Highly diastereo- and enantioselective construction of both central and axial chiralities by Rh-catalyzed [2 + 2 + 2] cycloaddition
作者:Takanori Shibata、Mayumi Otomo、Yu-ki Tahara、Kohei Endo
DOI:10.1039/b814014f
日期:——
enynes, possessing an ortho-substituted aryl group on their alkyne terminus, with acetylenedicarboxylates. Bicyclic cyclohexa-1,3-dienes with both central and axial chiralities were obtained in extremely highly diastereo- and enantioselective manner.
阳离子Rh-SEGPHOS配合物催化炔烃的分子间[2 + 2 + 2]环烯加成反应,该炔烃在炔烃末端具有邻位取代的芳基,并带有炔基二羧酸酯。以极非对映和对映选择性的方式获得具有中心和轴向手性的双环环己-1,3-二烯。