Journal of Organic Chemistry p. 4798 - 4802 (1995)
Update date:2022-07-30
Topics:
Yoshimatsu, Mitsuhiro
Naito, Motoyo
Kawahigashi, Masataka
Shimizu, Hiroshi
Kataoka, Tadashi
γ-Sulfur-substituted propargyl alcohols 1a-e and 1ij reacted with polyphosphoric acid trimethylsilyl ester (PPSE) to give the α,β-unsaturated thioesters 3a-e and 3ij in good yields.However, the reactions of 3,3-dibutyl-1-(phenylthio)propargyl alcohol (1k) and 1-(phenylthio)ethynyl-1-cycloalkanols 1l-n with PPSE gave the enyne sulfides 2k-n exclusively.
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