The Electrochemical Evaluation of the Antioxidant Activity of Substituted Tetraphenylporphyrins
- Authors: Tesakova M.V.1, Parfenyuk V.I.1,2
-
Affiliations:
- Krestov Institute of Solution Chemistry
- Kostroma State University
- Issue: Vol 53, No 11 (2017)
- Pages: 1281-1285
- Section: Short Communications
- URL: https://journals.rcsi.science/1023-1935/article/view/189130
- DOI: https://doi.org/10.1134/S1023193517110155
- ID: 189130
Cite item
Abstract
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.
About the authors
M. V. Tesakova
Krestov Institute of Solution Chemistry
Author for correspondence.
Email: mvt@isc-ras.ru
Russian Federation, Ivanovo, 153045
V. I. Parfenyuk
Krestov Institute of Solution Chemistry; Kostroma State University
Email: mvt@isc-ras.ru
Russian Federation, Ivanovo, 153045; Kostroma, 156005