RHODIUM CARBENOID MEDIATED CYCLISATIONS. PART 5. SYNTHESIS AND REARRANGEMENT OF CYCLIC SULPHONIUM YLIDES; PREPARATION OF 6- AND 7-MEMBERED SULPHUR HETEROCYCLES

Article abstract of DOI:10.1016/S0040-4020(01)96017-X

Treatment of diazo mercaptans with rhodium(II) acetate gives six- and seven-membered sulphur heterocycles; diazo sulphides give cyclic sulphonium ylides, which are isolable, or rearrange, depending on the nature of the substituent on sulphur.