Electrochemical Reactors Enable Divergent Site Selectivity in the C−H Carboxylation of N‐Heteroarenes

Abstract Catalytic and switchable C−H functionalization of N ‐heteroarenes under easily tunable conditions is a robust but challenging tool for the construction of biologically relevant compounds. Recently, a general electrochemical strategy has been developed for the direct C−H carboxylation of N ‐heteroarenes with CO 2 , and by simply choosing different types of cell setups, carboxylated products are furnished with excellent and tunable site selectivity. This study also paves the way for regulating the reactivity modes in electrochemical synthesis.