Lactones

Details Lactones Lactones

1974-04-05

1976-03-16

Sutto, Anton H.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260526N, C07D30732

Patent

active

039445720

ABSTRACT:
A .delta.- or .epsilon.- lactone is heated in the vapour phase and the presence of a cracking catalyst to form a monounsaturated acyclic carboxylic acid. For example .epsilon.-caprolactone gives .delta. - .epsilon. hexenoic acid. This acid is then cyclised by heating with a strong protonating agent. In the example the product is .gamma.-caprolactone or 4-hexanolactone.

REFERENCES:
patent: 2876258 (1959-03-01), Phillips et al.
patent: 3037052 (1962-05-01), Bortnick
Ansell et al., Quarterly Reviews, 1964, pp. 211-225.

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