Kr. Guertin et As. Kende, CHEMOSELECTIVE CATALYTIC-OXIDATION OF SULFIDES TO SULFONES WITH TETRAPROPYLAMMONIUM PERRUTHENATE (TPAP), Tetrahedron letters, 34(34), 1993, pp. 5369-5372
Tetrapropylammonium perruthenate has been found to be an efficient cat
alyst for the conversion of sulfides to sulfones. The method is highly
chemoselective and isolated double bonds are generally unaffected.