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1.

Вид документа : Статья из журнала
Шифр издания : 24/T 82
Автор(ы) : Musikhina A. A., Utepova I. A., Chupakhin O. N., Charushin V. N., Slepukhin P. A.
Заглавие : Transition metal-free regioselective cross-coupling of azine N-oxides with cymantrenyl lithium
Место публикации : Journal of organometallic chemistry. - 2018. - Vol. 870 . - С. 32-37
ББК : 24
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): azine-n-oxides--cymantrene--c-c coupling--nucleophile
Аннотация: The facile C–C coupling reaction of activated forms of azaaromatics (azine-N-oxides) with cymantrenyl lithium, as a nucleophile, has first been carried out. It has been established that aromatization of intermediate adducts can be realized through either oxidative or eliminative pathways, depending on the structure of the starting azine N-oxide. In particular, the dihydroazinyl intermediates, bearing the additional N(4)-atom relative to the N-oxide group, proved to undergo aromatization through the eliminative pathway. The X-ray studies of 3,6-diphenyl-1,2,4-triazine-5-yl-cymantrene have revealed that it is crystallized in both orthorhombic and monoclinic forms.
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2.

Вид документа : Статья из журнала
Шифр издания : 54/T 82
Автор(ы) : Verbitskiy E. V., Slepukhin P. A., Rusinov G. L., Charushin V. N.
Заглавие : Transformations of C-adducts of 1,4-diazinium salts with dicarbonyl compounds into polycyclic systems [Electronic resource]
Место публикации : Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2008. - Vol. 57, № 3. - С. 652-656
Систем. требования: http://www.springerlink.com/content/b431270360647577/fulltext.pdf
Примечания : 26.10.2011
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: C-Adducts of 5-(het)aryl-2,3-dicyano-1-pyrazinium salts containing a residue of a 1,3-dicarbonyl compound at position 6 can be involved in the cyclization with hydrazine hydrate giving rise to pyrazino[2,3-c]pyridazines along with the expected pyrazole derivatives. The reactions of the same ?H-adducts with hydroxylamine unexpectedly afforded triazacyclopenta[a]indene derivatives. The crystallographic data on the three-dimensional structures of new polycyclic compounds were obtained
\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2008, 57 (3), 652.pdf
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3.

Вид документа : Статья из журнала
Шифр издания : 54/T 34
Автор(ы) : Fedin M., Zhilina E. F., Chizhov D. L., Charushin V. N.
Заглавие : Temperature-dependent zero-field splitting in a copper(ii) dimer studied by EPR
Место публикации : Dalton Transactions. - 2013. - Vol. 42, №13. - С. 4513-4521
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): magnetostructural correlations--temperature dependent--magnetic susceptibility
Аннотация: We report on the synthesis and temperature-dependent magnetic properties observed in an exchange-coupled copper(ii) dimer using X/Q-band Electron Paramagnetic Resonance (EPR) spectroscopy (9/34 GHz). It has been found that the zero-field splitting (D) in the dimer changes gradually by a factor close to two in the temperature range from T = 50 to 300 K. X-ray diffraction data show that this dimer consists of two five-coordinated copper ions, one of which has a highly asymmetric geometry intermediate between square pyramid and trigonal bipyramid. The copper-copper distance in the dimer is temperature-independent, whereas the degree of trigonality in an asymmetric unit decreases as the temperature is lowered. Therefore we suppose that the observed dependence D(T) originates from the interplay of different exchange interaction pathways driven by these thermal changes. Magnetic susceptibility measurements reveal weak ferromagnetic interactions, whose anisotropic parts should indeed be very sensitive to the subtle changes in the geometry and may result in apparent D(T). Apart from being a very unusual example of magneto-structural correlations, this and similar dimeric systems can be considered as an interesting type of new materials exhibiting strongly temperature-dependent magnetic p
\\\\expert2\\nbo\\Dalton Transactions\\2013, v.42, p.4513.pdf
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4.

