Process for the preparation of .epsilon.-caprolactone
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United States of America Patent
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Apr 26, 1988
Issued Date -
N/A
app pub date -
Jun 4, 1986
filing date -
Feb 20, 1981
priority date (Note) -
Expired
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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.
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