Intramolecular coupling of two radical centers through 1,1-diphenylethylene chromophores. Isomeric dinitroxides vinylogous to trimethylenemethane, tetramethyleneethane, and pentamethylenepropane
An electrochemical cinnamyl C—Hamination reaction in the absence of transition metal catalyst and oxidant was reported. The choice of carbonyl sulfamate as nitrogen source is the key to achieve desired chemoselectivity. A series of terminal amine derivatives are prepared using this protocol and the sulfonyl group can be removed with basic hydrolysis. The reaction is suggested to proceed via a continuous