Rh(II)-catalyzed intermolecular carboamination of pyridines via double Csp2–H bond activations
作者:Zhongfeng Luo、Jingxing Jiang、Lifang Zou、Xiaoyu Zhou、Junshan Liu、Zhuofeng Ke、Fengjuan Chen、Huanfeng Jiang、Wei Zeng
DOI:10.1007/s11426-023-1785-1
日期:2024.1
We disclose the development of the Rh-catalyzed amine-directed remote 5,6-carboamination protocol of pyridines via dual Csp2–H functionalizations. A variety of readily available 2-aminopyridines and 1,2,3-triazoles are allowed for coupling cyclization to access polyfunctionalized azaindoles. Mechanistic studies including DFT calculations unveil that relay carbenoid-electrophilic addition to pyridines
我们公开了通过双 Csp 2 –H 官能化开发 Rh 催化的胺引导的吡啶远程 5,6-碳胺化方案。各种容易获得的 2-氨基吡啶和 1,2,3-三唑可用于偶联环化以获得多官能化氮杂吲哚。包括 DFT 计算在内的机理研究揭示了吡啶的中继类胡萝卜素亲电加成和连续的吡啶基 Csp 2 –H 胺化参与了这一转化。该方法的合成后效用通过氮杂吲哚的多功能和位点选择性修饰来展示。