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 Найдено в других БД:Каталог книг и продолжающихся изданий (47)Каталог препринтов УрО РАН (1975 г. - ) (1)Нанотехнологии (11)Труды Института высокотемпературной электрохимии УрО РАН (48)Труды сотрудников Института органического синтеза УрО РАН (51)Труды сотрудников Института теплофизики УрО РАН (36)Труды сотрудников Института химии твердого тела УрО РАН (88)Расплавы (46)Публикации Черешнева В.А. (1)Каталог библиотеки ИЭРиЖ УрО РАН (6)
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Общее количество найденных документов : 13
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1.

Вид документа : Статья из журнала
Шифр издания : 54
Автор(ы) : Gorbunov E. B., Novikova R. K., Plekhanov P. V., Slepukhin P. A., Rusinov G. L., Rusinov V. L., Charushin V. N., Chupakhin O. N.
Заглавие : 2-Azido-5-nitropyrimidine: Synthesis, Molecular Structure, and Reactions with N-, O-, and S-Nucleophiles
Место публикации : Chemistry of Heterocyclic Compounds. - 2013. - Vol.49, №5. - С. 765-775
Примечания : Библиогр.: с. 775 (13 ref.)
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): synthesis--2-azido-5-nitropyrimidine--azido-tetrazole tautomerism
Аннотация: We describe the synthesis of 2-azido-5-nitropyrimidine and its azido-tetrazole tautomerism in various solvents and in the crystalline state. It was established that on interacting with N-nucleophiles the attack occurred at the C-2 carbon atom. The O- and S-nucleophiles attacked C-4 position of pyrimidine ring, resulting in tetrazole ring closure
\\\\expert2\\NBO\\Chemistry of Heterocyclic Compounds\\2013, v.49, N 5, p. 765-775.pdf
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2.

Вид документа : Статья из журнала
Шифр издания : 54/A 10
Автор(ы) : Chupakhin O. N., Rusinov G. L., Beresnev D. G., Charushin V. N., Neunhoeffer H.
Заглавие : A simple one pot synthesis of condensed 1,2,4-triazines by using the tandem AN-SNipso and SNH-SNipso reactions
Место публикации : Journal of Heterocyclic Chemistry. - 2001. - Т. 38, № 4. - С. 901-907
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: A new synthetic approach to condensed 1,2,4-triazines based on using the tandem AN-SNipso and SNH-SNipso reactions has been developed. 5-Methoxy-3-penyl-l,2,4 1,2,4-triazine and its N1-methyl quaternary salt were found to react with C,N-, C,O- and N,N?-bifunctional nucleophiles (m-phenylenediamine, resorcinol, semicarbazide and ureas) into triazacarbazoles, benzofuro[2,3-e][1,2,4]-triazines, and 6-azapurine derivatives. In all cases nucleophiles attack first the unsubstituted C-6 carbon of the triazine ring, while the final stage is replacement of the methoxy group affording cyclization products.
\\\\Cserver\\dist\\НБО\\Электронная библиотека_Библиогр1\\Journal of Heterocyclic Chemistry\\2001.v.38.p.901.Chupachin.pdf
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3.

Вид документа : Статья из журнала
Шифр издания : 54/A 67
Автор(ы) : Charushin V. N., Chernyshev A. I., Sorokin N. N., Chupakhin O. N.
Заглавие : Application of 1H and 13C NMR to the structural elucidation of tetrahydroquinoxalines condensed with five-membered heterocycles
Место публикации : Organic Magnetic Resonance. - 1984. - Vol. 22, № 12. - С. 775-778
Примечания : Bibliogr. : p. 778 (22 ref.)
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): n-methyltetrahydroquinoxalines--pyrrole--imidazole
Аннотация: 1H and 13C NMR spectral data for 21 N-methyltetrahydroquinoxalines annelated with furan, pyrrole, imidazole or thiazole rings are reported. Unambiguous assignments of the ring junction 13C resonances were made on the basis of selective decoupling experiments and with the aid of one-bond and long-range 13C–1H coupling constants. The effects of five-membered heterocycles on the 1H and 13C chemical shifts of the ring junction hydrogen and carbon atoms are considered. Values of one-bond 1J(CH) and vicinal 3J(HH) coupling constants between the ring junction protons are also discussed as a diagnostic means for structural elucidation of tetrahydroquinoxalines condensed with five-membered heterocycles.
\\\\expert2\\nbo\\Organic Magnetic Resonance\\1984. V. 22, N 12. P. 775.pdf
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4.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Charushin V. N., Titova Y. A., Milaeva E. R.
Заглавие : Chemical elements in medicine
Место публикации : Herald of the Russian academy of sciences. - 2020. - Vol. 90, № 2. - С. 229-238
Ключевые слова (''Своб.индексиров.''): beta-lactam antibiotics--boron neutron capture therapy--fluoroquinolones--heterocycles
Аннотация: A brief review of chemical elements, compounds from which find application in medicine, ranging from the commonly occurring organogenic elements (carbon, hydrogen, nitrogen, oxygen, sulfur, and phosphorus), composing the structure of proteins and nucleic acids of the cells of living organisms and determining the genetic transmission, to native rarely encountered organic fluorine compounds, synthetic derivatives of which have become firmly ingrained in the arsenal of modern pharmaceutical drugs, is given. Strong emphasis is put on metalloproteins, which play a significant role in the biochemistry of vitally essential processes, as well as metal compounds that are widely used in medicine. Of particular importance are the chemical elements and the isotopes, compounds of which are employed in nuclear medicine for diagnostics and treatment of a wide range of diseases, oncological and cardiovascular in particular.
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5.

