Electrochemical transformations and anti/prooxidant activity of sterically hindered <Emphasis Type="Italic">o</Emphasis>-benzoquinones期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Electrochemical transformations and anti/prooxidant activity of sterically hindered <Emphasis Type="Italic">o</Emphasis>-benzoquinones

Authors:	Email author" target="_blank">I?V?Smolyaninov Email author V?V?Kuzmin M?V?Arsenyev S?A?Smolyaninova A?I?Poddel′sky N?T?Berberova

Institution:	1.Astrakhan State Technical University,Astrakhan,Russian Federation;2.Southern Scientific Center,Russian Academy of Sciences,Rostov-on-Don,Russian Federation;3.G. A. Razuvaev Institute of Organometallic Chemistry,Russian Academy of Sciences,Nizhny Novgorod,Russian Federation;4.N. I. Lobachevsky National Research Nizhny Novgorod State University,Nizhny Novgorod,Russian Federation

Abstract:	The electrochemical properties of a series of sterically hindered o-benzoquinones in aprotic solvents were examined. The reaction of O₂ and KO₂ with o-benzoquinones and electrogenerated o-semiquinone radical anions was studied. The formation of o-semiquinone radical anions in the reactions of KO₂ with the studied o-quinones was detected using UV-visible and ESR spectroscopy. The influence of the test compounds on lipid peroxidation was considered at the molecular and tissue levels in vitro. In the most cases, o-quinones exhibit antioxidant activity, which varies depending on the type of lipid substrate.

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