Regio‐ and Stereoselective Oxysulfonylation of Allenes.

The oxysulfonylation of aryl-substituted allenes (I) with arylsulfinic acids (II) proceeds readily leading to 2-sulfonyl allylic alcohols (III), whilst ester-substituted allene (VI) reacts with benzenesulfinic acid to afford terminal alkene (VII).