... Tetrahedron Letters. Volume 35, Issue 28, 11 July 1994, Pages 4955–4958. Cover image Cover image. An efficient method for the oxidation of sulfides to sulfones. ... 10. 3; SW Kaldor, M. Hammond; Tetrahedron Lett., 32 (1991), p. 5043. 4; KR Guetin, AS Kende; ...