Merging Grubbs second-generation catalyst with photocatalysis enables<i>Z</i>-selective metathesis of olefins: scope, limitations, and mechanism
作者:Saïf Eddine Chérif、Avisek Ghosh、Saloua Chelli、Isabelle M. Dixon、Jamil Kraiem、Sami Lakhdar
DOI:10.1039/d2sc03961c
日期:——
Olefin cross-metathesis is a cornerstone reaction in organic synthesis where stereoselectivity is typically governed by the structure of the catalyst. In this work, we show that merging Grubbs second generation catalyst, a classical E-selective catalyst, with a readily available photocatalyst, enables the exclusive formation of the contra-thermodynamic Z-isomer. The scope and limitations of this unprecedented
烯烃交叉复分解是有机合成中的基石反应,其中立体选择性通常由催化剂的结构决定。在这项工作中,我们展示了将 Grubbs 第二代催化剂(一种经典的E选择性催化剂)与现成的光催化剂合并,能够独家形成反热力学Z异构体。基于计算和实验机制数据讨论了这种前所未有的方法的范围和局限性。