Insertions of Silylenes into Vinyl Epoxides: Diastereoselective Synthesis of Functionalized, Optically Active <i>trans</i>-Dioxasilacyclooctenes
作者:Michel Prévost、K. A. Woerpel
DOI:10.1021/ja906204a
日期:2009.10.14
communication describes a direct route to functionalized nonracemic trans-dioxasilacyclooctenes that involves stereoselective silylene insertions into vinyl epoxides to provide vinyl silaoxetane intermediates. These strained allylic silanes then undergo uncatalyzed allylation of aldehydes to afford trans-dioxasilacyclooctenes. Diastereoselective additions to these alkenes allow efficient transfer of planar