Method of making certain 2,3-dihydro-1,4-dithiins
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United States of America Patent
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Mar 9, 1982
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N/A
app pub date -
Mar 26, 1981
filing date -
Dec 2, 1980
priority date (Note) -
Expired
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Abstract
A method of making certain 2,3-dihydro-1,4-dithiins of the following formula by the action of alpha-hydroxyketones (acyloins) of 1,2-dithiols: ##STR1## wherein R.sup.1 and R.sup.2 are hydrogen or alkyl having 1 to 6 carbon atoms or are joined together to form a ring with 3 or 4 methylene groups, and R.sup.3 and R.sup.4 are hydrogen or the same or different alkyl groups having 1 to 10 carbon atoms, which alkyl groups may be substituted with lower alkoxy groups.
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