heterobicyclic alkenes has been already established, however, the asymmetric version has never been uncovered. Herein, we describe a Rh(III)-catalyzed asymmetric carboboration of heterobicyclic alkenes, including 7-oxa- and 7-azabenzonorbornadienes, via borylative dimerization. During the transformation, another heterobicyclic alkene acts as electrophilic carbon reagent. The carboboration product bearing
过渡
金属催化的杂双环烯烃的碳
硼化已经建立,但是,不对称形式从未被发现。在本文中,我们描述了通过
硼化二聚作用,Rh(III)催化的杂环双环烯烃(包括7-氧杂-和7-氮杂苯并降
冰片二烯)的不对称碳
硼化。在转化过程中,另一种杂双环烯烃用作亲电碳试剂。可以高效地获得带有七个手性中心的碳
硼化合物,并具有良好至高产率(70-98%)和出色的对映选择性(98-> 99%ee)。此外,还提出了碳
硼化产物的几种转化。