Electrochemical Synthesis of Benzo[d]imidazole via Intramolecular C(sp3)-H Amination

An electrochemical dehydrogenative amination for the synthesis of benzimidazoles was developed. This electrosyn-thesis method could address the limitations of the C(sp3)-H intramolecular amination synthesis reaction and provide novel access to obtain 1,2-disubstituted benzimidazoles without tran-sition metals and oxidants. Under undivided electrolytic conditions, various benzimidazole derivatives could be synthesized, exhibiting functional group tolerance.

Automated summary

An electrochemical dehydrogenative amination method has been developed for the synthesis of benzimidazoles, providing a novel route to 1,2-disubstituted benzimidazoles without the need for transition metals and oxidants. Various benzimidazole derivatives can be synthesized under undivided electrolytic conditions, demonstrating functional group tolerance.