Kinetics of the reaction of 1,3-dinitrobenzene with methoxide ion in methanol solution. Part II. The role of nitroso-derivatives in the electron-transfer mechanism

Abstract

In the reaction of 1,3-dinitrobenzene and m-nitronitrosobenzene with MeO^– to yield trans-3,3′-dinitroazoxybenzene, an intermediate species was observed, the kinetics of formation and decomposition of which were followed as a function of temperature (30–47·2 °C) and MeO^– concentration (3–5M). An intermediate of the same kind was also detected in the reaction of p-nitronitrosobenzene with MeO^–. The suggested structure for this species and the proposed reaction scheme are consistent with the experimental data and kinetic parameters. The role of nitroso-derivatives in the electron-transfer mechanism has thus been fully interpreted.