Organocatalytic Radical and Electron Transfer Reactions
Abstract
Open shell (radical and radical ionic) reactions are distinguished by complementary chemoselectivity compared to ionic (closed‐shell) reactions. Conditions for synthetically useful asymmetric intra‐ and intermolecular α‐alkylation, allylation, arylation, fluoroalkylation, and heteroatom functionalization of carbonyl compounds have emerged via electron‐transfer mediated reactions, including oxidative conditions, redox photoreactions, and purely photochemical approaches.