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 Найдено в других БД:Труды Института высокотемпературной электрохимии УрО РАН (26)Труды сотрудников Института теплофизики УрО РАН (28)Труды сотрудников Института химии твердого тела УрО РАН (25)Расплавы (59)Публикации Черешнева В.А. (1)Публикации Чарушина В.Н. (11)
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Общее количество найденных документов : 43
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 1-10    11-20   21-30   31-40   41-43 
1.
Инвентарный номер: нет.
   
   T 82


   
    Transformations of 1,2,4-triazine 4-oxides to pyridazines and triazolo[4,3-b]pyridazines by the action of substituted acetonitriles [Electronic resource] / D. N. Kozhevnikov, N. N. Kataeva, V. L. Rusinov, O. N. Chupakhin, G. G. Aleksandrov // Mendeleev Communications. - 2005. - Vol. 15, № 1. - P31-33
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Two types of ring transformations of 1,2,4-triazine to pyridazine were found: 1,2,4-triazine 4-oxides bearing ortho-halophenyl in the 3-position react with phenylacetonitrile under basic conditions to form 3-(2-oxyphenyl)[1,2,4]triazolo[4,3-b]pyridazines, while the reactions of 3,6-diaryl-1,2,4-triazin 4-oxides with sodium ethyl cyanoacetate afforded 2-aminopyridazines.

\\\\Expert2\\nbo\\Mendeleev Communications\\2005, v.15, p.31.pdf
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2.
Инвентарный номер: нет.
   
   R 30


   
    Reactivity of congeners of Sovol technical mixture of polychlorinated biphenyls toward sodium methoxide [Electronic resource] / O. N. Zabelina, T. I. Gorbunova, M. G. Pervova, V. E. Kirichenko, A. Ya. Zapevalov, V. I. Saloutin, O. N. Chupakhin // Russian Journal of Applied Chemistry. - 2004. - Vol. 77, № 9. - P1523-1527. - Библиогр. : с. 1527 (6 назв.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The reaction of Sovol technical mixture of polychlorobiphenyls with sodium methoxide in bipolar aprotic solvents was studied. The reactivity of polychlorobiphenyls was evaluated using gas chromatography and gas chromatography-mass spectrometry.

\\\\Cserver\\dist\\НБО\\Электронная библиотека_Библиогр1\\Russian Journal of Applied Chemistry\\2004, v. 77, N. 9 p.1523.pdf
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3.
Инвентарный номер: нет.
   
   S 98


   
    Synthesis, analgesic and antipyretic activity of 2-(antipyrin-4-yl)hydrazones of 1,2,3-triketones and their derivatives [Electronic resource] / E. V. Shchegol'kov, O. G. Khudina, L. V. Anikina, Ya. V. Burgart, V. I. Saloutin // Pharmaceutical Chemistry Journal. - 2006. - Vol. 40, № 7. - P373-376. - Библиогр. : с. 376 (10 назв.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: 1,2,3-Triketone 2-(antipyrin-4-yl)hydrazones were synthesized via the azo-coupling reactions of 1,3-diketones with 2-(antipyrin-4-yl)diazonium chloride. The fluoroalkyl-containing hetarylhydrazone enters into cyclocondensation with hydrazines at the 1,3-dicarbonyl fragment to yield 3-tetrafluoroethyl derivatives of pyrazole. It was found that 1,2,3-triketone 2-(antipyrin-4-yl)hydrazones and N-(2-hydroxyethyl)-substituted pyrazole exhibit analgesic activity comparable with that of their structural analog analgin (metamizole sodium), but do not possess antipyretic properties. In contrast, N-phenyl-substituted pyrazole did not exhibit analgesic properties but produced a certain antipyretic effect four hours after pyrogenic administration. Fluoroalkyl-containing compounds are less toxic substances than nonfluorinated 2-(antipyrin-4-yl)hydrazone and analgin.

\\\\Expert2\\nbo\\Pharmaceutical Chemistry Journal\\2006, 40 (7), 373-376.pdf
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4.
Инвентарный номер: нет.
   


   
    5(6)-Fluoro-6(5)-R-benzofuroxans: synthesis and NMR 1H, 13C and 19F studies [Text] / S. K. Kotovskaya, S. A. Romanova, V. N. Charushin, M. I. Kodess, O. N. Chupakhin // Journal of Fluorine Chemistry. - 2004. - Vol. 125, № 3. - P421-428 : ил. - Библиогр.: с. 428 (14 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
5,6-DIFLUOROBENZOFUROXAN -- NUCLEOPHILIC SUBSTITUTION -- X-RAY CRYSTALLOGRAPHY
Аннотация: 5(6)-Fluoro-6(5)-substituted benzofuroxans were obtained by the reactions of 5,6-difluorobenzofuroxan with a number of nucleophiles, such as alkylamines, cycloalkylimines, sodium azide and sodium alkoxides. The features of tautomerism in the series of asymmetrical 5(6)-fluorobenzofuroxans in acetone solutions have been studied by 1H, 13C and 19F NMR.????

