EPR study of radical products generated from N-alkylbenzylamines by the action of some peroxo and lead(IV) agents

摘要

To understand the behavior of secondary amines in the role of antioxidants, in more detail, the radical transformations of N-alkylbenzylamines in the presence of different agents were investigated using EPR spectroscopy. The aminoxyl radicals prepared by the reaction with 3-chloroperbenzoic acid undergo the transformations at alkyl substituent by the addition of t-BuO2 center dot radicals, secondary aminoxyls being the main radical product. The reaction with redox agents like PbO2 and/or Pb(OAc)(4) also mostly proceeds at the alkyl substituents and results in the generation of C-centered radicals detectable by spin trapping method.