213380-74-6Relevant academic research and scientific papers
The exchange reaction of hydrogen atoms in the system sterically hindered hydroxylamine - Nitroxyl radical
Malievskii,Koroteev
, p. 1287 - 1291 (2007/10/03)
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 hydroxylamines was established. A low value of the isotope effect is typical of the reactions of hydrogen exchange in the systems hydroxylamine - nitroxyl radical.
EFFECT OF THE CHEMICAL STRUCTURE OF NITROXYL RADICALS ON THEIR REACTIVITY IN THE REACTION WITH HYDRAZOBENZENE AND TETRANITROMETHANE
Malievskii, A. D.,Koroteev, S. V.,Volodarskii, L. B.,Shapiro, A. B.
, p. 2331 - 2338 (2007/10/02)
The reaction rate constants of reduction of stable radicals of different classes by hydrazobenzene in hexane at ca. 20 deg C, in the range of 0.4 - 5*103 M-1 sec-1, were determined; a single scale of the oxidative properties of stable nitroxyl radicals was constructed.The rate constants of oxidation of a series of nitroxyl radicals by tetranitromethane in aqueous medium at ca. 20 deg C, in the range of 0.06 - 10 M-1 sec-1, were determined.It was shown that the oxidative properties of the nitroxyl group decrease slightly with an increase in its reducing properties for nitroxyl radicals of the piperidine and imidazoline series in reactions with ascorbic acid and tetranitromethane in aqueous medium, respectively.
The Oxidative Properties of Nitroxy-radicals in Their Reactions with Sterically Hindered Hydroxylamines
Dikanov, S. A.,Grigor'ev, I. A.,Volodarskii, L. B.,Tsvetkov, Yu. D.
, p. 1696 - 1699 (2007/10/02)
A relative scale of the oxidative properties of cyclic nitroxy-radicals has been constructed and the influence of various structural factors on the oxidising capacity of the nitroxy-group in the radicals has been investigated.It is shown that the oxidative properties of the nitroxy-group in cyclic nitroxy-radicals become more pronounced with the increase in ring size.A relation has been established between the oxidative properties and the electron-accepting properties of functional groups separated from the nitroxy-group by two and more ?-bonds.
