Kinetics of the disproportionate of N-arylhydroxylamines at different hydrogen partial pressures

Abstract

Dependence of the reaction rate on the hydrogen partial pressure 400–150 hPa, was noted in the disproportionate of N-arylhydroxylamines in the presence of a platinum catalyst in a hydrogen-nitrogen atmosphere. This dependence is attributed to the increase in the amount of oxygen-containing products, which are strongly adsorbed on the catalyst and inhibit the reaction. At hydrogen pressures above 0.1 MPa, oxygen-containing products are not formed and the rate of disproportionation is not dependent on the hydrogen pressure.