Sulfones allylation

Sulfones are thermally very stable compounds, diaryl derivatives being more stable than alkyl aryl sulfones which, in turn, are more stable than dialkyl sulfones allyl and benzyl substituents facilitate the homolysis by lowering the C—S bond dissociation energy17. Arylazo aryl sulfones, on heating in neutral or weakly basic media at 100°C, yield an aryl and arenesulfonyl radical pair via a reversible one-bond fission followed by dediazoni-ation of the aryldiazenyl radical (see Scheme 2 below)20. However, photolysis provides a relatively easy method for generating sulfonyl radicals from compounds containing the S02 moiety. 

Sulfon Allyl-methyl- XIII/5, 341 Thiiran 2,3-Dimethyl- -1,1-dioxid E21e, 5074 (R-CHN2 + R-CH2-S02-C1) Thioessigsaure Hydroxy- -O-ethylester E5, 798 (R-CN + R-OH/H2S)... 

Treatment of bisbenzenesulfonylmcthaii hydroxy sulfone. " Allylic sulfones are a cleaved by Sml2 in HMPA thus a new prep is available. However, the desulfurative eye bonyl group may belong to a different meel... 

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