Spin Trapping Studies of Peroxyl Radicals. Detection of the Reactive Intermediates for Oxidation Generated from O2−• and Sulfonyl, Sulfinyl, and Phosphoryl Chlorides

Abstract

The spin trapping studies by ESR have demonstrated that O₂^−• efficiently reacts with 2-nitrobenzenesulfonyl chloride, 2-nitrobenzenesulfinyl chloride, and diphenylphosphoryl chloride, to result in the formation of their peroxyl radicals, some of which have been key intermediates for site-selective oxidation of certain organic molecules and argued whether they exist as anion and/or radical form.