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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.
   
   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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2.
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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3.
Инвентарный номер: нет.
   
   R 30


   
    Reaction of polyfluoro-3-chloro(bromo)-1-butenes with sodium hypohalites and properties of epoxides derived therefrom [Electronic resource] / A. Ya. Zapevalov, V. I. Filyakova, M. I. Kodess, V. I. Saloutin // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2003. - Vol. 39, № 7. - P919-923. - Bibliogr. : p. 923 (13 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
DERIVATIVE -- CARBON -- CESIUM -- EPOXIDE -- HYPOHALITES -- SODIUM HYPOHALITES
Аннотация: Epoxidation of 3-chloro(bromo)heptafluoro-1-butenes and 3,4-dichlorohexafluoro-1-butene with aqueous solutions of sodium hypohalites is accompanied by cleavage of the carbon skeleton at the double bond and formation of polyfluorocarboxylic acid sodium salts as by-products. 3-Chloro(bromo)-1,2- epoxyheptafluoro- and 3,4-dichloro-1,2-epoxyhexafluorobutanes were synthesized and subjected to isomerization into carbonyl compounds by the action of cesium fluoride or antimony pentafluoride.

\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2003, 39 (7), 919.pdf
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4.
Инвентарный номер: нет.
   
   S 98


   
    Synthesis of perfluoro- and 2-trifluoromethylpentafluoro-dihydrofurans and their epoxy derivatives [Electronic resource] / V. I. Filyakova, M. I. Kodess, A. Ya. Zapevalov, V. I. Saloutin // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2003. - Vol. 39, № 7. - P1010-1015. - Bibliogr. : p. 1015 (11 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
CESIUM -- EPOXIDE -- FURAN DERIVATIVE -- PERFLUORO COMPOUND
Аннотация: Perfluorotetrahydrofuran-2-carboxylic acid was converted through a series of transformations into perfluoro-2,3-dihydrofuran and perfluoro-2,5- dihydrofuran; likewise, from (2-perfluorotetrahydrofuryl)difluoroacetic acid 2-trifluoromethylpentafluoro-2,3-dihydrofuran was obtained. Perfluoro-2,3- dihydrofuran and 2-trifluoromethylpentafluoro-2,3-dihydrofuran underwent isomerization into perfluoro-2,5-dihydrofuran and 2-trifluoromethylpentafluoro- 2,5-dihydrofuran by the action of cesium fluoride. Treatment of perfluoro-2,5-dihydrofuran with SbF5 resulted in ring opening and formation of cis-perfluoro-2-butenoyl fluoride, while 2- trifluoromethylpentafluoro-2,3-dihydrofuran was converted into 2-trifluoromethylpentafluoro-2,5-dihydrofuran under the same conditions. Perfluoro-3,4-epoxytetrahydrofuran and 2-trifluoromethyl-3,4-epoxypenta- fluorotetrahydrofuran containing fused oxirane and tetrahydrofuran rings were synthesized by reactions of perfluoro-2,5-dihydrofuran and 2- trifluoromethylpentafluoro-2,5-dihydrofuran, respectively, with sodium hypochlorite.

\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2003, 39 (7), 1010.pdf
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5.
Инвентарный номер: нет.
   
   S 49


    Serebryakov, N. S.
    High-grade calcium-sodium metasomatism and corundum formation in the Precambrian Belomorian Mobile Belt, Karelia [Text] / N. S. Serebryakov, V. L. Rusinov // Doklady Earth Sciences. - 2004. - Vol. 395, № 3. - P389-393. - Bibliogr. : p. 393 (14 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
calcium -- corundum -- metamorphism -- metasomatism -- mobile belt -- Precambrian -- sodium
Аннотация: Study of the Khitoostrov, Varatsk, and other corundum occurrences in kyanite-garnet-biotite plagiogneisses of the Chupa section (Belomorian Mobile Belt) has revealed their association with products of low-alkaline Ca-Na metasomatism characterized by high PT conditions. Similar corundum-bearing rocks, which were also presumably formed during subalkaline metasomatism, are known in Tanzania, India, the United States, and other countries. This paper presents the first results of analysis of the corundum-forming Ca-Na metasomatism.

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6.
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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7.
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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8.
Инвентарный номер: нет.
   
   P 34


    Pavlov, A. M.
    Synthesis of beta-Fluoroalkyl-beta,beta-dimethoxy Ketones and beta-Fluoroalkyl-Beta-methoxy-beta,beta-enones [Electronic resource] / A. M. Pavlov, D. L. Chizhov, V. N. Charushin // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2005. - Vol. 41, № 10. - P1449-1451
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: alfa-Bromo-beta-fluoroalkyl-alfa,beta-enones react with sodium methoxide in methanol to give the corresponding beta-fluoroalkyl-beta,beta-dimethoxy ketones which eliminate methanol molecule to produce a mixture of E/Z-isomeric beta-fluoroalkyl-?-methoxyvinyl ketones, the Z isomer prevailing

\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2005, 41 (10), 1449.pdf
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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.
   
   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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