Центральная Научная Библиотека УрО РАН

Вид документа : Статья из журнала
Шифр издания : 54/H 19
Автор(ы) : Sevenard D. V., Kazakova O., Chizhov D. L., Yachevskii D. S., Lork E., Poveleit J., Charushin V. N., Roeschenthaler G.-V.
Заглавие : Halogenation of fluorinated 1,3,5-triketones
Место публикации : Helvetica Chimica Acta. - 2007. - Vol. 90, № 2. - С. 369-384
Примечания : Библиогр. : с. 384 (17 назв.)
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The behavior of linear and cyclic fluorinated 1,3,5-triketones and their metal derivatives towards common halogenating agents was examined, and optimal reaction conditions for the straightforward synthesis of mono-, di-, and tetrahalogenated products were found (Schemes 1-3). An aromatization through a double HBr elimination from an ,-dibrominated cyclohexanone was shown to be a promising synthetic route to 1,1-(2-hydroxy-1,3-phenylene)bis[2,2,2-trifluoroethanones] (= 2,6-bis(trifluoroacetyl)phenols; Scheme 4). Additionally, the 1,3,5-triketones prepared add readily H2O or alcohols to produce novel bridged 2,6-dihydroxypyran-4-ones (Scheme 2). The structure of the obtained compounds 6a and 7a was confirmed by X-ray structure analysis.
\\\\expert2\\nbo\\Helvetica Chimica Acta\\2007. V. 90. P. 369.pdf
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Вид документа : Статья из журнала
Шифр издания : 54/S 98
Автор(ы) : Kotovskaya S. K., Zhumabaeva G. A., Perova N. M., Baskakova Z. M., Charushin V. N., Chupakhin O. N., Belanov E. F., Bormotov N. I., Balakhnin S. M., Serova O. A.
Заглавие : Synthesis and antiviral activity of fluorinated 3-phenyl-1,2,4-benzotriazines [Electronic resource]
Место публикации : Pharmaceutical Chemistry Journal. - 2007. - Vol. 41, № 2. - С. 62-68
Систем. требования: http://www.springerlink.com/content/b1m825j2867w2x00/fulltext.pdf
Примечания : Библиогр. : с. 68 (18 назв.). - 1.11.2011 г.
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: New synthetic approaches to fluorinated 3-phenyl-1,2,4-benzotriazines for biological testing have been elaborated. 1-(3,4-Difluorophenyl)-3,5-diphenylformazan (IVa) was synthesized via dinitriding of 3,4-difluoroaniline, followed by azo-addition of the resulting azobenzenediazonium chloride with acetaldehyde phenylhydrazone. 6,7-Difluoro-3-phenyl-1,2,4-benzotriazine (Va) was obtained via intramolecular cyclization of formazan IVa in the presence of BF3/AcOH complex. Monofluoro-substituted 6-R-7-fluoro-3-phenyl-1,2,4-benzotriazine derivatives (Vb-Vq) were prepared by substituting fluorine atom with alkoxides in 3,4-difluoronitrobenzene. Conditions for nucleophilic substitution of the second fluorine atom in benzotriazines V have been established. Fluorinated 3-phenyl-1,2,4-benzotriazines have been tested for antiviral and cytotoxic activity on Vero cell cultures and proved to be active against severe diseases caused by smallpox and some other pathogenic viruses. ??
\\\\Expert2\\nbo\\Pharmaceutical Chemistry Journal\\2007, 41 (2), 62.pdf
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Вид документа : Статья из журнала
Шифр издания : 54/Ч-54
Автор(ы) : Charushin V. N., Kotovskaya S. K., Romanova S. A., Chupakhin O. N., Tomilov Yu. V., Nefedov O. M.
Заглавие : 4,5-Difluoro-1,2-dehydrobenzene: generation and cycloaddition reactions [Electronic resource]
Место публикации : Mendeleev Communications. - 2005. - Vol. 15, № 2. - С. 45-46
Систем. требования: http://www.sciencedirect.com/science/article/pii/S0959943605701760
Примечания : 11.10.2011
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The oxidation of 1-amino-5,6-difluorobenzotriazole with Pb(OAc)4 in dry CH2Cl2 afforded 4,5-difluoro-1,2-dehydrobenzene, a new active intermediate, which can be used in situ for the synthesis of fluorinated carbo- and heterocyclic compounds via cycloaddition reactions.
\\\\Expert2\\nbo\\Mendeleev Communications\\2005, v.15, p.45.pdf
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Вид документа : Статья из журнала
Шифр издания : 54/C 47
Автор(ы) : Charushin V. N., Chupakhin O. N.
Заглавие : S-N(H) methodology and new approaches to condensed heterocyclic systems
Место публикации : Pure and Applied Chemistry. - 2004. - Vol. 76, № 9. - С. 1621-1631: рис.
Примечания : Библиогр.: с. 1631 (70 ref.)
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The review curveys the reactions of electron-deficient azaaromatic compounds with mono- and bifunctional nucleophilies in which a nucleophilic attack at the unsubstituted CH carbon of an aromatic ring is one of the key steps.Intramolecular S(N)H reactions will also be considered as effective synthetic tools to obtain condensed heterocyclic systems
