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 Найдено в других БД:Публикации Чарушина В.Н. (3)
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Общее количество найденных документов : 14
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 1-10    11-14 
1.
Инвентарный номер: нет.
   


   
    4-Hydroxy-3-nitro-1,4-dihydrotriazolo[5,1-c][1,2,4]triazines: synthesis, antiviral activity, and electrochemical characteristics / R. A. Drokin, E. A. Fesenko, P. N. Mozharovskaia [et al.] // Russian chemical bulletin. - 2022. - Vol. 71, № 11. - P2460-2466
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: A new method for preparation of 4-hydroxy-3-nitro-1,4-dihydrotriazolo[5,1-c][1,2,4]-triazines using 1-nitro-2-morpholinoethylene and 3-diazo-1,2,4-triazoles is proposed. Antiviral activity against the Coxsackie B3 virus and electrochemical transformations of the prepared compounds are studied.

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2.
Инвентарный номер: нет.
   


   
    An efficient synthesis of push-pull fluorophores based on (2-fluoroaryl)-1,2,3-triazoles / I. A. Lavrinchenko, T. D. Moseev, Y. A. Seleznev [et al.] // Успехи синтеза и комплексообразования = Advances in synthesis and complexing : сборник тезисов шестой Международной научной конференции. - Москва, 2022. - P194
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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3.
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    Aryne-mediated transformations of 5-perfluorophenyl-substituted 3-(pyridin-2-yl)-1,2,4-triazines in the design of novel 10-(1h-1,2,3-triazol-1-yl)pyrido[1,2-a]indole fluorophores / T. D. Moseev, M. V. Varaksin, I. A. Lavrinchenko [и др.] // Tetrahedron. - 2020. - Vol. 76, № 18. - P131147
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
1,2,3-TRIAZOLES -- ARYNE-MEDIATED TRANSFORMATIONS -- CAOSAMBHWGMFEW-UHFFFAOYSA-N -- CYFQLMLVDSTHGC-UHFFFAOYSA-N -- FLUOROARENES
Аннотация: A number of novel fluorinated derivatives of the family of pyrido[1,2-a]indole fluorophores have first been synthesized via the aryne-mediated domino transformations of 5-(perfluorophenyl)-3-(pyridin-2-yl)-1,2,4-triazines. A comprehensive study of photophysical properties of the obtained polyfluoroaryl substituted derivatives, in which polyfluoroaryl, 1,2,3-triazole, and pyridoindole subunits contribute to a joint chromophore system, has shown that these compounds proved to exhibit a fluoresce with green light in acetonitrile solutions.

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4.
Инвентарный номер: нет.
   


   
    Design and synthesis of y-shaped fluorophores based on n(2)-aryl-1,2,3 triazoles / I. A. Lavrinchenko, T. D. Moseev, Y. A. Seleznev [et al.] // Успехи синтеза и комплексообразования = Advances in synthesis and complexing : сборник тезисов шестой Международной научной конференции. - Москва, 2022. - P240
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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5.
Инвентарный номер: нет.
   


   
    Design, synthesis, biological evaluation and molecular docking studies of 1,4-disubstituted 1,2,3-triazoles: peg-400:h2o mediated click reaction of fluorescent organic probes under ultrasonic irradiation / C. K. R. Reddivari, S. R. Devineni, R. R. Yellalavenkata [et al.] // Polycyclic aromatic compounds. - 2021. - Vol. 42, № 7. - P3953-3974
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ULTRASONICATION -- 123-TRIAZOLE -- ANTIOXIDANT ACTIVITY
Аннотация: The perpetual demand of medicinally significant scaffolds has prompted the synthetic chemists to identify simple and efficient routes for flawless synthesis. A PEG-400:H2O mediated highly versatile, efficacious and selective “Click reaction” of fluorescent organic Probes under ultrasonic irradiation is reported. 1,2,3-Triazole ring has also been revealed to play a crucial role in bioorthogonal methodologies, fragment-based drug design, and biomolecular mimetics. This methodology provides a rapid and efficient approach for the synthesis of 1,4-Disubstituted 1,2,3-triazoles under Copper (I)-Catalyzed Azide-Alkyne [3 + 2] Cycloaddition (CuAAC) conditions in good to excellent yields in less time. This synthetic protocol has been proven to endorse easy work-up under benign reaction conditions. The green solvent system employed has been efficaciously reused several times without any loss of its activity in an aqueous medium. All the title compounds were characterized by using elemental analysis, 1HNMR, 13CNMR, FTIR, and mass spectral data. The newly synthesized compounds were biologically evaluated for their antioxidant activity. The antioxidant activity results demonstrate that all compounds showed good to excellent antioxidant activity, particularly the compounds 5d, 8 b, 8c and 8d exhibited promising radical scavenging activity. Further, photophysical properties of the compounds were accomplished using spectrofluorimeter. By this method, compounds 5c, 5e, 5f, 8a, 8 b, 8c and 8d exhibited fluorescence in the visible region. Molecular docking studies suggested the antioxidant activity of synthesized compounds due to the inhibition of neuronal nitric oxide synthase (HnNOS).

https://doi.org/10.1080/10406638.2021.1878246
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6.
Инвентарный номер: нет.
   
