Zobrazeno 1 - 10
of 14
pro vyhledávání: '"O. N. Verkhozina"'
Autor:
F. A. Pokatilov, V. N. Kizhnyaev, T. V. Golobokova, L. I. Vereshchagin, A. G. Proidakov, O. N. Verkhozina, A. I. Smirnov
Publikováno v:
Chemistry of Heterocyclic Compounds. 47:456-463
Polynuclear noncondensed systems in which the azole rings are bound by urethane or carbamide fragments have been synthesized by the reaction of azole carboxylic acid azides with heterocyclic alcohols.
Autor:
E. A. Krakhotkina, F. A. Pokatilov, R. G. Zhitov, T. V. Golobokova, O. N. Verkhozina, V. N. Kizhnyaev, L. I. Vereshchagin
Publikováno v:
Polymer Science Series B. 53:317-323
Linear, star-shaped, and hyperbranched oligomeric compounds containing tetrazole cycles in the main chains are synthesized via the polycondensation (polyalkylation) of N-H unsubstituted bis(tetrazoles), tris(tetrazoles), and tetrakis(tetrazoles) with
Autor:
O. N. Verkhozina, T. L. Petrova, F. A. Pokatilov, M. V. Kazantseva, E. A. Krakhotkina, V. N. Kizhnyaev
Publikováno v:
Polymer Science Series B. 53:144-150
High-molecular-mass compounds (ionenes) containing charged imidazole and 1,2,4-triazole rings in the main chain are synthesized via the reaction of dihaloalkanes with bis(azoles) of various structures. It is shown that azole-containing ionenes can be
Publikováno v:
Chemistry of Heterocyclic Compounds. 46:206-211
Polynuclear structures containing several heterocycles of various types were synthesized by the reaction of cyanuric chloride and its mono- and dichloro derivatives with triazoles and tetrazoles in the presence of bases.
Autor:
G. V. Ratovskii, T. L. Petrova, F. A. Pokatilov, V. N. Kizhnyaev, O. V. Tyukalova, O. N. Verkhozina, L. I. Vereshchagin, A. G. Prodaikov
Publikováno v:
Russian Journal of Applied Chemistry. 82:1769-1775
Interaction of cyanuric chloride and its mono and dichloro derivatives with ammonium or sodium 4-nitro-1,2,3-triazolates and polymer-analogous transformations of tetrazole-containing polymers were used to synthesize polynuclear systems and macromolec
Publikováno v:
Chemistry of Heterocyclic Compounds. 44:1158-1163
The reaction of 5-substituted mono-and polytetrazoles with heterocyclic acid chlorides and trifluoroacetic acid anhydride gave branched polynuclear 1,3,4-oxadiazole systems.
Autor:
F. A. Pokatilov, A. G. Proidakov, S. K. Strunevich, V. N. Kizhnyaev, O. N. Verkhozina, L. I. Vereshchagin
Publikováno v:
Russian Journal of Organic Chemistry. 43:1710-1714
5-Substituted tetrazoles readily react with trifluoroacetic anhydride at 20–25°C to give the corresponding 2-substituted 5-trifluoromethyl-1,3,4-oxadiazoles, in contrast to published data according to which the title compounds are converted into 1
Autor:
Lyudmila I. Larina, Tamara I. Vakul'skaya, O. N. Verkhozina, V. A. Lopyrev, Gennadii V. Dolgushin, I. A. Titova
Publikováno v:
Chemistry of Heterocyclic Compounds. 42:1427-1434
The vicarious nucleophilic substitution of hydrogen in symmetrical and vicinal nitrotriazoles by 1,1,1-trimethylhydrazinium iodide in t-BuOK/DMSO was studied by ESR. In the ESR monitoring of the reactions the primary radical-anions of 4-nitro-2-pheny
Publikováno v:
Russian Journal of Organic Chemistry. 40:1156-1161
Cycloaddition of organic mono- and diazides to the triple bond of propargyl esters of mono- and dicarboxylic acids gave rise to polycyclic 1,2,3-triazole-substituted carboxylates. Dipropargyl dicarboxylates with diazides afforded oligomeric products
Autor:
F. A. Pokatilov, V. N. Kizhnyaev, S. K. Strunevich, O. N. Verkhozina, A. G. Proidakov, L. I. Vereshchagin
Publikováno v:
ChemInform. 39
5-Substituted tetrazoles readily react with trifluoroacetic anhydride at 20–25°C to give the corresponding 2-substituted 5-trifluoromethyl-1,3,4-oxadiazoles, in contrast to published data according to which the title compounds are converted into 1