Enantio‐ and Regioselective Electrooxidative Cobalt‐Catalyzed C−H/N−H Annulation with Alkenes
作者:Qi‐Jun Yao、Fan‐Rui Huang、Jia‐Hao Chen、Ming‐Yu Zhong、Bing‐feng Shi
DOI:10.1002/anie.202218533
日期:2023.3.6
electrooxidative cobalt-catalyzed enantioselective C−H/N−H annulation with olefins (up to 99 % ee) using tBu-Salox as chiral ligand. The cooperative effect between tBu-Salox and 3,4,5-trichloropyridine enabled the highly enantio- and regioselective C−H annulation with the more challenging α-olefins (up to 96 % ee and 97 : 3 rr). Mechanistic studies provided insights into the mechanism of this reaction
报道了第一个使用t Bu-Salox 作为手性配体的电氧化钴催化的对映选择性 C−H/N−H 环化与烯烃(高达 99% ee) 。t Bu-Salox 和 3,4,5-三氯吡啶之间的协同作用使具有更高对映选择性和区域选择性的 C−H 环化与更具挑战性的 α-烯烃(高达 96% ee 和 97:3 rr)成为可能。机理研究提供了对该反应机理的见解。