Journal of the Chemical Society. Chemical communications p. 149 - 150 (1995)
Update date:2022-08-03
Topics:
Yoshimatsu, Mitsuhiro
Shimizu, Hiroshi
Kataoka, Tadashi
γ-Chalcogen-substituted prop-2-ynyl cations are generated by the reactions of diethyl acetals 1 and 2 with BF3-Et2O and react with various mild nucleophiles without isomerisation to allenyl cations to afford the prop-2-ynylated products 3a-e and 5a-c in good yields.
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