α-Oxo Sulfones. 4. Correction of a Pretended α-Oxo Sulfone by an Unambiguous Synthesis of the Revised Structure

Article abstract of DOI:10.1021/jo00172a027

By an independent synthesis the oxidation product of 1,1-dichloro-2,2-dimethyl-1-(phenylthio)-3-butene (1) was shown not to be α-oxo sulfone "2" as published earlier but a phenylsulfonyl γ-butyrolactone, 3.This synthesis involves the intramolecular reaction of a sulfenic carboxylic mixed anhydride with an olefinic bond.A rationale for the formation of 3 from 1 is presented.