EXAMPLE I
Preparation of 2,3-Dihydro-5,6-diphenyl-1,4-oxathiin from 2-Phenylacetophenone and 2-Mercaptoethanol. (Method A)
Powdered 2-phenylacetophenone (1021 g., mp. 55.degree.-57.degree.) was charged into a three-necked flask equipped with a strong mechanical stirrer, a reflux condenser and a