1976-08-31

Gotts, Lewis

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 5156

Patent

active

039781208

ABSTRACT:
A method is disclosed for the preparation of alicyclic anhydrides, useful intermediates in the preparation of alicyclic ketenes which can be converted into lactams. The instant method comprises heat-treating an alicyclic acid in a metallic reactor, free of nickel, under subatmospheric pressure. A catalyst, such as an alkyl ester of selenphosphoric acid, has given good results.

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patent: 2856426 (1958-10-01), Estabrook
patent: 2872481 (1959-02-01), Vogt
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