Deconjugation of α,β-Unsaturated Esters and an Intramolecular Michael Reaction of Bis-α,β-unsaturated Esters with Trialkylsilyl Trifluoromethanesulfonate in the Presence of Tertiary Amine: Synthesis of (+/-)-Ricciocarpin A

Article abstract of DOI:10.1039/P19930002251

Treatment of the α,β-unsaturated esters 1, 6 and 8 with trialkylsilyl trifluoromethanesulfonate in the presence of a tertiary amine gave, via silyl dienol ethers, the corresponding deconjugated esters 2, 7 and 9 as the major products, respectively.Reactio