Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Rifkat F. Talipov"'
Autor:
Z. R. Zileeva, R. R. Sayakhov, V. A. Vydrina, G. Yu. Ishmuratov, Rifkat F. Talipov, Marina P. Yakovleva
Publikováno v:
Chemistry of Natural Compounds. 57:706-711
A new synthesis of 3-oxo-28-hydroxylup-20(29)-ene from the available natural triterpenoid betulin was developed. α,ω-Diketodiesters were prepared for the first time by different methods from 3-oxo-28-hydroxylup-20(29)-ene and a series of natural di
Autor:
Iskander Sh. Yakupov, I. V. Vakulin, Nadegda V. Belkina, Gumer U. Ishmuratov, Elvira R. Latipova, Rifkat F. Talipov, Anna A. Rafikova
Publikováno v:
Journal of the Chinese Chemical Society. 68:551-556
Publikováno v:
Kinetics and Catalysis. 60:320-324
Using the dependence of the activation energy of 4-alkyl-1,3-dioxane formation on the pore diameter of zeolites, the catalytic activity of the latter in the Prins reaction was theoretically explained. The stabilization of a prereaction π-complex in
Publikováno v:
Russian Journal of Organic Chemistry. 55:325-329
N-Hydroxy-6-methyluracil-5-carboximidoyl chloride was synthesized for the first time, and its halogenation and reactions with amines (imidazole, aniline) were studied. The reaction of the title compound with sodium azide gave the corresponding N-hydr
Autor:
Valentina А. Gorskikh, Grygoriy A. Ovchinnikov, Ilyana I. Fassalovа, Rifkat F. Talipov, Vadim S. Тukhvatshin
Publikováno v:
IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENIY KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA. 61:81-86
In this paper we studied the kinetics of adsorption of 4,4-dimethyl-1,3-dioxane by synthetic zeolites from aqueous solutions in the presence of phosphoric acid. Kinetic mechanism of DMD adsorption from aqueous solutions by synthetic zeolites were con
Publikováno v:
Microporous and Mesoporous Materials. 270:30-33
We have theoretically studied the possibility of change stage of formation of new materials by using principles of molecular imprinting on the choice of compliance parameters of transition states (TS) to the parameters of existing porous materials. G
Publikováno v:
Russian Journal of Organic Chemistry. 54:1851-1853
Study of the mechanism of formation of 1,3-oxazinane in the reaction of α-methylstyrene with formaldehyde and amines in aqueous medium has shown that 3,6-dimethyl-6-phenyl-1,3-oxazinane is formed as a result of transformations of 4-methyl-4-phenyl-1
Autor:
G. Yu. Ishmuratov, R. R. Muslukhov, Rifkat F. Talipov, V. S. Tukhvatshin, A. V. Allagulova, E. R. Latypova, Marina P. Yakovleva
Publikováno v:
Chemistry of Natural Compounds. 49:864-871
Thiylation of (R)-4-menthen-3-one and its derivatives was studied. New sulfides and sulfoxides of the menthane series were synthesized.
Publikováno v:
Reaction Kinetics, Mechanisms and Catalysis. 110:41-52
Some features of adding a formaldehyde dimer to alkenes by the Prins reaction with the formation of oxygen-containing heterocycles are studied at the MP2(fc)/6-31G(d) computational level. The structure of the transition states and key intermediates a
Publikováno v:
Reaction Kinetics, Mechanisms and Catalysis. 109:301-313
The formation mechanism of hydrogenated furans by coupling between terminal alkenes and aldehydes in trifluoroacetic acid medium were investigated by ab initio calculations, the main attention was focused on the study of the rate controlling step. Tw