Ene cyclisations of α-(prenyl)dialkylsilyloxy aldehydes: formation and oxidative cleavage of oxasilacyclohexanols
作者:Jeremy Robertson、Michael J. Hall、Petra M. Stafford、Stuart P. Green
DOI:10.1039/b306922m
日期:——
A variety of routes are described for the synthesis of α-silyloxy aldehydes in which the silicon atom bears a prenyl side chain. These compounds are shown to undergo stereoselective carbonyl ene cyclisation under mildly Lewis acidic conditions and the derived silacycles are cleaved to afford single diastereomers of functionalised triols.
介绍了多种合成具有预乙缩醛侧链的硅α-硅氧基醛的路线。这些化合物在温和的Lewis酸性条件下表现出立体选择性的碳基烯-环化反应,并且所得到的硅杂环可以裂解生成功能化的三醇的单一对映体。