Центральная Научная Библиотека УрО РАН

Вид документа : Статья из журнала
Шифр издания : 54/C 31
Автор(ы) : Fedorova O. V., Koryakova O. V., Valova M. S., Ovchinnikova I. G., Titova Yu. A., Rusinov G. L., Charushin V. N.
Заглавие : Catalytic effect of nanosized metal oxides on the Hantzsch reaction
Место публикации : Kinetics and Catalysis. - 2010. - Vol. 51, № 4. - С. 566-572
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The effect of nanosized copper and aluminum oxides, which have a higher sorption capacity than that of bulk samples, on the Hantzsch reaction was studied. The adsorption of starting benzaldehydes and ethyl acetoacetate on the surface of copper and aluminum nanooxides resulted in the activation of these molecules and accelerated the Hantzsch reaction. In addition, considerable activation of ammonia and intermediates (chalcone and enamine) on the surface of aluminum nanooxide facilitated an increase in the rate and selectivity of the process. The experimental results were used to develop a one-pot method for the preparation of nifedipine and nitrendipine
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Вид документа : Статья из журнала
Шифр издания : 54/F 70
Автор(ы) : Pokrovskii A. G., Il"ichyova E.A., Kotovskaya S. K., Romanova S. A., Charushin V. N., Chupakhin O. N.
Заглавие : Fluorinated derivatives of benz[4,5]imidazo[2,1-b][1,3]thiazoles are inhibitors of measles viruses
Место публикации : Doklady Akademii Nauk . - 2004. - Vol.398, №3. - С. 412-414
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): antiviral activity--cytotoxicity--fluorinated benzimidazoles
Аннотация: The results of in vitro anti-virus activity investigation for the new benzimidazoles (their synthesis is reported previously) are presented. The activity of the most active compound was studied in dependence of its introduction to the culture (before virus adsorption, simultaneously with virus, directly after virus adsorption, after 6 hours and after 1 day). Preliminary treatment of cells didn't protect them from further infecting; therewith the compound introduction simultaneously with virus or after infection caused no considerable effect on its anti-virus activity. The latter is attributed to blocking of late stages of measles virus reproduction - synthesis or arrangement of virus proteins
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Murashkevich A. N., Alisienok O. A., Novik E. S., Titova Y. A., Fedorova O. V., Rusinov G. L., Charushin V. N.
Заглавие : Synthesis and physicochemical and catalytic properties of composites in the Sio2–Zro2 system
Место публикации : Inorganic materials. - 2020. - Vol. 56, № 4. - С. 430-436
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): acid-base properties--catalysis--composite--silica--specific surface area--zirconia
Аннотация: Using coprecipitation, a sol–sol method, and molecular layering, we have synthesized SiO2–ZrO2 composites with SiO2 : ZrO2 ratios from 1 : 1 to 9 : 1 and a large specific surface area, which increases with growth silicon-containing component concentration. Using adsorption of Hammett indicators, we have assessed the concentration of acid–base centers in the pK range 1.3–9.6, which has been shown to vary from 68 to 160 μmol/g. Elemental analysis and IR spectroscopy data have demonstrated the presence of not only water but also nitrate ions and carbon dioxide on the surface of the samples. It has been shown that the use of nanoparticulate SiO2–ZrO2 oxides as heterogeneous catalysts—promoters for (2S,4R)-4-hydroxyprolyl-(S)-1-phenylethylamine trifluoroacetate, a chiral inducer in the asymmetric Biginelli reaction, makes it possible to raise ee (enantiomeric excess) from 39 to 68% and the reaction yield from 29 to 55%.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Chupakhin O. N., Musikhina A. A, Utepova I. A., Charushin V. N., Rempel A. A., Pryakhina V. I., Zyryanova E. Y., Pershina S. V., Yolshina L. A., Vovkotrub E. G.
Заглавие : Synthesis and properties of azines functionalized graphene with extremely high adsorptive ability to Eu3+ ions
Место публикации : Flatchem. - 2022. - Vol. 33. - С. 100348
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: In this work, a versatile synthetic protocol for obtaining of new promising carbon materials based on the C–C coupling of graphenide lithium species with azaaromatic compounds (1,10-phenanthroline, phenyl-1,2,5-oxadiazolo[3,4-b]pyrazine) has been suggested. It was shown that more electrophilic oxadiazolopyrazine gave the product with high degree of graphene functionalization and demonstrated non-isomorphic properties. At the same time, phenanthrolinyl graphene has less functionalization degree due to a lower electrophilicity of azine. However, the large size of pores between organic residues in phenanthrolinyl graphene allows adsorbing almost 10% of Eu3+. The mesurment of adsorption isotherm showed an extremely high affinity of phenanthrolinylgraphene to Eu (III) ions in netural or alkaline conditions, and the obtained hybrid material could work at least 5 sorption/desorption cycles. The structures of azine-graphene dyads were verified by complex of modern physicochemical analyses methods (the Raman spectroscopy, FTIR, XPS, SEM, EDS and TGA analyses).
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Сиглы отделов ЦНБ УрО РАН

  бр.ф. - Бронированный фонд

  бф - Научно-библиографический отдел

  БХЛ - Фонд художественной литературы

  ИИиА -Фонд исторической литературы в ЦНБ УрО РАН

  ИМЕТ -Отдел ЦНБ в Институте металлургии УрО РАН

  кх - Отдел фондов (книгохранениe)

  МБА - Межбиблиотечный абонемент

  мф - Методический фонд

  ок - Отдел научной каталогизации

  оку - Отдел комплектования и учета

  орф - Обменно-резервный фонд

  пф - Читальный зал деловой и патентной информации

  рк - Фонд редкой книги

  ч/з - Главный читальный зал

  эр - Зал электронных ресурсов

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