SEARCH Articles Figures Tables Propargyl rearrangement Propargylic rearrangement Propargylic sulfonium ylides Propargylic ylides Sigmatropic -rearrangements rearrangement Sulfonium Sulfonium rearrangement Sulfonium ylide Sulfonium ylides Sulfonium ylides, sigmatropic rearrangement Ylide rearrangement Ylides rearrangement Ylides sigmatropic rearrangement