\\\\Cserver\\dist\\НБО\\Электронная библиотека_Библиогр1\\Pure and Applied Chemistry\\2004, v.76, N 9, p.1621.pdf
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Вид документа : Статья из журнала
Шифр издания : 54/N 52
Автор(ы) : Tsoi E., Charushin V. N., Nosova E. V., Lipunova G. N., Tkachev A.V.
Заглавие : New approach to [a]-fused fluoroquinolones: the synthesis of 5-oxo-1,2,3,3a,4,5-hexahydropyrrolo[1,2-a]quinolines [Electronic resource]
Место публикации : Mendeleev Communications. - 2001. - Vol. 11, № 2. - С. 53-54
Систем. требования: http://www.sciencedirect.com/science/article/pii/S0959943601707092
Примечания : 11.10.2011
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The reaction of N-(ethoxycarbonyl)methyl substituted ethyl 6,7-difluoro-, 6,7,8-trifluoro- and 5,6,7,8-tetrafluoro-4-oxo-1,4-dihydroquinoline-3-carboxylates with methyl methacrylate results in the [3 + 2] adducts, hexahydropyrrolo[1,2-a]quinolones, which can be precursors of [a]-fused fluoroquinolones.??????
\\\\expert2\\nbo\\Mendeleev Communications\\2001, v.11, N 2. p.53.pdf
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Вид документа : Статья из сборника (однотомник)
Шифр издания : 54/C 57
Автор(ы) : Chupakhin O. N., Charushin V. N.
Заглавие : S-N(H) Reactions of ch-acids and polychlorinated organic compounds in ionic liquids
Место публикации : Green Chemistry in Russia. - 2005. - С. 19-28: рис.; Green Chemistry Series N 12. - ISBN 88-88214-17-8. - ISBN 88-88214-17-8
Примечания : Библиогр.: p. 19-28 (7 ref.)
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: We have discussed the grounds of modern understandings about S reactions. Quite recently??N??they used to be associated with Chichibabin reaction,hydroxylation of nitrobenzene,synthesis of??alizarin,i.e. with the processes occurring under stringent conditions,what is natural in terms of the??- high-energy nature of the displaced H particle. This situation did not stimulate chemists to investi-??gate this area. This pattern entirely changed today. Modern data on the reaction mechanism give a??clear idea of a necessity to fulfil an indirect removal of the hydride ion. This knowledge has undeni-??ably contributed much to the progress in this field of research through development of diverse and??H??convenient synthetic methods with the use of S??reactions.??N
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Вид документа : Статья из журнала
Шифр издания : 54/R 30
Автор(ы) : Rusinov G. L., Verbitskiy E. V., Slepukhin P. A., Zabelina O. N., Kodess M. I., Ezhikova M. A., Charushin V. N., Chupakhin O. N.
Заглавие : Reactions of radicals generated from 1-ethyl-1,4-diazinium salts: Addition to the C-C triple bond versus dimerization
Место публикации : Heterocycles. - 2009. - Vol. 78, № 9. - С. 2315-2324
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Radical species generated from 5-aryl-substituted 1-ethyl-2,3-dicyano-1,4-diazinium salts by action of sodium iodide undergo dimerization into [2,2?]bipyrazinyl derivatives, as evidenced by NMR and X-ray crystallography data. The pyrazinyl radicals can also be involved into the addition reaction on the C-C triple bond, thus demonstrating a new synthetic route to modify the structure of pyrazines. The structures of E- and Z-isomers of 1-(1?,2?-dihydropyrazinyl-2?)-2-iodoethenes have been proved by 1H and 13C NMR spectroscopy and X-ray analysis
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Вид документа : Статья из журнала
Шифр издания : 54/B 74
Автор(ы) : Boltacheva N. S., Filyakova T. I., Charushin V. N.
Заглавие : Fluoroalkyl-Containing Lithium 1,3-Diketonates in Reactions with Amines and Ammonium Salts [Electronic resource]
Место публикации : Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2005. - Vol. 41, № 10. - С. 1452-1457
Систем. требования: http://www.springerlink.com/content/f616128135p37632/fulltext.pdf
Примечания : 28.10.2011 г.
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Reactions of fluoroalkyl-containing lithium 1,3-diketonates with amines or ammonium salts in glacial acetic acid or methanol at 20°C provide an efficient synthetic route to fluoroalkyl-containing ?-amino-vinyl ketones. Depending on the conditions, reactions of lithium diketonates with 1-aminonaphthalene lead to formation of both ?-aminovinyl ketones and cyclocondensation products, benzo[h]quinolines. The latter can be obtained in one step without isolation of ?-aminovinyl ketones
\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2005, 41 (10), 1452.pdf
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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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10.

