126696-78-4

Allenyl Chloromethyl Sulfone is prepared by addition of chloromethylsulfenyl chloride, ClCH2SCl, to Propargyl Alcohol to give S-chloromethylpropargyl sulfenate, ClCH2SOCH2CCH, which via 2,3- sigmatropic rearrangement gives allenyl chloromethyl sulfoxide, ClCH2SOCH=C=CH2, which eventually, on oxidation, gives the title reagent (47%).¹

potential alkylating agent; use in fume hood.

1. Block, E.; Putman, D. JACS 1990, 112, 4072