作者:Sha, Yuli、Zhang, Yu、Tian, Qinye、Tong, Huixin、Zhang, Weiya、Zhu, Xianghui、Sun, Zhizhong、Chu, Wenyi
DOI:10.1002/adsc.202400312
日期:——
An electrochemical method with high faradaic efficiency was developed for the ruthenium‐catalyzed C8‐regioselective aroylation of quinoline N‐oxides under oxidant‐free conditions by using aryl α‐ketoacids as the aroylation reagent. A series of 8‐aroylquinoline N‐oxides were effectively synthesized in moderate‐to‐excellent yields. Furthermore, the proposed method was successfully applied to the gram‐scale
开发了一种具有高法拉第效率的电化学方法,使用芳基 α-酮酸作为芳酰化试剂,在无氧化剂条件下钌催化喹啉 N-氧化物的 C8 区域选择性芳酰化。一系列 8-芳酰基喹啉 N-氧化物被有效合成,产率中等至优异。此外,所提出的方法已成功应用于微管蛋白聚合抑制剂的克级合成。此外,根据循环伏安法和控制实验的结果,提出了脱羧自由基酰化的合理反应机制。总的来说,该方法为喹啉 N-氧化物的 C8 区域选择性芳酰化提供了一种新的解决方案。