Вид документа : Статья из журнала
Шифр издания : 54/F 70
Автор(ы) : Lipunova G. N., Nosova E. V., Sidorova L. P., Charushin V. N., Chasovskikh O. M., Tkachev A.V.
Заглавие : Fluorine-Containing Heterocycles. VIII. Transformations of 2-Polyfluorobenzoylacrylates Having a Thiosemicarbazide Fragment [Electronic resource]
Место публикации : Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2002. - Vol. 38, № 12. - С. 1790-1796
Систем. требования: http://www.springerlink.com/content/w376n0761726k3g1/fulltext.pdf
Примечания : 31.10.2011 г.
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Depending on the conditions, 3-(4-R-thiosemicarbazido)-2-polyfluorobenzoylacrylates can be converted into the corresponding potassium salts, [1,3,4]thiadiazino[6,5,4-ij]quinolines, and pyrazole or 1,3,4-thiadiazole derivatives
\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2002, 38 (12), 1790.pdf
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11.

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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12.

Вид документа : Статья из журнала
Шифр издания : 54/R 30
Автор(ы) : Romanova I. P., Yusupova G. G., Yakhvarov D. G., Larionova O. A., Mochul`skaya N. N., Sidorova L. P., Charushin V. N.
Заглавие : Reaction of fullerene C60 with 2-azido-4,6-diphenylpyrimidine [Electronic resource]
Место публикации : Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2003. - Vol. 52, № 10. - С. 2171-2174
Систем. требования: http://www.springerlink.com/content/j72721m78tt80214/fulltext.pdf
Примечания : 26.10.2011
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The first representative of the pyrimidine-substituted [60]fullereno[1,2-b]aziridines was synthesized by the reaction of fullerene C60 with 2-azido-4,6-diphenylpyrimidine. 2-(Azahomo[60]fullereno)-4,6-diphenylpyrimidine was found to be formed as a by-product. The electrochemical properties of the adducts were studied
\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2003, 52 (10), 2171.pdf
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13.

Вид документа : Статья из журнала
Шифр издания : 54/C 47
Автор(ы) : Charushin V. N., Chupakhin O. N.
Заглавие : New methodologies of organic synthesis
Место публикации : Herald of the Russian Academy of Sciences. - 2007. - Vol. 77, № 3. - С. 227-231
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: 20th century may be called the century of organic synthesis because it saw many Nobel prizewinners in this field. Organic synthesis has long-standing traditions in Russian science as well. Back in the 1930s, a scientific school of organic chemists, headed by I.Ya. Postovskii, was formed in the Urals. The following report from an RAS Presidium session is devoted to the works by the disciples of this school
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14.

