Sulfoxides, preparation from sulfides table

Sulfinic esters, aromatic, by oxidation of disulfides in alcohols, 46, 64 Sulfonation ot d,l camphor to d,l-10-camphorsulfomc acid, 45,12 Sulfoxides, table of examples of preparation from sulfides with sodium metapenodate, 46,79 Sulfur dioxide, reaction with styrene phosphorus pentachlonde to give styrylphosphomc diclilonde, 46,... 

With substrates 16b and 17a, Hoft and coworkers observed only low ee values of up to 4% for the hydroperoxides. On the other hand, phenyl ethyl hydroperoxide (16a) could be isolated in high enantiomeric excess of >99% from the CPO-catalyzed reaction. The observed enantioselectivities of the sulfoxides varied, depending on the conversion of the sulfide and the hydroperoxide used, being highest with 16a (92% ee). Unfortunately, the CPO-catalyzed resolution of chiral hydroperoxides is difficult on a preparative scale because of the high dilution necessary (0.5ttmolmL ). In the CiP-catalyzed kinetic resolution of 16a better results were obtained compared to the CPO-catalyzed reaction (see Table 5). 

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