Two new syntheses of optically active [16O,18O]sulphones are reported. One uses reactions of known stereochemical course, thus allowing the determination of the absolute configuration of [16O,18O]sulphones. The other, oxidation of sulphoxides by (dichloroiodo)benzene, proceeds via nucleophilic attack at a tetraco-ordinate hexavalent sulphur atom and involves overall inversion of configuration.
R. Annunziata, M. Cinquini and S. Colonna, J. Chem. Soc., Perkin Trans. 1, 1972, 2057 DOI: 10.1039/P19720002057
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