Вид документа : Статья из журнала
Шифр издания : 54/A 19
Автор(ы) : Gruzdev D.A., Levit G. L., Krasnov V. P., Chulakov E.N., Sadretdinova L. Sh., Grishakov A. N., Ezhikova M. A., Kodess M. I., Charushin V. N.
Заглавие : Acylative kinetic resolution of racemic amines using N-phthaloyl-(S)-amino acyl chlorides
Место публикации : Tetrahedron: Asymmetry . - 2010. - Vol. 21, № 8. - С. 936-942
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: A comparative study of the kinetic resolution of racemic 2-methyl-1,2,3,4-tetrahydroquinoline and 2,3-dihydro-3-methyl-4H-1,4-benzoxazine using N-phthaloyl-(S)-amino acyl chlorides as chiral acylating agents is described. Temperature and solvent effects on the stereochemical features have been examined. It has been found that N-phthaloyl-(S)-phenylalanyl and N-phthaloyl-(S)-2-phenylglycyl chlorides bearing aromatic substituents close to the stereogenic centre are more stereoselective acylating agents than N-phthaloyl-(S)-alanyl chloride. For the preparative kinetic resolution of racemic amines N-phthaloyl-(S)-phenylalanyl chloride proved to be the most appropriate chiral acylating agent
\\\\Expert2\\nbo\\Tetrahedron Asymmetry\\2010, v. 21, p.936.pdf
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15.

Вид документа : Статья из журнала
Шифр издания : 54/R 30
Автор(ы) : Verbitskiy E. V., Slepukhin P. A., Ezhikova M. A., Kodess M. I., Rusinov G. L., Charushin V. N.
Заглавие : Reactions of sigma(H)-adducts of 1-ethyl-1,4-diazinium salts with arylalkynes as a one-step approach to pyrrolo[1,2-a]pyrazine derivatives [Electronic resource]
Место публикации : Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2009. - Vol. 58, № 6. - С. 1291-1293
Систем. требования: http://www.springerlink.com/content/30140045p8115192/fulltext.pdf
Примечания : 27.10.2011 г.
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The O- and C-adducts of 5-aryl and 5-hetaryl-2,3-dicyano-1-ethylpyrazinium salts are hidden sources of ylides, which can be used for the cyclization with arylacetylenes giving rise to pyrrolo[1,2-a]pyrazines
\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2009, 58 (6), 1291-1293.pdf
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16.

Вид документа : Статья из журнала
Шифр издания : 54/R 30
Автор(ы) : Rusinov G. L., Verbitskiy E. V., Slepukhin P. A., Zabelina O. N., Kodess M. I., Ezhikova M. A., Charushin V. N., Chupakhin O. N.
Заглавие : Reactions of radicals generated from 1-ethyl-1,4-diazinium salts: addition to the C-C triple bond dimerization
Место публикации : Heterocycles : an International Journal for Reviews and communications in Heterocyclic Chemistry. - 2011. - V. 78, № 9. - С. 2315-2324: граф., табл.
Примечания : Библиогр.: с. 2323-2324 (32 назв.)
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Radical species generated from 5-aryl-substituted 1-ethyl-2,3-dicyano-1,4-diazinium salts by action of sodium iodide undergo dimerization into [2,2']bipyrazinyl derivatives, as evidenced by NMR and X-ray crystallography data. The pyraziny! radicals can also be involved into the addition reaction on the C-C tziple bond, thus demonstrating a new synthetic route to modify the structure of pyrazines. The structures of E- and Z-isomers of 1-(1',2'-dihydropyrazinyl-2')-2-iodoethenes have been proved by 1H and 13C NMR spectroscopy and X-ray analysis.
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17.

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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18.

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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19.

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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20.

Вид документа : Статья из журнала
Шифр издания : 54/S 98
Автор(ы) : Kotovskaya S. K., Zhumabaeva G. A., Perova N. M., Baskakova Z. M., Charushin V. N., Chupakhin O. N., Belanov E. F., Serova O. A.
Заглавие : Synthesis and antiviral activity of fluorinated 3-phenyl-1,2,4- benzotriazines
Место публикации : Pharmaceutical Chemistry Journal. - 2007. - Vol.41, №2. - С. 62-68
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): cyclization--cytotoxicity--fluorination
Аннотация: New synthetic approaches to fluorinated 3-phenyl-1,2,4-benzotriazines for biological testing have been elaborated. 1-(3,4-Difluorophenyl)-3,5- diphenylformazan (IVa) was synthesized via dinitriding of 3,4-difluoroaniline, followed by azo-addition of the resulting azobenzenediazonium chloride with acetaldehyde phenylhydrazone. 6,7-Difluoro-3-phenyl-1,2,4-benzotriazine (Va) was obtained via intramolecular cyclization of formazan IVa in the presence of BF3/AcOH complex. Monofluoro-substituted 6-R-7-fluoro-3-phenyl-1,2,4- benzotriazine derivatives (Vb-Vq) were prepared by substituting fluorine atom with alkoxides in 3,4-difluoronitrobenzene. Conditions for nucleophilic substitution of the second fluorine atom in benzotriazines V have been established. Fluorinated 3-phenyl-1,2,4-benzotriazines have been tested for antiviral and cytotoxic activity on Vero cell cultures and proved to be active against severe diseases caused by smallpox and some other pathogenic viruses
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21.

