A reaction of γ-chalcogen-substituted prop-2-ynyl cations with mild nucleophiles

M Yoshimatsu, H Shimizu, T Kataoka

Index: Yoshimatsu, Mitsuhiro; Shimizu, Hiroshi; Kataoka, Tadashi Journal of the Chemical Society, Chemical Communications, 1995 , # 2 p. 149 - 150

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Citation Number: 10

Abstract

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.