\\\\Expert2\\nbo\\Journal of Fluorine Chemistry\\2004, v.125, p.421.pdf
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5.
Инвентарный номер: нет.
   
   C 47


    Charushin, V. N.
    Nucleophilic substitutions in 6,7-difluoroquinoxalines [Text] / V. N. Charushin, G. A. Mokrushina, A. V. Tkachev // Journal of Fluorine Chemistry. - 2001. - Vol. 107, № 1. - P71-80. - Bibliogr. : p. 80 (16 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The reactions of 6,7-difluoroquinoxalines with a number of nucleophiles, such as cycloalkylimines, hydrazine, sodium hydroxide and alkoxides have been shown to result in substitution of either one or two fluoro atoms depending on the nature of nucleophiles

\\\\Expert2\\nbo\\Journal of Fluorine Chemistry\\2001.v.107. p. 71.pdf
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6.
Инвентарный номер: нет.
   
   A 10


   
    A new approach to incorporate the carboranyl fragment into 2,5-diazabicyclo[2.2.2]oct-2-enes [Electronic resource] / G. L. Rusinov, E. V. Verbitskiy, P. A. Slepukhin, O. N. Zabelina, I. N. Ganebnuikh, V. N. Kalinin, V. A. Ol'shevskaya // Mendeleev Communications. - 2009. - Vol. 19, № 5. - P243-245
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: 5-(Het)aryl-2,3-dicyano-1-ethylpyrazinium salts have been established to react with 9-allyl-ortho- and 9-allyl-meta-carboranes in the presence of sodium iodide into carboranylmethyl derivatives of 2,5-diazabicyclo[2.2.2]oct-2-ene

\\\\Expert2\\nbo\\Mendeleev Communications\\2009, v.19, p.243.pdf
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7.
Инвентарный номер: нет.
   
   R 30


   
    Reactions of radicals generated from 1-ethyl-1,4-diazinium salts: Addition to the C-C triple bond versus dimerization [Text] / G. L. Rusinov, E. V. Verbitskiy, P. A. Slepukhin, O. N. Zabelina, M. I. Kodess, M. A. Ezhikova, V. N. Charushin, O. N. Chupakhin // Heterocycles. - 2009. - Vol. 78, № 9. - P2315-2324
ББК 54
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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8.
Инвентарный номер: нет.
   
   N 76


   
    Non-natural nucleosides based on 1,2,4-triazolo[5,1-c][1,2,4]triazin-4(6H)- ones [Text] / S. L. Deev, T. S. Shestakova, V. L. Rusinov, O. N. Chupakhin // ARKIVOC. - 2009. - Vol. 2009, № 6. - P196-207
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Two regioselective methods for the synthesis of nucleosides in the series of 3-phenyl- and 3- ethoxycarbonyl-1,2,4-triazolo[5,1-c][1,2,4]triazin-4-ones were developed. The first route involves a Vorbruggen glycosylation reaction. The second one is based on condensation of 1,2,4- triazolo[5,1-c][1,2, 4]triazin-4-one sodium salts with protected 1-bromo-sugar derivatives

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9.
Инвентарный номер: нет.
   
   S 98


   
    Synthesis of carborane analogues of gamma-aminobutanoic acid [Text] / V. A. Ol'shevskaya, R. Ayuob, Z. G. Brechko, P. V. Petrovskii, G. L. Levit, V. P. Krasnov, V. N. Charushin, O. N. Chupakhin, V. N. Kalinin // Journal of Organometallic Chemistry. - 2005. - Vol. 690, № 11. - P2761-2765
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: General method for preparation of high yields of novel N-protected carborane amino acid derivatives, 3-acylamino-1-carboxymethyl-2-R-o-carboranes (R = H, Me, Ph), is reported. The synthesis starts from readily available 3-amino-o-carboranes and includes the protection of amino group, introduction of carboxymethyl function to the carbon atom of polyhedron via the metallation of carborane CH bond with sodium amide in liquid ammonia, and treatment of corresponding sodium carboranes with sodium bromoacetate. Deprotection of N-acylated carborane amino acids is studied in acidic media. Depending on the procedure employed, closo- or nido-carborane amino acids were obtained

\\\\Expert2\\nbo\\Journal of Organometallic Chemistry\\2005, v. 690, p.2761.pdf
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10.
Инвентарный номер: нет.
   
   F 70


   
    Fluorine-Containing Heterocycles. VII. Nucleophilic Substitution in 6,7-Difluoroquinoxalines [Electronic resource] / S. K. Kotovskaya, S. A. Romanova, V. N. Charushin, O. N. Chupakhin // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2002. - Vol. 38, № 7. - P1046-1052
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: For the purpose of biological screening, a number of new quinoxalines have been synthesized via fluorine replacement in 2,3-disubstituted 6,7-difluoroquinoxaline 1,4-dioxides and their deoxygenated derivatives by reactions with dialkylamines, sodium azide, and sodium methoxide

\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2002, 38 (7), 1046.pdf
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