Visible-Light-Mediated (sp(3))Cα–H Functionalization of Ethers Enabled by Electron Donor–Acceptor Complex

[Image: see text] A synthetically beneficial visible-light-mediated protocol has been disclosed to achieve C–H amination of readily available feedstocks cyclic and acyclic ethers. A rarely identified N-bromosuccinamide–tetrahydrofuran electron donor–acceptor complex served as an initiator to functionalize both α-diazoketones and dialkyl azodicarboxylates. This developed methodology gives an alternative and milder way to construct the C–N bond and can be explored for the formation of C–C bond to perform arylation and allylation reactions.