Erowid References Database
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Kotas J, Vesely K, Pac J.
“Oxidation of benzyl alcohol, allylbenzene, methyl benzyl ketone,
and &269umene by cobalt III complexes”.
Chem zvesti. 1974;28(5):646-658.
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Abstract
Kinetic parameters4 were determined for the oxidation of benzyl alcohol, allylbenzene, cumene, and methyl benzyl ketone, respectively donor-acceptor association equilibria accompanying these oxidations were examined. Thermodynamic kinetic parameters of the studied reactions obey the straight-line dependence of the &313effler correlation. The Leffler correlation lines can be plotted even for organic compounds oxidations induced by other oxidation agents, the position of the correlation line being dependent upon the redox potential of the agent.
The oxidation of organic compounds by ions and complexes of polyvalent metals has been a subject of considerable interest. Most of the authors, however, focused their attention oh the studies of the reaction course in water or polar solutions, the reason being that most of the oxidation agents generally used are well soluble and satisfactorily defined in the latter type of solvents. These studies havt resulted in a series of monographs on the subject see e.g. [1 — 4].
The investigation of stabilization and degradation reactions in macromolecular chemistry requires information on the course of oxidative reactions proceeding in nonpolar media, which represent a better model of the polymer phase. For this purpose it is necessary to use electroneutral, well soluble complexes of polyvalent metals, chelates being the best choice.
A similar topic has been treated by Volger and Brackman [5 — 7] who studied the oxidation of carbonyl compounds by copperII salts in methanol Lewis and Singer [8] on the other hand prepared a series of radical cations through the oxidation of aromatic hydrocarbons by antimonyV chloride in dichloroethane. Moreover, some works of Denisov's group deal with the kinetics of oxidation of phenol and alcohols by cobaltIII acetylacetonate in benzene, n-heptane, or tert-hutyl alcohol [9—11]. In our previous communication [14] we reported on the oxidation of benzyl alcohol by cobaltIII acetylacetonate The formation of an associate consisting of one oxidation agent molecule combined with one or two benzyl alcohol molecules precedes the oxidation reaction. The purpose of this work is to present more data on the oxidation of benzyl alcohol by other CoIII compounds Moreover, other aromatic substrates have been oxidized by cobaltIII acetylacetonate.
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