Substituent effect on the spin-trapping reactions of substituted N-benzylidene-t-butylamine N-oxides

Abstract

Relative rates of the reactions of substituted N-benzylidene-t-butylamine N-oxides with substitute phenyl free radicals have been determined by e.s.r. spectroscopic analyses of the products from competitive addition reactions. The substituent effect was interpreted in terms of a reaction mechanism involving an electron-transfer interaction between the reactants. The results are in accord with semi-empirical MO calculations.