Вид документа : Статья из журнала
Шифр издания : 54/C 98
Автор(ы) : Yufit D. S., Struchkov Yu. T., Drozd V. N., Charushin V. N., Baklykov V. G., Chupakhin O. N.
Заглавие : Cyclization of N-alkylazinium cations with bifunctional nucleophiles. 22. Crystal and molecular structure of tetrahydroquinoxaline condensed with the six-membered 1,3,4-thiadiazine ring [Электронный ресурс]
Место публикации : Chemistry of Heterocyclic Compounds. - 1987. - Vol. 23, № 5. - С. 583-587
Систем. требования: http://link.springer.com/article/10.1007/BF00476392
Примечания : Bibliogr. : p. 587 (19 ref.). - 22.10.15
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): x-ray diffraction --hydrogens--tetrahydropyrazine
Аннотация: X-ray diffraction examination of 4-acetyl-10-methyl-2-phenyl-1,4,4a,5,10,10a-hexahydro-1,3,4-thiadiazino[5,6-b]quinoxaline has shown that the 4a-H and 10a-H hydrogens attached to the carbon atoms common to both heterocycles are cis-oriented, as in the annelation of five-membered heterocycles to the tetrahydropyrazine ring, but in this case the torsion angle H(4a)C(4a)C(10a)H(10a) is much greater, having a value of 60‡
\\\\expert2\\nbo\\Chemistry of Heterocyclic Compounds\\1987, v.23, N 5, p. 583.pdf
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6.

Вид документа : Статья из журнала
Шифр издания : 54/I-55
Автор(ы) : Charushin V. N., Petrova G. M., Aleksandrov G. G., Egorova L. G., Chernyshev A. I., Sidorov E. O., Klyuev N. A., Chupakhin O. N.
Заглавие : Imidazoline ring cleavage in 1,3,6,10-tetraazatetracyclo-[7.3.1.02,7.06,13]trideca-4, 11-dienes, leading to the formation of diquinoxalino[1,2-a∶2′,3′-d]pyrrole derivatives [Электронный ресурс]
Место публикации : Chemistry of Heterocyclic Compounds. - 1987. - Vol. 23, № 4. - С. 426-435
Систем. требования: http://link.springer.com/article/10.1007/BF00546741
Примечания : Bibliogr. : p. 435 (9 ref.). - 22.10.15
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): carbon atom--alcohols--thiols
Аннотация: Dibenzo[d,k]-1,3,6,10-tetraazatetracyclo[7.3.1.02,7.06,13]trideca-4,11-dienes undergo addition reactions at the C(2) carbon atom with alcohols and thiols, accompanied by cleavage of the C-N bond of the imidazoline ring, to generate diquinoxalino[1,2-a∶2′,3′-d]pyrrole derivatives.
\\\\expert2\\nbo\\Chemistry of Heterocyclic Compounds\\1987, v.23, N 4, p. 426.pdf
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7.

Вид документа : Статья из журнала
Шифр издания : 54/C 47
Автор(ы) : Charushin V. N., Chupakhin O. N.
Заглавие : Nucleophilic aromatic substitution of hydrogen and related reactions [Electronic resource]
Место публикации : Mendeleev Communications. - 2007. - Vol. 17, № 5. - С. 249-254
Систем. требования: http://www.sciencedirect.com/science/article/pii/S0959943607001265
Примечания : 11.10.2011
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The classical concept of nucleophilic aromatic substitution (SNAripso) has been complemented with a new synthetic methodology (SNH), enabling one to build new carbon–carbon C(sp2)–C(sp3), C(sp2)–C(sp2) and C(sp2)–C(sp) or carbon–heteroatom C(sp2)–X (X is O, N, P, S, halogen) bonds through nucleophilic displacement of hydrogen in an aromatic ring.
\\\\Expert2\\nbo\\Mendeleev Communications\\2007, v.17, p.249.pdf
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8.

Вид документа : Статья из журнала
Шифр издания : 54/C 47
Автор(ы) : Charushin V. N., Chupakhin O. N.
Заглавие : S-N(H) methodology and new approaches to condensed heterocyclic systems
Место публикации : Pure and Applied Chemistry. - 2004. - Vol. 76, № 9. - С. 1621-1631: рис.
Примечания : Библиогр.: с. 1631 (70 ref.)
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The review curveys the reactions of electron-deficient azaaromatic compounds with mono- and bifunctional nucleophilies in which a nucleophilic attack at the unsubstituted CH carbon of an aromatic ring is one of the key steps.Intramolecular S(N)H reactions will also be considered as effective synthetic tools to obtain condensed heterocyclic systems
\\\\Cserver\\dist\\НБО\\Электронная библиотека_Библиогр1\\Pure and Applied Chemistry\\2004, v.76, N 9, p.1621.pdf
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9.

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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10.

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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