Центральная Научная Библиотека УрО РАН

Инвентарный номер: нет.

   O-57


    One-pot synthesis of 6H-pyrrolo[2,3-e[1,2,4]triazolo[1,5-a]pyrimidines on the basis of delta H-adducts of 6-Nitro[1,2,4]triazolo[1,5-a]pyrimidine with carbonyl compounds [Electronic resource] / E. B. Gorbunov, G. L. Rusinov, R. I. Ishmetova, V. N. Charushin, O. N. Chupakhin // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2008. - Vol. 44, № 1. - P128-132

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Aromatic, heteroaromatic, and aliphatic carbonyl compounds reacted with 6-nitro[1,2,4]triazolo[1,5-a]pyrimidine in the presence of a base to give stable ?H-adducts at C7. Reduction of the nitro group in the latter is accompanied by tandem autoaromatization of the azine ring and intramolecular cyclocondensation with formation of the corresponding 6H-pyrrolo[2,3-e][1,2,4]triazolo[1,5-a]pyrimidines

\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2008, 44 (1), 128.pdf
Найти похожие

Инвентарный номер: нет.

   K 46


    Kinetic resolution of heterocyclic amines by reaction with optically active acid chlorides. The effect of reaction conditions on the diastereoselectivity of acylation of (±)-3-methyl-2,3-dihydro-4H-1,4-benzoxazine [Electronic resource] / V. P. Krasnov, G. L. Levit, M. A. Koroleva, I. M. Bukrina, L. Sh. Sadretdinova, I. N. Andreeva, V. N. Charushin, O. N. Chupakhin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2004. - Vol. 53, № 6. - P1253-1256

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The influence of the reaction conditions (solvent, base) on the diastereoselectivity of acylation of (±)-3-methyl-2,3-dihydro-4H-1,4-benzoxazine with (S)-naproxen and N-tosyl-(S)-proline chlorides was studied. The highest diastereoselectivity was observed for the reaction carried out in benzene in the presence of aliphatic tertiary amines

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2004, 53 (6), 1253.pdf
Найти похожие

Инвентарный номер: нет.

   U 62


    Unusual heterocyclization of chalcone podands with 3-amino-1,2,4-triazole / I. G. Ovchinnikova, M. S. Valova, E. G. Matochkina, M. I. Kodess, A. A. Tumashov, P. A. Slepukhin, O. V. Fedorova, G. L. Rusinov, V. N. Charushin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2011. - Vol.60, №5. - С. 965-974

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
TEMPLATE SYNTHESIS -- CHALCONE PODAND -- CROWN ETHERS
Аннотация: A new type of intramolecular cyclization of 1,5-bis[2-(E-3-oxo-3-phenylprop-1-enyl)-phenoxy]-3-oxapentane with 3-aminotriazole promoted by potassium ions was discovered. A cascade mechanism for the formation of crownophane with 4,7-dihydro[1,2,4]triazolo[1,5-a]-pyrimidine fragment was suggested. Effects of oligooxyethylene fragment of the chalcone podand and acid-base catalysis on the selectivity of the cyclocondensation processes and degree of oxidation of triazolopyrimidine fragments were studied. The product structures were confirmed by IR, 1H and 13C NMR spectroscopy and X-ray diffraction study

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2011, 60 (5), 965-974.pdf
Найти похожие

Инвентарный номер: нет.

   C 98


    Cyclizations of N-alkyl-substituted azinium cations with bifunctional nucleophiles. 28. Orientation of the nucleophile in the reaction of quinoxalinium salts with indan-1,3-dione [Electronic resource] / G. M. Petrova, M. G. Ponizovskii, V. N. Charushin, G. G. Aleksandrov, E. O. Sidorov, O. N. Chupakhin // Chemistry of Heterocyclic Compounds. - 1990. - Vol. 26, № 5. - С. 565-572. - Bibliogr. : p. 572 (12 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
QUINOXALINUM SALTS -- C-NUCLEOPHILES -- AZINIUM CATIONS
Аннотация: In reactions with quinoxalinium salts in alcoholic-base media indan-1,3-dione acts as a C nucleophile, adding at the 2 or 3 position of the heterocycle to give the corresponding ylidene derivatives; attack by the nucleophile at the C(3) atom (the Β position relative to the quaternary nitrogen atom) is preceded by addition of alcohol at the a position. Dissociative substitution at the C(2) atom in 2-alkoxy-3-(1,3-dioxoindan-2-ylidene)-1,2,3,4-tetrahydroquinoxalines by another nucleophile makes it possible to regard lyate complexes as probable intermediates in cyclizations of 1,4-diazinium salts with dinucleophiles.

\\\\expert2\\nbo\\Chemistry of Heterocyclic Compounds\\1990, v.26, N 5, p.565.pdf
Найти похожие

Инвентарный номер: нет.

