The m-and p-nitrophenylsulfonoxylation of alkylbenzenes in ethyl acetate solution is first order in peroxide and is not acid catalyzed. Although simple first-order kinetics with respect to alkylbenzenes are observed, with benzene itself the reaction first order with respect to arene competes with a reaction of the peroxide which is zero order with respect to the aromatic. In methylene chloride, arylsulfonoxylation gives simple first-order kinetics with respect to benzene as well as toluene and ethylbenzene. In ethyl acetate, the relative reactivities of the alkylbenzenes with respect to benzene are in good agreement with those previously reported from competitive reactions. The rates with benzene and hexadeuteriobenzene are identical; therefore, carbon-hydrogen bond breaking is not rate determining. Mesitylene is 1350 times as reactive as benzene for p-nitrophenylsulfonoxylation; therefore, -complex formation is not rate determining. The energies of activation for p-and TO-nitro phenylsulfonoxylation calculated from the pseudo-first-order rate constants are, respectively, benzene, 18, 17 (corrected for the competing solvolytic reaction);

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Durch Verwendung der beiden Nitrobenzolsulfonylperoxide (I) und (II) werden in den beiden Arbeiten zahlreiche Aromaten (III) einer Nitrophenylsulfonoxylierung zu (IV) unterworfen.

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