The catalytic asymmetric synthesis of 3-substituted benzo-fused sultams employing the Corey-Bakshi-Shibata reduction with catecholborane of the corresponding cyclic N-sulfonylimines is reported. Good to excellent yields (74-95%) and enantiomeric excesses (69-94%) are obtained.
据报道,采用相应环状 N-磺
酰亚胺的
儿茶酚硼烷进行 Corey-Bakshi-Shibata 还原,催化不对称合成 3-取代苯并稠合磺内酰胺。获得良好至优异的产率(74-95%)和对映体过量(69-94%)。