A short and stereospecific route to cis-1,2-divinyl compounds from derivatives of the readily available 3,3-dioxide (1) of 3-thiabicyclo[3.2.0]heptane-6,7-dicarboxylic anhydride by cheleotropic elimination of SO2 is reported.
J. I. G. Cadogan, I. Gosney, L. M. McLaughlin and B. J. Hamill, J. Chem. Soc., Chem. Commun., 1980, 1242 DOI: 10.1039/C39800001242
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