SEARCH Articles Figures Tables Ammonium ylide Ammonium ylides Ammonium ylides, allylic 2,3-sigmatropic rearrangements Ammonium ylides, cyclic 2,3-sigmatropic rearrangements Sigmatropic rearrangement allylic ammonium ylide Sigmatropic rearrangements of allyl ammonium ylides Ylides ammonium, -sigmatropic rearrangement