Tetrahedron

Brønsted acid-promoted cyclizations of siloxy alkynes with unactivated arenes, alkenes, and alkynes

L Zhang, J Sun, SA Kozmin

文献索引：Zhang, Liming; Sun, Jianwei; Kozmin, Sergey A. Tetrahedron, 2006 , vol. 62, # 49 p. 11371 - 11380

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被引用次数: 17

摘要

In this article, we describe the development of a general concept for the development of new carbon–carbon bond-forming processes, which is based on Brønsted acid-mediated activation of a siloxy alkyne, followed by efficient interception of the resulting highly reactive ketenium ion by unactivated arenes, alkenes or alkynes. We found that trifluoromethane sulfonimide (HNTf2) proved to be a superior promoter of these reactions compared to a ...