Direct electrocarboxylation of various N-acylimines with atmospheric CO2 is achieved in an undivided cell under mild conditions, affording substituted α-amino acids in yields of 62–95%. This reaction is conducted with high efficiency using triethanolamine as an external reductant under nonsacrificial anode conditions, and can be facilely performed on gram scale. Preliminary mechanistic studies including
各种N-酰基
亚胺与大气 CO 2的直接电羧化是在温和条件下在未分裂的电池中实现的,以 62-95% 的产率提供取代的
α-氨基酸。该反应在非牺牲阳极条件下使用
三乙醇胺作为外部还原剂高效进行,并且可以轻松地以克级进行。包括循环伏安法和对照实验在内的初步机理研究支持N自由基碳负离子作为关键中间体。