Process for the preparation of 2,3-dihydro-5,6-diphenyl-1,4-oxathiin
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United States of America Patent
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Apr 21, 1981
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N/A
app pub date -
Jun 9, 1980
filing date -
May 2, 1980
priority date (Note) -
Expired
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Abstract
2,3-Dihydro-5,6-diphenyl-1,4-oxathiin is prepared by reacting benzoin and 2-mercaptoethanol in an alkanol solvent of 2 to 8 carbon atoms and an acidic catalyst. The use of alcohol solvent in lieu of aromatic solvents gives much greater purity with much better yields.
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