Вид документа : Статья из журнала
Шифр издания : 54/S 98
Автор(ы) : Verbitskiy E. V., Schepochkin A. V., Makarova N. I., Dorogan I. V., Metelitsa A. V., Minkin V. I., Kozyukhin S., Emets V. V., Grinberg V., Chupakhin O. N., Rusinov G. L., Charushin V. N.
Заглавие : Synthesis, Photophysical and Redox Properties of the D-pi-A Type Pyrimidine Dyes Bearing the 9-Phenyl-9H-Carbazole Moiety [Электронный ресурс]
Место публикации : Journal of Fluorescence. - 2015. - Vol. 25, № 3. - С. 763-775
Систем. требования: http://apps.webofknowledge.com/
Примечания : Bibliogr. : p. 774-775 (51 ref.). - 18.01.2016
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): pyrimidines--carbazole--dye-sensitized solar cells
Аннотация: Novel donor-pi-acceptor dyes bearing the pyrimidine unit as an electron-withdrawing group have been synthesized by using combination of two processes, based on the microwave-assisted Suzuki cross-coupling reaction and nucleophilic aromatic substitution of hydrogen. Spectral properties of the obtained dyes in six aprotic solvents of various polarities have been studied by ultraviolet-visible and fluorescence spectroscopy. In contrast to the absorption spectra, fluorescence emission spectra displayed a strong dependence from their solvent polarities. The nature of the observed long wavelength maxima has been elucidated by means of quantum chemical calculations. The electrochemical properties of these dyes have been investigated by using cyclic voltammetry, while their photovoltaic performance was evaluated by a device fabrication study. The experimental and calculation data show that all of the dyes can be regarded as potentially good photosensitizers for dye-sensitized solar cells.
\\\\expert2\\nbo\\Journal of Fluorescence\\2015, v.25, p.763-775.pdf
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5.

Вид документа : Статья из журнала
Шифр издания : 54/S 98
Автор(ы) : Verbitskiy E. V., Slepukhin P. A., Kravchenko M. A., Skornyakov S. N., Evstigneeva N. P., Kungurov N. V., Zil'berberg N. V., Rusinov G. L., Chupakhin O. N., Charushin V. N.
Заглавие : Synthesis, antimycobacterial and antifungal evaluation of some new 1-ethyl-5-(hetero)aryl-6-styryl-1,6-dihydropyrazine-2,3-dicarbonitriles [Электронный ресурс]
Место публикации : Bioorganic and Medicinal Chemistry Letters. - 2015. - Vol. 25, № 3. - С. 524-528
Систем. требования: http://apps.webofknowledge.com/
Примечания : Bibliogr. : p. 528 (16 ref.). - 18.01.2016
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): pyrazines--antituberculosis activity--petasis reaction
Аннотация: The Petasis reaction of 6-hydroxy adducts of 1-alkyl-2,3-dicyano-5-arylpyrazinium salts with trans-styrylboronic acids proved to proceed smoothly at room temperature to give the corresponding 5-(hetero)aryl-6-styryl substituted 1,6-dihydropyrazine derivatives. Also it has been found that C(6) unsubstituted 1,6-dihydro- or 1,4,5,6-tetrahydropyrazine derivatives can be easy prepared in high yields from the corresponding pyrazinium salts by reduction with triethylsilane. All synthesized compounds were screened in vitro for their antifungal activities against seven pathogenic fungal strains and antimycobacterial activities against Mycobacterium tuberculosis H(37)Rv, avium, terrae and multi-drug-resistant strains isolated from tuberculosis patients in the Ural region (Russia)
\\\\expert2\\nbo\\Bioorganic and Medicinal Chemistry Letters\\2015, v. 25, p. 524.pdf
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6.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Korotina A. V., Tolshchina S. G., Ishmetova R. I., Rusinov G. L., Chupakhin O. N., Charushin V. N., Evstigneeva N. P., Gerasimova N. A., Zil’berberg N. V., Kungurov N. V.
Заглавие : Synthesis of novel [1,2,4]triazolo[1,5-b][1,2,4,5]tetrazines and investigation of their fungistatic activity
Место публикации : Beilstein Journal of Organic Chemistry. - 2022. - Vol. 18. - С. 243-250
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: A series of novel [1,2,4]triazolo[1,5-b][1,2,4,5]tetrazines has been synthesized through oxidation reaction of the corresponding 3,6-disubstituted 1,2,4,5-tetrazines bearing amidine fragments. It is shown that the heterocyclic systems obtained can be modified easily at C(3) position in the reactions with aliphatic alcohols and amines. Also, the reactivity of [1,2,4]triazolo[1,5-b][1,2,4,5]tetrazines towards CH-active compounds has been studied. The obtained triazolo[1,5-b]annulated 1,2,4,5-tetrazines proved to be active in micromolar concentrations in vitro against filamentous anthropophilic and zooanthropophilic dermatophyte fungi (Trichophyton, Microsporum and Epidermofiton), which cause skin and its appendages (hair, nails) diseases.
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7.

