The Electrochemical Evaluation of the Antioxidant Activity of Substituted Tetraphenylporphyrins
- Autores: Tesakova M.1, Parfenyuk V.1,2
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Afiliações:
- Krestov Institute of Solution Chemistry
- Kostroma State University
- Edição: Volume 53, Nº 11 (2017)
- Páginas: 1281-1285
- Seção: Short Communications
- URL: https://journals.rcsi.science/1023-1935/article/view/189130
- DOI: https://doi.org/10.1134/S1023193517110155
- ID: 189130
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Resumo
Oxidative–reductive and antioxidant properties of 5,10,15,20-tetrakis(4-hydroxyphenyl)porphyrin, 5,10,15,20-tetrakis(4-aminophenyl)porphyrin, and 5,10,15,20-tetrakis(4-pentoxyphenyl)porphyrin in their reaction with the 2,2-diphenyl-1-picrylhydrazile free radical are studied. Two of the three abovelisted compounds, namely, 5,10,15,20-tetrakis(4-hydroxyphenyl)porphyrin and 5,10,15,20-tetrakis(4-aminophenyl) porphyrin, were found to possess antioxidant activity, the former’s antioxidant activity being higher, while 5,10,15,20-tetrakis(4-pentoxyphenyl)porphyrin showed no antioxidant properties. A probable mechanism of antioxidant activity of the studied porphyrins involves hydrogen homolytic detachment from functional substituent in phenyl ring and the hydrogen radical interaction with 2,2-diphenyl-1-picrylhydrazile.
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Sobre autores
M. Tesakova
Krestov Institute of Solution Chemistry
Autor responsável pela correspondência
Email: mvt@isc-ras.ru
Rússia, Ivanovo, 153045
V. Parfenyuk
Krestov Institute of Solution Chemistry; Kostroma State University
Email: mvt@isc-ras.ru
Rússia, Ivanovo, 153045; Kostroma, 156005