Indole Synthesis by Cobalt-Catalyzed Intramolecular Amidation via the Oxidatively Induced Reductive Elimination Pathway
作者:Aleksandrs Cizikovs、Emils E. Basens、Paula A. Zagorska、Artis Kinens、Liene Grigorjeva
DOI:10.1021/acscatal.3c05706
日期:2024.2.2
involving Co(IV) intermediacy are still underexplored. Herein, we report an efficient synthesis of indole-2-carboxylic esters via intramolecular amidation of α-amidoacrylates and experimental and computational studies of the reaction mechanism, which involves oxidatively induced reductive elimination from Co(IV) species.
使用高价钴催化的 C-H 键活化和功能化通常涉及 Co(III)/Co(I) 催化循环。由于缺乏与 Co(IV) 中间体的高反应性和不稳定性相关的证据和挑战,涉及 Co(IV) 中间体的 C-H 官能化机制研究的报告仍未得到充分探索。在此,我们报道了通过 α-酰胺丙烯酸酯的分子内酰胺化有效合成吲哚-2-羧酸酯,并对反应机理进行了实验和计算研究,其中涉及 Co(IV) 物质的氧化诱导还原消除。