Zobrazeno 1 - 10
of 25
pro vyhledávání: '"N. I. Belaya"'
Publikováno v:
Russian Journal of General Chemistry. 92:1408-1419
Publikováno v:
Kinetics and Catalysis. 62:712-723
Publikováno v:
Kinetics and Catalysis. 61:839-845
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 met
Publikováno v:
Russian Journal of General Chemistry. 90:1823-1830
Using the chronovoltammetric method, it has been shown that the reduction of oxygen on a mercury electrode in the presence of phenolcarboxylic acids in an acidic medium occurs as reversible electrode process followed by rate-limiting chemical reactio
Publikováno v:
Kinetics and Catalysis. 61:360-368
A relationship between the antiradical activity of flavonoids and the molecular descriptors related to the mechanism of their antiradical action was determined by single-variable linear regression analysis in the form of a semiempirical single-variab
Publikováno v:
Russian Journal of General Chemistry. 90:23-31
Possible electron transfer mechanisms have been studied for the reaction of 2,2′-diphenyl-1-picrylhydrazyl with a number of natural hydroxybenzenes in aqueous buffer solutions at pH = 2–9 using the methods of spectrophotometry and quantum chemica
Autor:
O. M. Zarechnaya, O. A. Gorban, A. V. Belyi, Igor N. Shcherbakov, N. I. Belaya, A. I. Pomeshchenko
Publikováno v:
Kinetics and Catalysis. 60:28-36
Fourier-transform IR and NMR spectroscopy are used to show that, in the reaction with 2,2'‑diphenyl-1-picrylhydrazyl radical, the secondary products of natural phenol conversion are dimeric compounds formed by recombination of phenoxyl radicals. Ac
Publikováno v:
Russian Journal of General Chemistry. 88:1351-1362
Experimentaly and theoretically, using the method of density functional theory, the structure of 2,2'-diphenyl-1-picrylhydrazyl radical and the mechanism of its reaction with di- and trihydroxybenzenes in non-ionizing media have been investigated. It
Publikováno v:
Pharmaceutical Chemistry Journal. 51:230-234
An iodometric method for determining the antiradical activity (ARA) of dihydroxybenzenes in the reaction with 2,2′-azobis-(2-amidinopropane) (AAP) peroxyl radicals (rOO• ) in conditions close to those obtaining in biological systems was developed
Autor:
V. M. Mikhalchuk, N. I. Belaya, A. V. Belyj, V. S. Doroshkevich, O. M. Zarechnaya, I. N. Scherbakov
Publikováno v:
Russian Journal of General Chemistry. 87:690-697
Mechanisms of the reaction of di- and trihydroxybenzenes with 2,2′-diphenyl-1-picrylhydrazyl (stable radical) in aprotic media of different polarity have been elucidated by experimental and quantum-chemical methods. Kinetic, stoichiometric, and act