The Experts below are selected from a list of 1509 Experts worldwide ranked by ideXlab platform
O. M. Panasenko - One of the best experts on this subject based on the ideXlab platform.
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A comparative spin trapping study of the interaction of hypobromous and hypochlorous acids with tert-butyl hydroperoxide
Biophysics, 2007Co-Authors: A. V. Chekanov, A. N. Osipov, Yu. A. Vladimirov, V. I. Sergienko, O. M. PanasenkoAbstract:Hypochlorite (HOCl/OCl^−) and Hypobromite (HOBr/OBr^−) are shown to react with tert -butyl hydroperoxide with close rate constants (10.8 and 8.9 M^−1 s^−1, respectively). Using a spin trap α-(4-pyridyl-1-oxide)- N-tert -butyl nitrone, both reactions are shown to proceed through decomposition of the hydroperoxide yielding butylperoxyl [˙OOC(CH_3)_3] and butoxyl [˙OC(CH_3)_3] radicals in a ratio depending on the hydroperoxide concentration. Thus, like hypochlorite, Hypobromite can generate free radicals in reactions with organic hydroperoxides, which can be important for intensification of free-radical processes, e.g., lipid peroxidation at the chain branching stage.
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A comparative spin trapping study of hypobromous and hypochlorous acids interaction with tert-butyl hydroperoxide
Biofizika, 2007Co-Authors: A. V. Chekanov, A. N. Osipov, Iu A Vladimirov, O. M. PanasenkoAbstract:We have demonstrated that hypochlorite (HOCI/OCl-) and Hypobromite (HOBr/OBr-) can react with tert-butyl hydroperoxide with close rate constants (k(HOCl) = 10,8 M(-1) x s(1); k(HOBr) = 8,9 M(-1) x (s(-1)). By means of the spin trap 4-pyridyl-1-oxide-N-tert-butyl nitron we have found that both reactions proceed through decomposition of tert-butyl hydroperoxide and generation of tert-butyl peroxyl (OOC(CH3)3) and tert-butoxyl (OC(CH3)3) radicals, the ratio of their the concentrations being dependent on the concentration of tert-butyl hydroperoxide. Thus, Hypobromite, similar to hypochlorite, is a precursor of free radicals produced in the reaction with organic hydroperoxides. This reaction can be of great importance in the intensification of free radical processes, namely, in lipid peroxidation at the stage of chain branching.
A. V. Chekanov - One of the best experts on this subject based on the ideXlab platform.
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A comparative spin trapping study of the interaction of hypobromous and hypochlorous acids with tert-butyl hydroperoxide
Biophysics, 2007Co-Authors: A. V. Chekanov, A. N. Osipov, Yu. A. Vladimirov, V. I. Sergienko, O. M. PanasenkoAbstract:Hypochlorite (HOCl/OCl^−) and Hypobromite (HOBr/OBr^−) are shown to react with tert -butyl hydroperoxide with close rate constants (10.8 and 8.9 M^−1 s^−1, respectively). Using a spin trap α-(4-pyridyl-1-oxide)- N-tert -butyl nitrone, both reactions are shown to proceed through decomposition of the hydroperoxide yielding butylperoxyl [˙OOC(CH_3)_3] and butoxyl [˙OC(CH_3)_3] radicals in a ratio depending on the hydroperoxide concentration. Thus, like hypochlorite, Hypobromite can generate free radicals in reactions with organic hydroperoxides, which can be important for intensification of free-radical processes, e.g., lipid peroxidation at the chain branching stage.
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A comparative spin trapping study of hypobromous and hypochlorous acids interaction with tert-butyl hydroperoxide
Biofizika, 2007Co-Authors: A. V. Chekanov, A. N. Osipov, Iu A Vladimirov, O. M. PanasenkoAbstract:We have demonstrated that hypochlorite (HOCI/OCl-) and Hypobromite (HOBr/OBr-) can react with tert-butyl hydroperoxide with close rate constants (k(HOCl) = 10,8 M(-1) x s(1); k(HOBr) = 8,9 M(-1) x (s(-1)). By means of the spin trap 4-pyridyl-1-oxide-N-tert-butyl nitron we have found that both reactions proceed through decomposition of tert-butyl hydroperoxide and generation of tert-butyl peroxyl (OOC(CH3)3) and tert-butoxyl (OC(CH3)3) radicals, the ratio of their the concentrations being dependent on the concentration of tert-butyl hydroperoxide. Thus, Hypobromite, similar to hypochlorite, is a precursor of free radicals produced in the reaction with organic hydroperoxides. This reaction can be of great importance in the intensification of free radical processes, namely, in lipid peroxidation at the stage of chain branching.
