Kinetics of the Tungstate-catalyzed H2O2 Oxidation of Amines in Aqueous Methanol. Acidity Effect

Article abstract of DOI:10.1246/bcsj.53.285

Oxidation of N,N-dimethylaniline and benzylamine with H2O2 catalyzed by Na2WO4 has been kinetically studied in buffered 50 percent aqueous methanol at 25 deg C.The rates with a catalytic amount of Na2WO4 fit Eq.: v = k_tt⁰ and the pH profile of rate constant shows no dissociation of peroxotungstate at pH 5-10.N,N-Dimethylaniline gives N-oxide (73percent) and benzylamine gives benzaldehyde oxime (65percent) under the present kinetic conditions.