Steric effects on rates of dehalogenation of anion radicals derived from substituted nitrobenzyl halides

RK Norris, SD Barker, P Neta

Index: Norris, Robert K.; Barker, Steven D.; Neta, P. Journal of the American Chemical Society, 1984 , vol. 106, # 11 p. 3140 - 3144

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Citation Number: 36

Abstract

Abstract: One-electron reduction of nitrobenzyl halides produces the anion radicals, which subsequently undergo dehalogenation to form nitrobenzyl radicals. The rate constants for these processes have been studied by pulse radiolysis in aqueous alcoholic solutions. a- Substitution with a methyl group increases the rate of dehalogenation by weakening the CX bond. On the other hand, substitution with a tert-butyl group was found to decrease the ...