Heating O-methyl (S)- prop-2-ynyl dithiocarbonate 1a–c with electrophilic alkenes 7a–d containing nucleophilic acetoxy group gives 1,3-dithiol-2-ones 9 by a new carbon–carbon bond forming process.
M. Poelert, W. Roger and S. Z. Zard, Chem. Commun., 1996, 743 DOI: 10.1039/CC9960000743
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