Cycloadditions of Allylsilanes - Part 22.¹ Stereoselective Synthesis of Cyclopentanes and Cyclobutanes by Lewis Acid Promoted [3+2] and [2+2] Cycloadditions of Allylsilanes
作者:Hans-Joachim Knölker、Arndt Schmidt
DOI:10.1055/s-0030-1258549
日期:2010.9
Lewis acid promoted [3+2] and [2+2] cycloadditions as a novel methodology for the stereoselective construction of cyclopentanes and cyclobutanes is described. Elegant applications of this methodology to the total synthesis of biologically active terpenoid natural products are presented. 1 Introduction 2 [3+2] Cycloadditions of Allylsilanes 2.1 Synthesis of Silylbicyclo[n.3.0]alkanes 2.2 Synthesis of Silylcyclopentanes
描述了路易斯酸的发展促进了 [3+2] 和 [2+2] 环加成,作为一种用于环戊烷和环丁烷立体选择性构建的新方法。介绍了这种方法在生物活性萜类天然产物的全合成中的优雅应用。1 引言 2 烯丙基硅烷的 [3+2] 环加成反应 2.1 甲硅烷基双环 [n.3.0] 烷烃的合成 2.2 甲硅烷基环戊烷的合成 2.3 炔酮的多米诺 [3+2] 环加成反应 2.4 甲硅烷基双环 [n.3.0] 烷烃的 [3+2] 环加成反应[3+2] 手性烯丙基硅烷的环加成反应 3 甲硅烷基环戊烷的转化 3.1 甲硅烷基双环 [n.3.0] 烷烃转化为对称烯烃 3.