   F 70


   
    Fluoroalkyl-containing lithium beta-diketonates in the synthesis of 1,2,4-triazolo[1,5-a]pyrimidines [Electronic resource] / O. A. Kuznetsova, V. I. Filyakova, K. I. Pashkevich, E. N. Ulomskii, P. V. Plekhanov, G. L. Rusinov, M. I. Kodess, V. L. Rusinov // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2003. - Vol. 52, № 5. - P1190-1194
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Cyclocondensation of fluorine-containing lithium beta-diketonates with 3-amino-1,2,4-triazoles afforded 7-fluoromethyl-1,2,4-triazolo[1,5-a]pyrimidines

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2003, 52 (5), 1190.pdf
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7.
Инвентарный номер: нет.
   
   N 91


   
    Nucleophilic ring-opening of the azole and azine moieties in 6-nitro-1,2,4-triazolo[1,5-a]pyrimidin-7-ones [Electronic resource] / E. N. Ulomskii, V. V. Voronin, V. L. Rusinov, O. N. Chupakhin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2001. - Vol. 50, № 4. - P682-688
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The effects of the nature of the nucleophile and the structure of 6-nitrotriazolo[1,5-a]pyrimidinones on the direction of the ring opening were investigated. The triazole ring is opened under the action of strong bases, such as alkoxides or alkalis, to form 2-cyanoaminopyrimidinones and then 2-aminopyrimidinones. The results of the reactions with N-nucleophiles depend on the accessibility of position 5 of the heterocycle. Thus, sterically hindered secondary amines react with 5-methyltriazolopyrimidinones to give 2-guanidinopyrimidinones and then 2-aminopyrimidinones. In the absence of a substituent at position 5, the azine ring is opened to form 4-alkyl-3-amino-1,2,4-triazoles and 3-amino-2-nitroacrylamides. Under the action of primary amines, only the pyrimidine fragment is cleaved

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2001, 50 (4), 682.pdf
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8.
Инвентарный номер: нет.
   
   R 30


   
    Reactions of 2-arylhydrazonoacetamidoximes with orthoesters [Electronic resource] / N. P. Belskaia, A. V. Koksharov, S. G. Lesogorova, P. A. Slepukhin, V. A. Bakulev // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2011. - Vol.60, №5. - С. 889-895. - Bibliogr. : p. 895 (11 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
HYDRAZONES -- AMIDOXIMES -- ORTHOESTERS
Аннотация: The reactions of 2 arylhydrazono 2 carbamoylacetamidoximes with orthoesters afford either 3 arylhydrazono 1,2,4 oxadiazoles or 1,2,3 triazoles, depending on the reactant structure.

\\\\expert2\\NBO\\Russian Chemical Bulletin\\2011, 60 (5), 869-875.pdf
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9.
Инвентарный номер: нет.
   
   R 30


   
    Reactions of β-azolylenamines with sulfonyl azides as an approach to N-unsubstituted 1,2,3-triazoles and ethene-1,2-diamines [Electronic resource] / I. Efimov, V. A. Bakulev, N. Beliaev, M. A. Ezhikova, W. Dehaen, P. A. Slepukhin // European Journal of Organic Chemistry. - 2014. - Vol. 2014, №17. - С. 3684-3689. - Bibliogr. : p. 3689 (49 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
AZIDES -- CYCLOADDITION -- NITROGEN HETEROCYCLES
Аннотация: The reactions of β-azolylenamines 1 with sulfonyl azides 2 in acetonitrile furnished 1H-4-(azol-5-yl)-1,2,3-triazoles 3 in yields of 52-93%. β-Benzoylenaminones and β-nitroenamine of type 1 also reacted with tosyl azide to form the same type of products 3, proving the generality and efficiency of the method for the synthesis of N-unsubstituted 1,2,3-triazoles. On the other hand, the reactions of 3-(1-aryl-1,2,3-triazol-5-yl)enamines with tosyl azide in the absence of a solvent afforded a mixture of (E)-1-dimethylamino-2-tosylaminoethenes 5 and N,N-dimethyl-N′- tosylformamidine 6 in yields of 40-50 and 20%, respectively. The formation of a variety of compounds from the reactions of enamines 1 with sulfonyl azides 2 is rationalized by the various possible transformations of the intermediate 5-dimethylamino-1,2,3-triazolines

\\\\expert2\\nbo\\European Journal of Organic Chemistry\\2014, № 17. p.3684.pdf
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10.
Инвентарный номер: нет.
   
   R 30


   
    Reactivity of 1,2,3-triazoles towards sulfonyl chlorides. A novel approach to 1-and 2-sulfonyl-4-azolyl-1,2,3-triazoles / T. Beryozkina, I. Efimov, W. M. F. Fabian, N. Beliaev, P. A. Slepukhin, M. L. Isenov, W. Dehaen, G. Lubec, O. S. Eltsov, Z. Fan // Tetrahedron. - 2015. - Vol. 71, № 36. - С. 6189-6195
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
1,2,3-TRIAZOLES -- SULFONYL CHLORIDES -- 2-SULFONYL-4-AZOLYL-1,2,3-TRIAZOLES

\\\\expert2\\NBO\\Tetrahedron\\2015, v. 71 , p. 6189.pdf
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