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Общее количество найденных документов : 9
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1.

Вид документа : Статья из сборника (однотомник)
Шифр издания : 54/C 47
Автор(ы) : Charushin V. N., Nosova E. V., Lipunova G. N.
Заглавие : Fluorinated derivatives of condensed heterocycles on the basis of (polyfluorobenzoyl)chlorides : доклад, тезисы доклада
Место публикации : XXth European Colloquium on Heterocyclic Chemistry, Stockholm,Sweden, 18-21 Aug. 2002 г. - Stockholm, 2002. - С. B:4
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
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2.

Вид документа :
Шифр издания : 54/C 73
Автор(ы) : Verbitskiy E. V., Cherprakova E. M., Slepukhin P. A., Kodess M. I., Ezhikova M. A., Pervova M. G., Rusinov G. L., Chupakhin O. N., Charushin V. N.
Заглавие : Combination of the Suzuki–Miyaura cross-coupling and nucleophilic aromatic substitution of hydrogen (HSN) reactions as a versatile route to pyrimidines bearing thiophene fragments
Место публикации : Tetrahedron. - 2012. - Vol.68, №27-28. - С. 5445-5452
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): suzuki–miyaura --cross-coupling --pyrimidines
Аннотация: It has been shown that combination of the Suzuki–Miyaura cross-coupling and nucleophilic aromatic substitution of hydrogen is a versatile method for the synthesis of 4-(thiophen-2-yl)-, 5-(thiophen-2-yl)-, and 4,5-di(thiophen-2-yl) substituted pyrimidines from the commercially available 5-bromopyrimidine. The HSN (AE)- and HSN (AO)-reactions of 5-bromopyrimidine with thiophene and 2-bromothiophene have been studied by gas–liquid chromatography/mass-spectrometry. The structures of intermediate σH-adducts, as well as thiophene-(thiophenyl)pyrimidine and bithiophene-(thiophenyl)pyrimidine dyads have first been established by X-ray crystallography analysis
\\\\Expert2\\nbo\\Tetrahedron\\2012, v. 68, p. 5445.pdf
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3.

Вид документа :
Шифр издания : 54/C 75
Автор(ы) : Verbitskiy E. V., Rusinov G. L., Charushin V. N., Chupakhin O. N., Cheprakova E. M., Slepukhin P. A., Pervova M. G., Kodess M. I.
Заглавие : Consecutive S-N(H) and Suzuki–Miyaura Cross-Coupling Reactions – an Efficient Synthetic Strategy to Pyrimidines Bearing Pyrrole and Indole Fragments
Место публикации : European Journal of Organic Chemistry. - 2012. - Vol. 2012, №33. - С. 6612-6621
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): synthetic methods--cross-cou­pling--nitrogen heterocycles
Аннотация: The combination of the Suzuki–Miyaura cross-coupling and nucleophilic aromatic substitution of hydrogen reactions is a versatile tool for the syntheses of 4-(1R-pyrrol-2-yl)- and 4-(1R-indol-3-yl)-5-(hetero)aryl-substituted pyrimidines from commercially available 5-bromopyrimidine. The SNH [AE, (addition–elimination)] and SNH [AO, (addition–oxidation)] reactions of 5-bromopyrimidine with pyrroles and indoles were studied by gas chromatography–mass spectrometry. The structures of the intermediate σH adducts as well as the pyrrole-(hetero)arylpyrimidine and indole-(hetero)arylpyrimidine dyads were established for the first time by X-ray crystal structure analysis
\\\\Expert2\\nbo\\European Journal of Organic Chemistry\\2012, p.6612.pdf
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4.

