Synthesis of various silacycles via the lewis acid-catalyzed intramolecular trans-hydrosilylation of unactivated alkynes

Abstract

Various silacycles with vinylsilane framework are synthesized via the Lewis acid-catalyzed intramolecular hydrosilylation of alkynes. The cyclization proceeds in an endo-trans or/and in an exo-trans manner, depending on the substrate structure. This methodology is applicable to the synthesis of five-, six-, seven-, and eight-membered medium-sized silacycles… (More)

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