Enantioselective Nickel‐Catalyzed Migratory Hydrocyanation of Nonconjugated Dienes
作者:Rongrong Yu、Shanmugam Rajasekar、Xianjie Fang
DOI:10.1002/anie.202008854
日期:2020.11.23
Metal‐catalyzed chain‐walking reactions have recently emerged as a powerful strategy to functionalize remote positions in organic molecules. However, a chain‐walking protocol for nonconjugated dienes remains scarcely reported, and developments are currently ongoing. In this Communication, a nickel‐catalyzed asymmetric hydrocyanation of nonconjugated dienes involving a chain‐walking process is demonstrated
金属催化的链走反应最近成为一种功能强大的策略,可以使有机分子中的远端位置功能化。然而,很少有关于非共轭二烯的链走协议的报道,并且目前正在进行开发。在本交流中,展示了涉及链行走过程的非共轭二烯的镍催化不对称氢氰化。该反应显示出极好的区域选择性和化学选择性,并且可以耐受多种底物,从而以高收率和对映选择性提供产物。氘标记实验支持链步过程,该过程涉及迭代的β-H消除和重新插入过程。克级合成,区域收敛实验,