Sequenced Reactions with Samarium(II) Iodide. Tandem Nucleophilic Acyl Substitution/Ketyl−Olefin Coupling Reactions
作者:Gary A. Molander、Christina R. Harris
DOI:10.1021/ja952619k
日期:1996.1.1
Samarium(II) iodide has been employed to promote a tandemintramolecular nucleophilic acyl substitution/intramolecular ketyl−olefin coupling cyclization sequence, generating bicyclic, tricyclic, and spirocyclic ring systems in excellent yield and with high diastereoselectivity. This versatile reaction sequence allows entry to several different naturally occurring tricyclic systems containing the angular
碘化钐 (II) 已被用于促进串联分子内亲核酰基取代/分子内羰基-烯烃偶联环化序列,以优异的产率和高非对映选择性生成双环、三环和螺环系统。这种通用的反应序列允许进入包含角形和线性三喹烷骨架的几种不同的天然三环系统。