Sulphinyl radicals

Free radicals, stabilization by sulphinyl and sulphonyl groups 533-535 Furans 638, 679, 840... 

Analogous relationships can be expected with phenolic sulphides. The unstable products of transformation are sources of thiyl, sulphinyl, and sulphonyl radicals, which may participate in the formation of sulphonate CXCV and other compounds present in the reaction mixture in very small amounts. It is possible that they are also the cause of formation of species which decompose catalytically tert-BuOOH (cf. also259)). 

In a further study of the Ce oxidizing system by e.p.r. methods, the rate of production of thiyl radicals was found to be ca. 10 1 mol s. Significant reactions in their subsequent oxidation were suggested to involve production of sulphinyl and sulphonyl radicals,... 

Sulphinyl-conjugated radicals R S(0)6r R , are formed from l,3-bis(alkane-sulphinyl)alkanes and HO radical, or from a sulphoxide with Ph radical. Discussion of structures and synthetic application of a-sulphinyl carbanions is in Chapter 2 in this volume. 

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