EPR Studies on the SmI2-Promoted Coupling of N-(N‘,N‘-Dialkylaminoalkyl)benzotriazoles

Radicals generated in the SmI2-promoted coupling of N-(N‘,N‘-dialkylaminoalkyl)benzotriazoles 1 have been detected using the EPR spin-trapping technique. Single electron transfer (SET) between 1 and SmI2 is discussed as a mechanism for the formation of the radicals.