Electrochemical/Photochemical Aminations Based on Oxidative Cross-Coupling between C-H and N-H

The construction of nitrogen-containing molecules remains at the cutting edge of organic synthesis because of its wide application in various areas. Instead of prefunctionalized substrates, using free C-H and N-H bonds in the starting materials can supply a more sustainable avenue to the C-N bond-forming reactions. Compared with the well-developed transition-metal-catalyzed protocols, the strategy of introducing optical or electrical energy into reactions is fantastic and appealing. As a result, visible light or electricity mediated amination transformations have continued to develop over the past several years. In this short review, recent progress of carbon-nitrogen bond-forming reactions based on the oxidative cross coupling between C(sp(2), sp(3))-H and N-H are summarized.