Вид документа : Статья из журнала
Шифр издания : 54/C 78
Автор(ы) : Kuznetsova O. A., Khmara E. F., Filyakova V. I., Uimin M. A., Ermakov A. E., Rhee C. K., Charushin V. N.
Заглавие : Copper and Copper Oxides Nanopowders in the Oxidative Condensations of Phenylacetylene and Tert-Butylacetylene [Electronic resource]
Место публикации : Russian Journal of General Chemistry. - 2007. - Vol. 77, № 3. - С. 404-408
Систем. требования: http://www.springerlink.com/content/q63v45313150n82x/fulltext.pdf
Примечания : Библиогр. : с. 408 (12 назв.). - 17.10.2011
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Transformations of phenylacetylene and tert-butylacetylene in the presence of copper and copper oxide (Cusub2/subO, CuO) nanopowders prepared by gas-phase condensation of copper in argon were studied. The reaction of phenylacetylene with copper oxide nanopowders having different phase compositions in the absence of a solvent at room temperature resulted in oxidative condensation of phenylacetylene and complex formation of the condensation product. The complex undergoes decomposition by the action of acids, bases, and compounds capable of forming complexes. According to the X-ray diffraction data, one of the products is a new “parquet” modification of diphenyldiacetylene. Under analogous conditions, tert-butylacetylene gave rise to a complex mixture of products among which di- tert-butyldiacetylene was identified by gas chromatography-mass spectrometry. No copper complexes with the tert-butylacetylene condensation products were detected.
\\\\expert2\\nbo\\Russian Journal of General Chemistry\\2007, V. 77, N 3, p.404.pdf
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5.

Вид документа : Статья из журнала
Шифр издания : 54/M 38
Автор(ы) : Klyuev N. A., Baklykov V. G., Charushin V. N., Chupakhin O. N.
Заглавие : Mass spectrometry of nitrogenous heterocycles. 1. Mass spectrometric evaluation of stability of tetrahydropyrazines annelated to five- and six-membered heterocycles [Электронный ресурс]
Место публикации : Chemistry of Heterocyclic Compounds. - 1989. - Vol. 25, № 4. - С. 444-450
Систем. требования: http://link.springer.com/article/10.1007/BF00480763
Примечания : Bibliogr. : p. 450 (18 ref.). - 24.10.15
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): tetrahydropyrazines--dissociation reaction
Аннотация: Based on a study of electron impact mass spectra of a large number of tetrahydropyrazines, which are joined to five- and six-membered heterocyclic and carbocyclic residues, the trends which characterize the stability of these condensed systems are found. The proposed criteria can be used for evaluation of the chemical stability of these compounds, for example, their propensity toward the reverse dissociation reaction.
\\\\expert2\\nbo\\Chemistry of Heterocyclic Compounds\\1989, v.25, N 4, p. 444.pdf
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6.

Вид документа : Статья из журнала
Шифр издания : 54/M 65
Автор(ы) : Verbitskiy E. V., Cheprakova E. M., Zhilina E. F., Kodess M. I., Ezhikova M. A., Pervova M. G., Slepukhin P. A., Charushin V. N., Chupakhin O. N.
Заглавие : Microwave-assisted palladium-catalyzed C–C coupling versus nucleophilic aromatic substitution of hydrogen (SNH) in 5-bromopyrimidine by action of bithiophene and its analogues
Место публикации : Tetrahedron. - 2013. - Vol.69, №25. - С. 5164-5172
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): c–h bond activations--pyrimidines--palladium
Аннотация: 5-Bromopyrimidine reacts with 2,2′-bithiophene, [2,2′:5′,2″]terthiophene and 2-phenylthiophene in the presence of a palladium catalyst to give 5-(het)aryl substituted pyrimidines due to the palladium-catalyzed aryl–aryl C–C coupling. However 5-bromo-4-(het)aryl-pyrimidines have been prepared from the same starting materials through the SNH-reaction catalyzed by a Lewis acid. Conditions for both types of reactions were optimized. All components of the reaction mixtures, including by-products, have been elucidated by gas–liquid chromatography/mass-spectrometry. Evidence for the structure of 4- and 5-bithiophenyl-substituted pyrimidines has first been obtained by means of X-ray crystallography analysis. Molecular orbital calculations (TDDFT), as well as the redox and optical measurements for all new compounds have also been performed
\\\\Expert2\\NBO\\Tetrahedron\\2013, v. 68, p. 5164.pdf
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7.

