Journal ArticleDOI
Ready reduction of some nitroxide free radicals with ascorbic acid
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TLDR
In this paper, the reduction of some nitroxide free radicals to the corresponding hydroxylamines is reported and a method for their quantitative determination is also presented, but the method is restricted to a single class of free radicals.Abstract:
The reduction of some nitroxide free radicals to the corresponding hydroxylamines is reported and, also, a method for their quantitative determination.read more
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A Versatile and Highly Selective Hypervalent Iodine (III)/2,2,6,6-Tetramethyl-1-piperidinyloxyl-Mediated Oxidation of Alcohols to Carbonyl Compounds
TL;DR: Catalytic amounts of 2,2,6,6-tetramethyl-1-piperidinyloxyl (TEMPO) are used in combination with [bis(acetoxy)iodo]benzene (BAIB) as a stoichiometric oxidant in the conversion of primary and secondary alcohols to carbonyl compounds.
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Synthetic applications of nonmetal catalysts for homogeneous oxidations.
TL;DR: This review focuses on five nonmetal catalytic systems which have attained prominence in the oxidation field in view of their efficacy and their potential for future development; stoichiometric cases have been mentioned to provide overview and scope.
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Catalytic oxidations mediated by metal ions and nitroxyl radicals
TL;DR: The use of nitroxyl radicals, alone or in combination with transition metals, as catalysts in oxidation processes is reviewed, from both a synthetic and a mechanistic viewpoint in this article.
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Cellular metabolism of water-soluble nitroxides: effect on rate of reduction of cell/nitroxide ratio, oxygen concentrations and permeability of nitroxides.
TL;DR: A systematic study of the distribution and metabolism of nitroxide in biological systems provides a reasonably coherent picture of some aspects of the interactions between nitroxides and cells.
Journal ArticleDOI
Low-temperature dynamic nuclear polarization at 9.4 T with a 30 mW microwave source.
TL;DR: In experiments on frozen glycerol/water doped with nitroxide radicals, DNP signal enhancements up to a factor of 80 are observed (relative to (1)H NMR signals with thermal equilibrium spin polarization), and the largest sensitivity enhancements are observed with a new triradical dopant, DOTOPA-TEMPO.