   P 49

    Pestov, A. V.
    Copper and nickel chelate complexes with polydentate N,O-ligands: structure and magnetic properties of polynuclear complexes [Electronic resource] / A. V. Pestov, P. A. Slepukhin, V. N. Charushin // Russian Chemical Reviews. - 2015. - Vol. 84, № 3. - С. 310-333. - Bibliogr. : p. 331-333(182 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
HYDROGEN-BONDED BRIDGES -- RAY CRYSTAL-STRUCTURE -- SCHIFF-BASE LIGAND
Аннотация: A comparative analysis of the structures of copper(II) and nickel(II) chelate complexes with N-substituted 2-aminoethanols, 3-aminopropan- 1 -ols, glycines and beta-alanines is performed. It is shown that tetradentate ligands based on 3-aminopropan- 1 -ol and P-alanine, sterically hindered 2-aminoethanol derivatives and tridentate enamino ketone derivatives tend to form oligonuclear copper(II) and nickel(II) complexes. Glycine derivatives do not provide the formation of oligonuclear copper(II) and nickel(II) complexes. The magnetic properties of a number of polynuclear complexes are compared.

\\\\expert2\\nbo\\Russian Chemical Reviews\\2015, V.84, N38, p. 310-333.pdf
Найти похожие

Инвентарный номер: нет.

   S 98


    Synthesis, crystal structures, and fluorescent properties of zinc(II) complexes with benzazino-2-carboxalidin-2-aminophenols [Electronic resource] / E. V. Nosova, T. V. Stupina, O. N. Chupakhin, M. S. Valova, P. A. Slepukhin, V. N. Charushin // Open Chemistry. - 2015. - Vol. 13, № 1. - С. 61-67. - Bibliogr. : p. 67 (26 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
BENZAZINE-2-CARBALDEHYDE -- O-AMINOPHENOL -- SCHIFF BASE
Аннотация: Complexes ZnL2 with novel fluorinated benzazines as tridentate ligands (HL = 6,7-difluoroquinoxalinand 6,7-difluoroquinolincarboxalidin-2-aminophenol) have been prepared. The photophisical properties of the ligands and the complexes has been studied.

\\\\expert2\\nbo\\Open Chemistry\\2015. V. 13(1). P. 61-67.pdf
Найти похожие

Инвентарный номер: нет.

   T 44


    The portable detector of nitro-explosives in vapor phase with new sensing elements on a base of pyrimidine scaffold / A. A. Baranova, K. O. Khokhlov, R. D. Chuvashov, E. V. Verbitskiy, E. M. Cheprakova, G. L. Rusinov, V. N. Charushin // Journal of Physics: Conference Series. - 2017. - Vol. 830. - P012159[1-6]

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
PORTABLE DETECTOR -- NITROEXPLOSIVE -- VAPOR PHASE -- SENSING ELEMENT -- PYRIMIDINE SCAFFOLD -- C(5) MONO(HETEROARYL) -- C(4) MONO(HETEROARYL) -- DI(HETEROARYL) SUBSTITUTED -- PYRIMIDINES -- PYRIMIDINE RING -- VOLATILE INTERFERENT -- NITROSCAN -- TEMPERATURE 293 K TO 298 K
Аннотация: In this paper, the new sensors based on the C(4) or/and C(5) mono(heteroaryl) and di(heteroaryl) substituted pyrimidines are described. The effect of different substituents in pyrimidine ring on the detection limits and selectivity for prepared sensors are explained. The results of detection towards various nitro-explosives and volatile interferents at room temperature with use of the portable detector “Nitroscan” are shown.

\\\\Expert2\\NBO\\Journal of Physics Conference series\\2017 v.830 p.012159.pdf
Найти похожие

Инвентарный номер: нет.



    Synthesis and physicochemical and catalytic properties of composites in the Sio2–Zro2 system / A. N. Murashkevich, O. A. Alisienok, E. S. Novik [et al.] // Inorganic materials. - 2020. - Vol. 56, № 4. - P430-436
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
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%.

Найти похожие

Инвентарный номер: нет.

   H 85


    HPLC separation of 2-aryloxycarboxylic acid enantiomers on chiral stationary phases / A. A. Tumashov, S. A. Vakarov, L. S. Sadretdinova [et al.] // Russian chemical bulletin. - 2021. - Vol. 70, № 5. - P900-907

ББК Г
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The possibility for separating enantiomers of a number of practically significant 2-aryloxycarboxylic acids was studied by normal- and reversed-phase HPLC on popular chiral stationary phases. The best separation parameters were achieved on the chiral phases with the polysaccharide base Chiralcel OD-H and Chiralpack AD under the normal-phase HPLC conditions. The (S)- and (R)-enantiomers of 2-(1-naphthyloxy)- and 2-(2-iodophenoxy)propionic acids with enantiomeric excess ee 99% were isolated using preparative chiral HPLC.

Найти похожие

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

Сиглы библиотек институтов и НЦ УрО РАН

© Международная Ассоциация пользователей и разработчиков электронных библиотек и новых информационных технологий
(Ассоциация ЭБНИТ)