Treatment of chalcones, cyclohexanones and imines with trimethyloxosulfonium or trimethylsulfonium iodide and KOH in the solid state give cyclopropanones, oxiranes and aziridines, respectively, in good yields. Solid-state methylene transfer also occurs enantioselectively when an optically active sulfoximine and/or an optically active host compound is used.
F. Toda and N. Imai, J. Chem. Soc., Perkin Trans. 1, 1994, 2673 DOI: 10.1039/P19940002673
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