Ligand Relay Catalysis Enables Asymmetric Migratory Reductive Acylation of Olefins or Alkyl Halides
作者:Xiaoli Jiang、Feng-Tao Sheng、Yao Zhang、Gao Deng、Shaolin Zhu
DOI:10.1021/jacs.2c10785
日期:2022.11.30
is challenging, especially in asymmetric transformations. With each step in the catalytic cycle promoted by its privileged ligand and different steps well-connected by dynamic ligand exchange, synergistic combination of multiple ligands could potentially enhance the catalytic efficiency and selectivity. Now, this concept has been applied to the NiH-catalyzed asymmetric remote hydroacylation of olefins
过渡金属催化反应中配体的设计具有挑战性,尤其是在不对称转化中。由于催化循环中的每一步都由其优先配体促进,不同步骤通过动态配体交换良好连接,多个配体的协同组合有可能提高催化效率和选择性。现在,这一概念已应用于 NiH 催化的烯烃不对称远程加氢酰化和烷基卤化物的迁移酰化,具有出色的区域选择性和对映选择性,利用两个简单的配体,一个用于链行走,另一个用于不对称酰化。从丰富的烯烃/烷基卤化物和羧酸开始,可以在温和条件下有效地获得各种对映体富集的手性 α-芳基酮。