A general one-pot approach to cyclopropyl sulfones has been demonstrated, which involves the alkyl-ation of lithiomethyl phenyl sulfone with an epoxide followed by cyclization of the resulting carbanion. Alkylation of the dianion derived from 3-arylsulfonylpropan-1-ol and subsequent one-pot cyclopropanation produced a regioisomer of the cyclopropyl sulfone.
K. Tanaka and H. Suzuki, J. Chem. Soc., Perkin Trans. 1, 1992, 2071 DOI: 10.1039/P19920002071
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