Mechanism of the Antiradical Action of Natural Phenylpropanoids in Nonionizing Polar Media

Autor:	N. I. Belaya, A. A. Davydova, A. V. Belyi
Rok vydání:	2020
Předmět:	Proton 010405 organic chemistry Chemistry Kinetics General Chemistry 010402 general chemistry Photochemistry 01 natural sciences Catalysis 0104 chemical sciences Computer Science Applications Electron transfer Deuterium Modeling and Simulation Kinetic isotope effect Polar Stoichiometry
Zdroj:	Kinetics and Catalysis. 61:839-845
ISSN:	1608-3210 0023-1584
Popis:	The kinetics and mechanisms of the reactions of some natural phenylpropanoids from the group of hydroxycinnamic acids with the stable radical 2,2'-diphenyl-1-picrylhydrazyl in polar nonionizing media were studied by kinetic and spectrophotometric methods. The kinetic and stoichiometric parameters of the reaction were determined. The magnitude of the deuterium isotope effect shows that in polar solvents with low ionizing ability (dimethylsulfoxide), the reaction proceeds by the electron transfer mechanism followed by proton transfer. A similar mechanism of the antiradical action of hydroxycinnamic acids is possible in highly acidic aqueous media.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6d1073921afdeae71bda05ccc368f400 https://doi.org/10.1134/s0023158420060026 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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