Вид документа : Статья из журнала
Шифр издания : 54
Автор(ы) : Chulakov E.N., Gruzdev D.A., Levit G. L., Sadretdinova L. Sh., Krasnov V. P., Charushin V. N.
Заглавие : 2-Arylpropionyl chlorides in kinetic resolution of racemic 3-methyl-2,3-dihydro-4H-[1,4]benzoxazines
Место публикации : Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2011. - Vol.60, №5. - С. 948-954
Примечания : Bibliogr. : p. 953-954 (34 ref.)
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): kinetic resolution--acyl chlorides--enantiomers
Аннотация: Kinetic resolution of racemic 3 methyl 2,3 dihydro 4H [1,4]benzoxazines in the reaction with chiral 2 arylpropionyl chloride predominantly yielded R*,R* diastereomers. Ibuprofen acyl chloride as acylating agent was found to be more selective and sensitive to the changes in the reaction temperature as compared to naproxen acyl chloride and 2 phenylpropionyl chloride
\\\\expert2\\NBO\\Russian Chemical Bulletin\\2011, 60 (5), 948-954.pdf
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22.

Вид документа : Статья из журнала
Шифр издания : 54/C 31
Автор(ы) : Krivtsov I. V., Titova Yu. A., Ilkaeva M. V., Avdin V. V., Fedorova O. V., Khainakov S. A., Garcia J. R., Rusinov G. L., Charushin V. N.
Заглавие : Catalysts for enantioselective Biginelli reaction based on the composite silica-zirconia xerogels prepared using different zirconium sources [Электронный ресурс]
Место публикации : Journal of Sol-Gel Science and Technology . - 2014. - Vol.69, №2. - С. 448-452
Систем. требования: http://download.springer.com/static/pdf/910/art%253A10.1007%252Fs10971-013-3242-z.pdf?auth66=1395304269_eb978aa91b5abc3459b7be6b8781338b&ext=.pdf
Примечания : Bibliogr. : p. 452 (17 ref.). - 18.03.2014
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): sol-gel method--zirconium oxychloride--silica-zirconia xerogels
Аннотация: The composite silica-zirconia xerogels have been prepared via sol-gel method using zirconium oxychloride, oxynitrate, acetate and sodium silicate as the precursors. The prepared materials have been characterized using FTIR, TG/DTA, EDX and surface area analyses. It has been established that surface area of silica-zirconia xerogels significantly depends on the zirconium source, but phase transitions and structural features of the xerogels seem to be unaffected by the choice of the zirconia precursor. Prepared xerogels increase the activity of chiral inductor in the asymmetric Biginelli reaction. The anion of the zirconium salt adsorbed on the surface of the synthesized material and the presence of Si-O-Zr heterolinkages determines the reaction yield. The highest chemo- and enantioselectivity towards formation of ee isomer have been provided by the catalyst prepared from zirconium oxychloride.
\\\\expert2\\nbo\\Journal of Sol-Gel Science and Technology\\2014, v.69, N 2, p.448-452.pdf
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23.

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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24.

