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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.
   


   
    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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2.
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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3.
Инвентарный номер: нет.
   
   G 33


    Gein, V. L.
    A novel four-component synthesis of ethyl 6-amino-4-aryl-5-cyano-2,4-dihydropyrano[2,3-c]pyrazole-3-carboxylates [Electronic resource] / V. L. Gein, T. M. Zamaraeva, P. A. Slepukhin. - [Б. м. : б. и.]. - Bibliogr. : p. 4528 (26 ref.). - Б. ц.
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
MULTICOMPONENT REACTION -- AROMATIC ALDEHYDES -- SODIUM DIETHYLOXALOACETATE
Аннотация: Ethyl 6-amino-4-aryl-5-cyano-2,4-dihydropyrano[2,3-с]pyrazole-3-carboxylates were synthesized via a four-component reaction of the sodium salt of diethyloxaloacetate, an aromatic aldehyde, hydrazine hydrate, and malononitrile. The products were obtained in moderate to high yields.

\\\\expert2\\nbo\\Tetrahedron Letters\\2014, v. 55, p. 4525.pdf
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4.
Инвентарный номер: нет.
   


   
    Alternative approaches to the synthesis of polyfluoroalkyl-containing 1-methyl-4-nitrosopyrazoles / N. A. Agafonova, Y. V. Burgart, N. A. Gerasimova [et al.] // Russian chemical bulletin. - 2021. - Vol. 70, № 6. - P1135–1140
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
4,4,4-TRIFL UORO-3,3-DIHYDROXY-2-(HYDROXYIMINO)BUTAN-1-ONES -- POLYFL UOROALKYL2-HYDROXYIMINO-1,3-DIKETONES -- 1-METHYL-4-NITROSOPYRAZOLES -- MYCOSTATIC ACTIVITY
Аннотация: We studied different approaches to the synthesis of polyfluoroalkyl-containing 1-methyl-4-nitrosopyrazoles, which are based on the cyclization of 4,4,4-trifluoro-3,3-dihydroxy-2-hydroxyimino-1-R-butan-1-ones or 2-hydroxyimino-1,3-diketones with methylhydrazine and on a one-pot sequential treatment of 1,3-diketones with sodium nitrite and methylhydrazine. It was found that the regioselectivity of the formation of 1-methyl-4-nitrosopyrazoles is affected by the steric factors of 1,3-dicarbonyl reagents. The study of the mycostatic effect of 4-nitrosopyrazoles showed that the introduction of a bulky polyfluoroalkyl or tert-butyl substituent leads to a decrease in their activity.

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5.
Инвентарный номер: нет.
   
   C 31


   
    Catalysts for enantioselective Biginelli reaction based on the composite silica-zirconia xerogels prepared using different zirconium sources [Electronic resource] / I. V. Krivtsov, Yu. A. Titova, M. V. Ilkaeva, V. V. Avdin, O. V. Fedorova, S. A. Khainakov, J. R. Garcia, G. L. Rusinov, V. N. Charushin // Journal of Sol-Gel Science and Technology . - 2014. - Vol.69, №2. - С. 448-452. - Bibliogr. : p. 452 (17 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
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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6.
Инвентарный номер: нет.
   
   G 33


    Gein, V. L.
    Diethyl oxalacetate sodium salt as a reagent to obtain functionalized spiro[indoline-3,4’-pyrano[2,3-c]pyrazoles] / V. L. Gein, T. M. Zamaraeva, P. A. Slepukhin // Tetrahedron Letters. - 2017. - Vol. 58. - С. 134-136. - Bibliogr. : p. 136 (27 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
3,4’-PYRANO[2,3-C]PYRAZOLES -- INDOLINE -- SODIUM SALT

\\\\expert2\\NBO\\Tetrahedron Letters\\2017, v. 58, p. 134-136.pdf
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7.
Инвентарный номер: нет.
   
   E 97


   
    Extraction of vanadium (IV) with DI-2-ethylhexylphosphoric acid [Электронный ресурс] / L. D. Kurbatova, P. A. Slepukhin, D. I. Kurbatov, E. V. Zabolotskaya // Phosphorus, Sulfur, and Silicon and the Related Elements. - 2012. - Vol.187, №9. - P1032-1037
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ELECTRONIC SPECTRA -- ESR SPECTROSCOPY -- VANADIUM
Аннотация: It was established with the use of electron and ESR spectroscopic methods that in the presence of sodium sulfate, the extraction of vanadium (IV) with di-2-ethylhexylphosphoric acid takes place by a cation-exchange mechanism giving rise to two complex compounds of vanadium (IV) oxocation with sulfuric and di-2-ethylhexylphosphoric acid anions. The vanadium (IV) oxocation sulfate complex extracted in the solid state was examined with X-ray structural analysis. It was shown that the vanadium (IV) oxocation sulfate complex trihydrate crystallizes in the centrosymmetrical space group to form dimers with bridging sulfate groups

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8.
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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9.
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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10.
Инвентарный номер: нет.
   
   N 76


   
    Non-Natural Nucleosides Based on 1,2,4-Triazolo[1,5-a]pyrimidin-7-ones [Text] / O. N. Chupakhin, T. S. Shestakova, L. E. Deev, O. S. Eltsov, V. L. Rusinov // Heterocycles. - 2010. - Vol. 80, № 2. - P1149-1163 : рис., табл.
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Two methods for synthesis of new nucleosides bearing 6-phenyl-1,2,4-triazolo[1,5-a]pyrimidin-7-ones as a base have been developed. The first one includes Vorbruggen glycosylation reaction. The second method, which is effective for synthesis of acyclic nucleosides, is based on the condensation between sodium salts of 6-phenyl-1,2,4-triazolo [1,5-a]pyrimidin-7-ones and 4-bromobuthyl acetate or (Z)-4-bromobut-2-en-1-yl acetate ??

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