A. N. Osipov - One of the best experts on this subject based on the ideXlab platform.
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A comparative spin trapping study of the interaction of hypobromous and hypochlorous acids with tert-butyl hydroperoxide
Biophysics, 2007Co-Authors: A. V. Chekanov, A. N. Osipov, Yu. A. Vladimirov, V. I. Sergienko, O. M. PanasenkoAbstract:Hypochlorite (HOCl/OCl^−) and Hypobromite (HOBr/OBr^−) are shown to react with tert -butyl hydroperoxide with close rate constants (10.8 and 8.9 M^−1 s^−1, respectively). Using a spin trap α-(4-pyridyl-1-oxide)- N-tert -butyl nitrone, both reactions are shown to proceed through decomposition of the hydroperoxide yielding butylperoxyl [˙OOC(CH_3)_3] and butoxyl [˙OC(CH_3)_3] radicals in a ratio depending on the hydroperoxide concentration. Thus, like hypochlorite, Hypobromite can generate free radicals in reactions with organic hydroperoxides, which can be important for intensification of free-radical processes, e.g., lipid peroxidation at the chain branching stage.
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A comparative spin trapping study of hypobromous and hypochlorous acids interaction with tert-butyl hydroperoxide
Biofizika, 2007Co-Authors: A. V. Chekanov, A. N. Osipov, Iu A Vladimirov, O. M. PanasenkoAbstract:We have demonstrated that hypochlorite (HOCI/OCl-) and Hypobromite (HOBr/OBr-) can react with tert-butyl hydroperoxide with close rate constants (k(HOCl) = 10,8 M(-1) x s(1); k(HOBr) = 8,9 M(-1) x (s(-1)). By means of the spin trap 4-pyridyl-1-oxide-N-tert-butyl nitron we have found that both reactions proceed through decomposition of tert-butyl hydroperoxide and generation of tert-butyl peroxyl (OOC(CH3)3) and tert-butoxyl (OC(CH3)3) radicals, the ratio of their the concentrations being dependent on the concentration of tert-butyl hydroperoxide. Thus, Hypobromite, similar to hypochlorite, is a precursor of free radicals produced in the reaction with organic hydroperoxides. This reaction can be of great importance in the intensification of free radical processes, namely, in lipid peroxidation at the stage of chain branching.
Yu. A. Vladimirov - One of the best experts on this subject based on the ideXlab platform.
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A comparative spin trapping study of the interaction of hypobromous and hypochlorous acids with tert-butyl hydroperoxide
Biophysics, 2007Co-Authors: A. V. Chekanov, A. N. Osipov, Yu. A. Vladimirov, V. I. Sergienko, O. M. PanasenkoAbstract:Hypochlorite (HOCl/OCl^−) and Hypobromite (HOBr/OBr^−) are shown to react with tert -butyl hydroperoxide with close rate constants (10.8 and 8.9 M^−1 s^−1, respectively). Using a spin trap α-(4-pyridyl-1-oxide)- N-tert -butyl nitrone, both reactions are shown to proceed through decomposition of the hydroperoxide yielding butylperoxyl [˙OOC(CH_3)_3] and butoxyl [˙OC(CH_3)_3] radicals in a ratio depending on the hydroperoxide concentration. Thus, like hypochlorite, Hypobromite can generate free radicals in reactions with organic hydroperoxides, which can be important for intensification of free-radical processes, e.g., lipid peroxidation at the chain branching stage.
V. I. Sergienko - One of the best experts on this subject based on the ideXlab platform.
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A comparative spin trapping study of the interaction of hypobromous and hypochlorous acids with tert-butyl hydroperoxide
Biophysics, 2007Co-Authors: A. V. Chekanov, A. N. Osipov, Yu. A. Vladimirov, V. I. Sergienko, O. M. PanasenkoAbstract:Hypochlorite (HOCl/OCl^−) and Hypobromite (HOBr/OBr^−) are shown to react with tert -butyl hydroperoxide with close rate constants (10.8 and 8.9 M^−1 s^−1, respectively). Using a spin trap α-(4-pyridyl-1-oxide)- N-tert -butyl nitrone, both reactions are shown to proceed through decomposition of the hydroperoxide yielding butylperoxyl [˙OOC(CH_3)_3] and butoxyl [˙OC(CH_3)_3] radicals in a ratio depending on the hydroperoxide concentration. Thus, like hypochlorite, Hypobromite can generate free radicals in reactions with organic hydroperoxides, which can be important for intensification of free-radical processes, e.g., lipid peroxidation at the chain branching stage.