Вид документа : Статья из журнала
Шифр издания : 54/S 98
Автор(ы) : Kravchenko M. A., Verbitskiy E. V., Medvinskiy I. D., Rusinov G. L., Charushin V. N.
Заглавие : Synthesis and antituberculosis activity of novel 5-styryl-4-(hetero)aryl-pyrimidines via combination of the Pd-catalyzed Suzuki cross-coupling and SNH reactions [Электронный ресурс]
Место публикации : Bioorganic and Medicinal Chemistry Letters. - 2014. - Vol. 24, №14. - С. 3118-3120
Систем. требования: http://www.sciencedirect.com/science/article/pii/S0960894X14004934
Примечания : 08.08.2014
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): pyrimidine--antimicobacterial--tuberculosis
Аннотация: Combination of the Suzuki cross-coupling and nucleophilic aromatic substitution of hydrogen (SNH) reactions proved to be a convenient method for the synthesis of 5-styryl-4-(hetero)aryl substituted pyrimidines from commercially available 5-bromopyrimidine. All intermediate 5-bromo-4-(hetero)aryl substituted pyrimidines and also the targeted 5-styryl-4-(hetero)arylpyrimidines were found to be active in micromolar concentrations in vitro against Mycobacterium tuberculosis H37Rv, avium, terrae, and multi-drug-resistant strain isolated from tuberculosis patients in Ural region (Russia). It has been found that some of these compounds possess a low toxicity and have a bacteriostatic effect, comparable and even higher with that of first-line antituberculosis drugs
\\\\expert2\\nbo\\Bioorganic and Medicinal Chemistry Letters\\2014, v. 24, p. 3118.pdf
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25.

Вид документа : Многотомное издание
Шифр издания : 54/L 79
Автор(ы) : Lipunova G. N., Nosova E. V., Charushin V. N.
Заглавие : Fluorinated Quinolines: Synthesis, Properties and Applications
Место публикации : Fluorine in Heterocyclic Chemistry: Издательство "Springer", 2014. - Vol. 2. - С. 59-109
Примечания : Bibliogr. : p. 108-109 (158 ref.)
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): fluorinated quinolines--synthetic methods--cycloaddition reactions
Аннотация: The data on the chemistry of fluorinated quinolines available in the literature of the last 10–15 years are presented. A variety of synthetic methods exploiting cyclization and cycloaddition reactions, displacements of halogen atoms or the diaza group, as well as direct fluorinations have been considered. Novel approaches to functionalization of polyfluorinated quinolines, including nucleophilic displacement of fluorine atoms, cross-coupling reactions, and synthesis on the basis of organometallic compounds are discussed. Selected representative examples of fluoroquinolines exhibiting a remarkable biological activity or those quinolines which have already found their applications in medicine will also be discussed in the text. The bibliography
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26.

Вид документа : Статья из журнала
Шифр издания : 54/C 47
Автор(ы) : Charushin V. N., Chupakhin O. N., Van der Plas H. C.
Заглавие : Reactions of Azines with Bifunctional Nucleophiles: Cyclizations and Ring Transformations [Электронный ресурс]
Место публикации : Advances in Heterocyclic Chemistry. - 1988. - Vol. 43 (C). - С. 301-353
Систем. требования: http://www.sciencedirect.com/science/article/pii/S0065272508602561
Примечания : Bibliogr. : p. 347-353 (200 ref.). - 23.10.15
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): azines--bifunctional reagents--cycloadducts
Аннотация: Reactions of azines with bifunctional nucleophiles can give rise to several cycloadducts, the structure depending on the nature of reagents, the structure of the azine substrate, and the reaction conditions. Three types of cycloadducts are proposed to be formed in reactions of azines with such 1,3-N,C-dinucleophiles as acetamidines and acetimino esters. Ortho-cyclization products can usually be isolated, while meta- and para-bridged cycloadducts are unstable and are often transformed into other heterocyclic systems. Their presence as intermediates can, however, often is rationalized by spectroscopic methods or 15N-labeling studies. Many of the reactions discussed provide a very convenient synthetic route to a great variety of azine derivatives. It seems to be a very interesting and promising area of heterocyclic chemistry and there is no doubt that further investigations into this field also allow new syntheses of useful compounds to be developed
\\\\expert2\\nbo\\Advances in Heterocyclic Chemistry\\1988. V. 43 (C). P. 301-353.pdf
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27.

