The exchange reaction of hydrogen atoms in the system sterically hindered hydroxylamine-nitroxyl radical

The rate constants of the direct and reverse exchange reactions of the hydrogen atom in the system sterically-hindered nitroxyl radical-hydroxylamine of the quinoline, imidazoline, pyrrolidine, and piperidine series as well as diarylhydroxylamine were determined. A scale of the reductive abilities of the hydrolamines was established. A low value of the isotope effect is typical of the reactions of hydrogen exchange in the systems hydroxylamine-nitroxyl radical. Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 7, pp. 1324–1328, July, 1998.