This review summarizes recent advances in electrochemical and photocatalytic C–H functionalization of indolizines, with an emphasis on the construction of C–C and C–X (X = S, Se, N, Cl, Br, etc.) bonds.
Developments in the synthesis of indolizines during the last decade are reviewed, with special emphasis given to strategies relying on pyrrole derivatives and on π-expanded systems.
Regioselective electrochemical C–H sulfonylation–bromination between indolizines, sodium sulfinates, and KBr has been established in an undivided cell, in which KBr serves as both the brominating agent and electrolyte.
This review comprehensively summarizes the recent advances in selective mono-/dichalcogenation and exclusive dichalcogenation of various C–H bonds via transition-metal-catalyzed/mediated, photocatalytic, electrochemical or metal-free approaches.
Tricyclic indolizines can be obtained in water in one step by a Morita–Baylis–Hillman/aza-Michael cyclization/dehydration cascade.