The catalytic carboxylation of C(sp2)–H bonds using CO2 is an efficient strategy to produce carboxylic acids; however, the carboxylation of azines is a challenge. Now, a visible-light-driven, thiolate-catalysed method for the carboxylation of azine C(sp2)–H bonds using CO2 is reported, enabling the synthesis of N-heteroaromatic carboxylic acids with excellent regiocontrol.
- Yuan-Xu Jiang
- Li-Li Liao
- Da-Gang Yu
