Zobrazeno 1 - 10
of 140
pro vyhledávání: '"Bogdan I. Ugrak"'
Autor:
Firudin I. Guseinov, Sevim Türktekin Çelikesir, Mehmet Akkurt, Viacheslav O. Ovsyannikov, Bogdan I. Ugrak, Oksana M. Lavrova, Aida I. Samigullina, Ajaya Bhattarai
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 80, Iss 6, Pp 582-585 (2024)
In the title compound, C6H4BrF3N4O2, the oxadiazole ring is essentially planar with a maximum deviation of 0.003 (2) Å. In the crystal, molecular pairs are connected by N—H...N hydrogen bonds, forming dimers with an R22(8) motif. The dimers are li
Externí odkaz:
https://doaj.org/article/d169788b212f49129e56d5555c8c35ae
Autor:
Firudin I. Guseinov, Konstantin I. Kobrakov, Bogdan I. Ugrak, Zeliha Atioğlu, Mehmet Akkurt, Ajaya Bhattarai
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 78, Iss 1, Pp 12-17 (2022)
The bicyclic imidazo[1,2-a]pyridine core in the molecule of the title compound, C10H7F3N2O, is planar within 0.004 (1) Å. In the crystal, the molecules are linked by pairs of C—H...N and C—H...O hydrogen bonds, forming strips. These strips are c
Externí odkaz:
https://doaj.org/article/b81be5f8fc7746f1bb129ee706452836
Autor:
Boris V. Lyalin, Vera L. Sigacheva, Anastasia S. Kudinova, Bogdan I. Ugrak, Vladimir A. Petrosyan, Vladimir A. Kokorekin
Publikováno v:
Chemistry of Heterocyclic Compounds. 58:1-6
Publikováno v:
Russian Chemical Bulletin. 70:164-170
The influence of the structures of N-alkyl-3-aminopyrazoles on their transformation into azopyrazoles on treatment with sodium hypohalogenites was studied. The reaction of 3-aminopyrazoles unsubstituted at position 4 containing donor substituents wit
Autor:
Bogdan I. Ugrak, Tatyana Ya. Dutova, Anatoliy M. Shestopalov, Vladimir N. Nesterov, A. A. Zubarev, Lyudmila A. Rodinovskaya
Publikováno v:
Journal of Heterocyclic Chemistry. 57:913-922
Autor:
Firudin I, Guseinov, Konstantin I, Kobrakov, Bogdan I, Ugrak, Zeliha, Atioğlu, Mehmet, Akkurt, Ajaya, Bhattarai
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications
In the crystal, the molecules are linked by C—H⋯N and C—H⋯O hydrogen bonds into strips, which are connected by F⋯F contacts into layers.
The bicyclic imidazo[1,2-a]pyridine core in the molecule of the title compound, C10H7F3N2O, is
The bicyclic imidazo[1,2-a]pyridine core in the molecule of the title compound, C10H7F3N2O, is
Autor:
Konstantin I. Kobrakov, Bogdan I. Ugrak, Leonid M. Kustov, Elena V. Shuvalova, Vladislav M. Malinnikov, Kamran T. Mahmudov, Yulia V. Nelyubina, Kirill N. Lialin, Firudin I. Guseinov
Publikováno v:
Dyes and Pigments. 197:109898
A series of 2-(4-substituted benzoyl)thiazolo[3,2-a]pyridin-4-ium bromides [−OCH3 (1), –H (2), –F (3), −Cl (4)] was obtained by the heterocyclization reaction of the corresponding 2-bromo-1-(4-substituted phenyl)-3,3-diethoxypropan-1-ones wit
Autor:
Yury V. Tomilov, Aleksandr N. Lobov, Vladimir A. Dokichev, Natalya N. Gibadullina, L. F. Zainullina, Yulia V. Vakhitova, Bogdan I. Ugrak, D. R. Latypova, Vener Absatarovich Vakhitov, Diana Valievna Khasanova
Publikováno v:
Journal of Fluorine Chemistry. 211:94-99
A series of novel difluoroacetyl hexahydropyrimidine derivatives have been synthesized by reactions of ethyl 4,4-difluoroacetoacetate, 1,1-difluoropentane-2,4-dione and 1,1,5,5-tetrafluoropentane-2,4-dione with an aqueous formaldehyde solution and am
Autor:
Alexander A. Pavlov, Vladislav V. Nikol'skiy, Svyatoslav A. Shevelev, Maxim A. Bastrakov, Bogdan I. Ugrak, Alexey M. Starosotnikov, Vadim V. Kachala
Publikováno v:
ChemistrySelect. 3:1230-1233
Autor:
Mikhail D. Dutov, Tatyana K. Shkineva, Kyrill Yu. Suponitsky, Bogdan I. Ugrak, Irina A. Vatsadze, Olga V. Serushkina, Igor L. Dalinger
Publikováno v:
Chemistry of Heterocyclic Compounds. 51:695-703
A general method has been developed for the synthesis of 1-pyrazolyl-1Н-tetrazoles, and N-nitration of these compounds was studied. The structural features affecting the direction of nitration were identified. A series of 1-(N-nitropyrazolyl)-1Н-te