Sulfoniosilylation of α,β-enones and α,β-enals with trialkylsilyl triflate and dimethyl sulfide at –78°C affords 3-trialkylsilyloxyalk-2-enylenesulfonium salts, which undergo facile nucleophilic substitution with various nucleophiles.
S. Kim, J. H. Park, Y. G. Kim and J. M. Lee, J. Chem. Soc., Chem. Commun., 1993, 1188 DOI: 10.1039/C39930001188
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