Oxford University Press (OUP) Acta Medica Okayama 0366-7022 53 8 2024 Electrochemical synthesis of heterocyclic compounds via carbon–heteroatom bond formation: direct and indirect electrolysis upae146 EN Yasuyuki Okumura Division of Applied Chemistry, Graduate School of Environmental, Life, Natural Science and Technology, Okayama University Eisuke Sato Division of Applied Chemistry, Graduate School of Environmental, Life, Natural Science and Technology, Okayama University Koichi Mitsudo Division of Applied Chemistry, Graduate School of Environmental, Life, Natural Science and Technology, Okayama University Seiji Suga Division of Applied Chemistry, Graduate School of Environmental, Life, Natural Science and Technology, Okayama University Electrochemical organic synthesis has attracted attention as an environmentally friendly method for constructing heterocyclic compounds via carbon–heteroatom bond formation. Herein, we describe the representative examples of electrochemical reactions to produce heterocycles and discuss them according to whether they involve direct or indirect electrolysis. No potential conflict of interest relevant to this article was reported.