1. for a corresponding epoxidation see;Aggarwal;Standen Org Chem Standen Am Chem Soc,1996
2. Stereoselective synthesis of three - membered rings q Pure Scheme;Hansen;Jacbosen Angew Chem Int Engl Org Chem Org Chem Tetrahedron Lett Appl Chem Org Chem,1995
3. in press;Zhou;Chem Soc Perkin Trans
4. Synthesis;Gorzynski Smith;Tetrahedron,1984