Asymmetric Hydrophosphination of Heterobicyclic Alkenes: Facile Access to Phosphine Ligands for Asymmetric Catalysis
作者:Zhiwu Lu、Haoyang Zhang、Zhiping Yang、Ning Ding、Ling Meng、Jun Wang
DOI:10.1021/acscatal.8b04787
日期:2019.2.1
Asymmetric hydrophosphination is the most atomically economical and straightforward approach to the construction of chiral organophosphorus compounds. Good stereoselectivities have been achieved in asymmetric hydrophosphination of an electron-deficient C═C double bond, but substrates involving nonpolar C═C bonds remain difficult and are rarely tackled. Herein, we report asymmetric hydrophosphination
不对称氢磷酸化是手性有机磷化合物构建中最原子经济且最直接的方法。在缺乏电子的C═C双键的不对称加氢磷化反应中已经获得了良好的立体选择性,但是涉及非极性C═C键的底物仍然很困难,而且很少解决。在本文中,我们报道了非电子活化的双键的非对称氢磷酸化,其立体控制程度非常高。该策略为制备高产率(高达99%的产率)和对映选择性(高达ee的99%)的叔膦提供了一个方便且广泛适用的平台。