Вид документа : Статья из журнала
Шифр издания : 54/N 57
Автор(ы) : Makarycheva-Mikhailova A. V., Gushchin P. V., Kopylovich M. N., Ganebnuikh I. N., Charushin V. N., Haukka M. P., Armando J. L., Kukushkin V. Yu.
Заглавие : Ni(II)-Mediated nitrosation of oximes bearing an alfa-CH2 group
Место публикации : Inorganic Chemistry Communications. - 2006. - Vol. 9, № 8. - С. 869-871
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Heating of NiCl2 · 6H2O with 10-fold excess of an oxime having an CH2 group (1–4) at 100 °C for 1 day in air leads to the formation of the dioxime/ato complexes [Ni(dioxime/ato)2] (5–8) formed due to a novel type of metal-mediated nitrosation. Compounds 5–8 were characterized by elemental analyses, FAB (5–7) or APCI (8) mass-spectrometry, IR, 1H and 13C{1H} spectroscopies (for 8), and X-ray structural study has been performed for 5 and 8; the corresponding ketones (9–12) were identified by LC–MS.
\\\\Expert2\\nbo\\Inorganic Chemistry Communications\\2006, v.9, p.869.pdf
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8.

Вид документа : Статья из журнала
Шифр издания : 54/R 30
Автор(ы) : Verbitskiy E. V., Cheprakova E. M., Slepukhin P. A., Pervova M. G., Samorukova M. A., Zabelina O. N., Rusinov G. L., Charushin V. N.
Заглавие : Reactions of 5-(het)aryl-1-ethyl-2(1H )-pyrazinones with terminal arylacetylenes promoted by microwave radiation [Electronic resource]
Место публикации : Chemistry of Heterocyclic Compounds. - 2011. - Vol. 47, № 6. - С. 710-718
Систем. требования: http://www.springerlink.com/content/f1057834t2615065/fulltext.pdf
Примечания : Bibliogr. : p. 718 (13 ref.). - 13.01.2012
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): arylacetylenes--microwave radiation --ionic liquid
Аннотация: The reaction of 5-(het)aryl-1-ethyl-2(1H)-pyrazinones with terminal arylacetylenes, leading to a mixture of two isomeric 4-aryl- and 5-aryl-substituted 2(1H)-pyridones has been investigated. The regioselectivity of this reaction has been shown on the basis of reaction mixtures study by chromato-mass spectrometry. A crystallographic investigation of the synthesized 2(1H)-pyridones and also a forecast of their potential biological activity have been carried out
\\\\Expert2\\nbo\\Chemistry of Heterocyclic Compounds\\2011, v.47, N 6, p.710-718.pdf
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9.

Вид документа : Статья из журнала
Шифр издания : 54/S 98
Автор(ы) : Nosova E. V., Moshkina T. N., Lipunova G. N., Baklanova I. V., Slepukhin P. A., Charushin V. N.
Заглавие : Synthesis, structure and photoluminescent properties of BF2 and BPh2 complexes with N,O-benzazine ligands [Электронный ресурс]
Место публикации : Journal of Fluorine Chemistry. - 2015. - Vol. 175. - С. 145-151
Систем. требования: http://apps.webofknowledge.com/
Примечания : Bibliogr. : p. 150-151 (29 ref.). - 18.01.16
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): n,o-bidentate ligands--bph2 complexes--bf2 complexes
Аннотация: Novel N,O-bidentate BF2 and BPh2 complexes have been prepared in good to excellent yields through coordination of 8-hydroxy-2-methylquinolines and 2-(2-hydroxyphenyl)-3H-quinazolin-4-ones with boron trifluoride etherate or triphenylborane under mild conditions. All complexes have been characterized by H-1, B-11 and F-19 NMR, mass-spectrometry and X-ray crystallography data. Some complexes have been found to exhibit a significant fluore.scence in acetonitrile solutions. Electronic and site effects of substituents in both heterocyclic and phenol fragments proved to have a profound impact on quantum yields.
\\\\expert2\\nbo\\Journal of Fluorine Chemistry\\2015,V.175, p.145-151.pdf
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