Статья
2017

The Electrochemical Evaluation of the Antioxidant Activity of Substituted Tetraphenylporphyrins


M. V. Tesakova M. V. Tesakova , V. I. Parfenyuk V. I. Parfenyuk
Российский электрохимический журнал
https://doi.org/10.1134/S1023193517110155
Abstract / Full Text

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.

Author information
  • Krestov Institute of Solution Chemistry, Russian Academy of Sciences, Ivanovo, 153045, Russia

    M. V. Tesakova & V. I. Parfenyuk

  • Kostroma State University, Kostroma, 156005, Russia

    V. I. Parfenyuk

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