Pericyclic Reactions

[2,3]-Sigmatropic Rearrangements of Ylids

Sulfur Ylid Rearrangements

Sulfur-Mediated Ring Expansions in Total Synthesis
   Vedejs, Accts. Chem. Res. 1984, 17, 358-364.
Cyclic Sulfides in Organic Synthesis,
   Vedejs, E.; Krafft, G. A. Tetrahedron 1986, 38, 2857.