Вид документа : Статья из журнала
Шифр издания : 54/B 39
Автор(ы) : Charushin V. N., Alexeev S. G., Chupakhin O. N., Van der Plas H. C.
Заглавие : Behavior of Monocyclic 1,2,4-Triazines in Reactions with C-, N-, O-, and S-Nucleophiles [Электронный ресурс]
Место публикации : Advances in Heterocyclic Chemistry. - 1989. - Vol. 46 (C). - С. 73-142
Систем. требования: http://www.sciencedirect.com/science/article/pii/S0065272508607977
Примечания : Bibliogr. : p. 135-142 (200 ref.). - 23.10.15
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): 1,2,4-triazines--nitrogen-containing heterocycles
Аннотация: Among the six-membered nitrogen-containing heterocycles the 1,2,4-triazines have attracted the attention of chemists for a long time. This is due to the fact that many 1,2,4-triazine derivatives are biologically active and are used in medicine and agriculture. Moreover, 1,2,4-triazines are of chemical interest. They proved to be very susceptible to attack by all kinds of nucleophiles, leading to the addition, and subsequently either substitution or cyclization, and ring transformation. This continuing and lively interest in this area of heterocyclic chemistry has produced a great number of publications and patent applications. This chapter concentrates on the behavior of monocyclic 1,2,4-triazines in reactions with C-, N-, 0-, and S-nucleophiles, because the important features of general character established for simple 1,2,4-triazines can evidently be applied to other derivatives including condensed 1,2,4-triazines.
\\\\expert2\\nbo\\Advances in Heterocyclic Chemistry\\1988. V. 46 (C). P. 73-142.pdf
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28.

Вид документа : Статья из журнала
Шифр издания : 54/M 38
Автор(ы) : Klyuev N. A., Baklykov V. G., Charushin V. N., Chupakhin O. N.
Заглавие : Mass spectrometry of nitrogenous heterocycles. 1. Mass spectrometric evaluation of stability of tetrahydropyrazines annelated to five- and six-membered heterocycles [Электронный ресурс]
Место публикации : Chemistry of Heterocyclic Compounds. - 1989. - Vol. 25, № 4. - С. 444-450
Систем. требования: http://link.springer.com/article/10.1007/BF00480763
Примечания : Bibliogr. : p. 450 (18 ref.). - 24.10.15
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): tetrahydropyrazines--dissociation reaction
Аннотация: Based on a study of electron impact mass spectra of a large number of tetrahydropyrazines, which are joined to five- and six-membered heterocyclic and carbocyclic residues, the trends which characterize the stability of these condensed systems are found. The proposed criteria can be used for evaluation of the chemical stability of these compounds, for example, their propensity toward the reverse dissociation reaction.
\\\\expert2\\nbo\\Chemistry of Heterocyclic Compounds\\1989, v.25, N 4, p. 444.pdf
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29.

Вид документа : Статья из журнала
Шифр издания : 54/A 10
Автор(ы) : Bazhin D. N., Kudyakova Yu.S., Roeschenthaler G.-V., Burgart Ya. V., Slepukhin P. A., Isenov M. L., Saloutin V. I., Charushin V. N.
Заглавие : A Convenient Approach to CF3-Containing N-Heterocycles Based on 2-Methoxy-2-methyl-5-(trifluoromethyl)furan-3(2H)-one [Электронный ресурс]
Место публикации : European Journal of Organic Chemistry. - 2015. - № 23. - С. 5236-5245
Систем. требования: http://apps.webofknowledge.com/
Примечания : Bibliogr. : p. 5245 (23 ref.). - 18.01.16
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): nitrogen heterocycles --fluorine--oxygen heterocycles
Аннотация: New synthetic routes to trifluoromethylated N-heterocycles based on condensations of 2-methoxy-2-methyl-5-(trifluoromethyl)furan-3(2H)-one with bifunctional N-nucleophiles are described. For the first time, trifluoromethyl-containing pyrazoles, pyrazolines and isoxazolines bearing hydrazone or oxime groups could be obtained by a one-pot strategy based on reactions of 5-(trifluoromethyl)furan-3(2H)-one with two equivalents of the corresponding hydrazines or hydroxylamine in the presence of an acid. The interaction of furan-3(2H)-one with ureas proceeded under mild conditions to furnish 1H-furo[2,3-d]imidazol-2(3H)-one derivatives in good yield. Further, a trifluoromethyl-containing quinoxaline derivative was obtained by condensation of furan-3(2H)-one with ortho-phenylenediamine.
\\\\expert2\\nbo\\European Journal of Organic Chemistry\\2015, №23. p.5236-5245.pdf
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30.

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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