Вид документа : Статья из журнала
Шифр издания : 54/S 98
Автор(ы) : Yarovenko V. N., Polushina A. V., Levchenko K.S., Zavarzin I. V., Krayushkin M. M., Kotovskaya S. K., Charushin V. N.
Заглавие : Synthesis of fluorine-containing analogs of ellipticine and other heterocycles from 2-Nitro-and 2-amino-4,5-difluoroanilines [Electronic resource]
Место публикации : Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2007. - Vol. 43, № 9. - С. 1387-1392
Систем. требования: http://www.springerlink.com/content/a23190p8xv84562j/fulltext.pdf
Примечания : 28.10.2011 г.
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: 2-Nitro- and 2-amino-4,5-difluoroanilines were used as starting materials to synthesize fluorine-containing imidazole, oxazole, and indoloquinoxaline derivatives. The latter may be regarded as ellipticine analogs
\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2007, 43 (9), 1387.pdf
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8.

Вид документа :
Шифр издания : 54/S 98
Автор(ы) : Pestov A. V., Slepukhin P. A., Yatluk Yu. G., Charushin V. N., Chupakhin O. N.
Заглавие : Synthesis of chelating polymer sorbents by using the S-N(H) methodology
Место публикации : Journal of Applied Polymer Science . - 2012. - Vol.125, №3. - С. 1970-1978
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): functionalization of polymers--phenol--x-ray analysis
Аннотация: The article describes a new synthetic approach to modify the structure of phenol-formaldehyde and resorcinol-formaldehyde resins, which enables one to functionalize a polymer matrix by using the S?NH (nucleophilic aromatic substitution of hydrogen) methodology. Direct heteroarylation of phenol (resorcinol) fragments in polymer chains with 1,2,4-triazine derivatives illustrates a new synthetic method in the polymer chemistry. The feature of this methodology is that it provides an opportunity to accomplish direct one-pot polymer transformations by incorporating of rather complicated chelating groups through the displacement of hydrogen in phenol moieties. It has been shown that in order to obtain chemically modified polymers on the basis of phenol-formaldehyde and resorcinol-formaldehyde resins with a high degree of substitution with chelating units, a polymer matrix has to react with 3-(pyridin-2'-yl)-1,2,4-triazin-5(2H)-one. Also, it has been found that polymer sorbents with a high selectivity can be obtained by using the template method. Targeted synthesis of model compounds, as structural units of the chelating polymers, and elucidation of the structure of their complexes with copper (II) ions have shown that the most plausible type of coordination is formation of the bridge 1 : 1 complexes of the a,a'-bipyridinyl type.
\\\\expert2\\nbo\\Journal of Applied Polymer Science\\2012, vol.125,p.1970.pdf
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9.

Вид документа : Статья из журнала
Шифр издания : 54/S 98
Автор(ы) : Irgashev R. A., Karmatsky A. A., Rusinov G. L., Charushin V. N.
Заглавие : Synthesis of 4-(thien-2-yl)-substituted coumarins through Lewis acid catalyzed Michael addition of thiophenes to 3-benzoylcoumarins followed by oxidation [Электронный ресурс]
Место публикации : Tetrahedron Letters. - 2014. - Vol.55, №26. - С. 3603-3606
Систем. требования: http://www.sciencedirect.com/science/article/pii/S0040403914007497
Примечания : 08.08.2014
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): thiophenes--3-benzoylcoumarins--lewis acid
Аннотация: 3-Benzoyl-4-(thien-2-yl)coumarins have been obtained in good yields according to the SNH addition–oxidation protocol, involving the diastereoselective addition of thiophenes at C-4 of 3-benzoylcoumarins under BBr3 catalysis, followed by oxidation of the intermediate 3,4-trans-3-benzoyl-4-(thien-2-yl)-3,4-dihydrocoumarins with DDQ. This two-step procedure can be regarded as nucleophilic substitution of hydrogen (SNH) on the heterocyclic ring of coumarins
\\\\expert2\\nbo\\Tetrahedron Letters\\2014, v. 55, p. 3603.pdf
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10.

Вид документа :
Шифр издания : 54/S 98
Автор(ы) : Kravchenko M. A., Nosova E. V., Lipunova G. N., Chasovskikh O. M., Sokolov V. A., Charushin V. N.
Заглавие : Synthesis and tuberculostatic activity of fluoridized 3-Z-hydrazine-2-benzoyl acrylates and their cyclization products
Место публикации : Problemy tuberkuleza . - 2003. - №7. - С. 49-52
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): acrylic acid derivative--pyrazole --tuberculostatic agent
Аннотация: A rapid development of the resistance of drugs and their toxic and adverse reactions suggest that new antituberculous drugs should be designed. Of the greatest importance is isoniazid resistance. Testing new compounds (IIa, b) has established that the minimum inhibitory concentration of the drug (IIa), 0.39 microgram/ml suppresses the growth of Mycobacterium tuberculosis (MBT) in the macrophages up to 50%, that of the drug (IIb), 1.56 micrograms/ml, causes death in 25% of cases, which is indicative of the high activity of compounds (IIa, b) against MBT
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