SEARCH Articles Figures Tables 1,3-Sigmatropic-alkyl migration Alkyl group sigmatropic rearrangements Alkyl sigmatropic, allyl vinyl ethers Sigmatropic -alkyl rearrangements Sigmatropic Hydrogen and Alkyl Shifts Sigmatropic Shifts of Hydrogen and Alkyl Groups Sigmatropic rearrangements alkyl shifts Sigmatropic rearrangements of alkyl groups