Dithiirane 1-oxides rearrangement

Fascinating chemistry has been developed by Nakayama and Ishii on the first dithiiranes, which were prepared by oxidation of dithietanes and subsequent rearrangement. It was recently reviewed [82, 83]. Monodesulfurisa-tion of dithiiranes was achieved with triphenylphosphine or triethylamine to yield the corresponding thioketones [84-86]. 

Charged dithiiran intermediates have been suggested to be involved in the rearrangement of 6-phenylthioacetamidopenicillin sulphoxide j-nitrobenzyl ester, " the anodic oxidation of em-disulphides (thioketals), " and in the decomposition of a sulphonium salt containing a (phenylthio)methyl substituent. ... 

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