作者:Birte Schulte、Roland Fröhlich、Armido Studer
DOI:10.1016/j.tet.2008.08.111
日期:2008.12
The paper describes stereoselective radical aryl migration reactions from sulfur in sulfonates to aryl radicals for the synthesis of axially chiral biaryls. A chirality center in secondary benzylic sulfonates is used to diastereoselectively (atroposelectively) install a stereogenic axis via a 1,5 aryl migration reaction. Atroposelectivity has not been investigated in stereoselective radical chemistry
该论文描述了从磺酸盐中的硫到芳基的立体选择性自由基芳基迁移反应,用于轴向手性联芳基的合成。仲苄基磺酸盐中的手性中心用于通过1,5芳基迁移反应非对映选择性地(对映异构地)安装立体异构轴。以前尚未在立体选择性自由基化学中研究过阻转选择性。获得了良好的收率(53–82%),但选择性低(高达2:1)。