fig1
Figure 1. Strategies for pyridine C-H functionalization. (A) Common strategies on different sites with alkylation, arylation, borylation and halogenation. (B) Precedents for C-H carboxylation of pyridine and related N-heteroarenes with CO2. (C) New concept of regiodivergent electrochemical C-H carboxylation of pyridines.
