Process for the preparation of .epsilon.-caprolactone

Details Process for the preparation of .epsilon.-caprolactone Process for the preparation of .epsilon.-caprolactone

1986-06-04

1988-04-26

Fan, Jane T.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D31304

Patent

active

047406038

ABSTRACT:
This invention relates to a process for the preparation of stable solutions of .epsilon.-caprolactone by means of the oxidation of cyclohexanone by a percarboxylic acid containing 2 to 4 carbon atoms. According to the invention, the percarboxylic acid is in the form of a crude solution, such as that resulting from the reaction of hydrogen peroxide with the corresponding carboxylic acid in the presence of a boric acid catalyst with the continuous elimination of water by azeotropic entrainment.

REFERENCES:
patent: 2877266 (1959-03-01), Korach
patent: 3064008 (1962-11-01), Phillips et al.
patent: 3264346 (1966-08-01), Weiberg et al.
patent: 3517033 (1970-06-01), Weiberg
patent: 3766212 (1973-10-01), Waldmann
patent: 4267124 (1981-05-01), Hardy et al.

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