α,β-Unsaturated sulphones (1) on treatment with tributylstannyl-Lithium in tetrahydrofuran at –78 °C, give the Michael type addition products, β-tributylstannyl sulphones (2), and their successive β-elimination by reaction with silica gel affords the desulphonylated olefins (3) in good yields.
M. Ochiai, T. Ukita and E. Fujita, J. Chem. Soc., Chem. Commun., 1983, 619 DOI: 10.1039/C39830000619
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