Redox behaviour of azulenyl nitrones: fully reversible one electron oxidation by cyclic voltammetry at potentials in the range of biological antioxidants

Abstract

The one electron oxidation chemistry of azulenyl nitrones 4 and 5 employing cyclic voltammetry reveals that, unlike conventional nitrone spin traps such as PBN and S-PBN, such oxidation is electrochemically and chemically reversible at potentials near or within those of important biological chain-breaking antioxidants.