[2,3]-Sigmatropic Rearrangements of Allylic Sulfur Compounds -- [2,3]Sigmatropic Rearrangements of Propargylic and Allenic Systems -- Sulfur Participation in [3,3]-Sigmatropic Rearrangements -- Thione–Thiol Rearrangement: Miyazaki–Newman–Kwart Rearrangement and Others -- The Smiles Rearrangement and the Julia–Kocienski Olefination Reaction.