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1.

Вид документа : Статья из журнала
Шифр издания : 54/T 44
Автор(ы) : Sevenard D. V., Kazakova O., Lork E., Duelcks T., Chizhov D. L., Roeschenthaler G.-V.
Заглавие : The structure of 4-phenyl-2,6-bis(trifluoroacetyl)cyclohexanone and its dilithium salt in the crystal state, solution and gas phase
Место публикации : Journal of Molecular Structure. - 2007. - Vol. 846, № 1-3. - С. 87-96
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: 4-Phenyl-2,6-bis(trifluoroacetyl)cyclohexanone and its dilithium salt were synthesized starting from the commercially available 4-phenylcyclohexanone. With X-ray structure analysis of these compounds, for the first time the solid state structure determination for a fluorinated 1,3,5-triketone and an alkaline salt of 1,3,5-triketone was achieved. The subsequent multinuclear NMR and MS investigations revealed that in solution and gas phase, analogously to the crystal, both compounds exist predominantly in a highly delocalized double U-enol(ate) form. The carbonyl O…O distances in the dilithium salt were established to be considerably longer than the distances between oxygens of the parent 1,3,5-triketone, bonded by strong (short) resonance assisted hydrogen bonds. Among the 1,3,5-tricarbonyl compounds with known crystal structure, the entitled 1,3,5-triketone shows comparatively weak delocalization over the conjugated bis-enolone backbone.
\\\\Expert2\\nbo\\Journal of Molecular Structure\\2007, v.846, p.87.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/S 53
Автор(ы) : Shcherbakov K. V., Burgart Ya. V., Saloutin V. I.
Заглавие : Reactions of 5,6,7,8-tetrafluoro-4-hydroxycoumarin derivatives with benzylamine and aniline [Electronic resource]
Место публикации : Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2006. - Vol. 55, № 7. - С. 1215-1219
Систем. требования: http://www.springerlink.com/content/t5754161175p6lw1/fulltext.pdf
Примечания : 24.10.2011
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: 5,6,7,8-Tetrafluoro-4-hydroxycoumarin reacted with benzylamine under mild conditions to give a stable salt, while its refluxing with aniline or benzylamine in xylene afforded 5,6,7,8-tetrafluoro-4-phenyl(benzyl)aminocoumarins. Reactions of 3-acetyl(acetimidoyl)-5,6,7,8-tetrafluoro-4-hydroxycoumarins with benzylamine followed different pathways, depending on the solvent. Condensation at the acyl substituent can be accompanied by replacement of the F atom in position 7. 3-Acetylcoumarin formed a salt, while 3-acetimidoylcoumarin yielded a 7-monosubstituted product. 3-Acetyl(acetimidoyl)-5,6,7,8-tetrafluoro-4-hydroxycoumarins reacted with aniline to give only 5,6,7,8-tetrafluoro-4-hydroxy-3-(N-phenylacetimidoyl)coumarin
\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2006, 55 (7), 1215-1219.pdf
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4.

Вид документа : Статья из журнала
Шифр издания : 54/A 89
Автор(ы) : Bulygina L.A., Sokolov V. I., Utepova I. A., Rusinov V. L., Chupakhin O. N.
Заглавие : Asymmetric cyclopalladation of 6-ferrocenyl-2,2-bipyridine and 2-ferrocenyl-1,10-phenanthroline [Electronic resource]
Место публикации : Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2007. - Vol. 56, № 5. - С. 1080-1082
Систем. требования: http://www.springerlink.com/content/u1151h4716744737/fulltext.pdf
Примечания : 27.10.2011 г.
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Cyclopalladation of 6-ferrocenyl-2,2?-bipyridine and 2-ferrocenyl-1,10-phenanthroline in the presence of the N-acylamino acid salt as the asymmetric catalyst was performed. Some reactions of the resulting bicyclic palladium derivatives with tridentate (N,N,C) ligands were studied
\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2007, 56 (5), 1080-1082.pdf
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5.

Вид документа : Статья из журнала
Шифр издания : 54/C 74
Автор(ы) : Pestov A. V., Permyakov A. E., Slepukhin P. A., Neudachina L.K., Yatluk Yu. G.
Заглавие : Complexes of mono- and bis(2-carboxyethyl)-2-picolylamine: Synthesis and crystal and molecular structures [Electronic resource]
Место публикации : Russian Journal of Coordination Chemistry. - 2010. - Vol. 36, № 10. - С. 769-777
Систем. требования: http://www.springerlink.com/content/14q7223146v56q60/fulltext.pdf
Примечания : 18.10.2011
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: N-(2-Pyridylmethyl)iminodipropionic (I) and N-(2-pyridylmethyl)-3-aminopropionic acids (II) were obtained. A reaction of acid I with a Cu(II) salt gave a 2: 2 complex (III); a reaction of acid II with a Ni(II) salt yielded a 1 : 2 complex (IV). The crystal structures of these complexes were determined by X-ray diffraction. The abilities of compounds I and II to form complexes were compared with the literature data for other ligands containing the N-(2-pyridylmethyl)amino fragment. The structural features of the chelate complexes with 2-aminomethylpyridine derivatives were revealed, depending on the other substituents and the metal center
\\\\Expert2\\nbo\\Russian Journal of Coordination Chemistry\\2010, v. 36, N. 10, p.769.pdf
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6.

Вид документа : Статья из журнала
Шифр издания : 54/N 52
Автор(ы) : Tretyakov E. V., Utepova I. A., Varaksin M. V., Tolstikov S. E., Romanenko G. V., Bogomyakov A. S., Stass D. V., Ovcharenko V., Chupakhin O. N.
Заглавие : New approach to synthesis of nitronyl and imino nitroxides based on S(N)(H) methodology
Место публикации : ARKIVOC. - 2011. - Part 8. - С. 76-98: ил.
Примечания : Bibliogr. : p. 98 (36 ref.)
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: It is shown that S(N)(H) approach opens new possibilities in the synthesis of polyfunctional nitronyl and imino nitroxides. It is found that the interaction of 4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazol-3-oxide-1-oxyl lithium salt Li1 with 3,6-diaryl-1,2,4-triazines leads to formation of the corresponding triazines bearing nitronyl nitroxide or imino nitroxide substituent at position 5 of the heterocycle. The reaction of Li1 with pyridazine-N-oxide gives rise to nitroxide with buten-3-ynyl substituent 5. Spin-labeled 5 could be readily transformed by the use of 1,3-dipolar and nucleophilic addition reactions, as well as oxidative coupling, that gives a large group of new paramagnets: 2-(1H-pyrazol-5-yl)vinyl-, 2-ethynylcyclopropyl-, 2-(3-(ethoxycarbonyl) isoxazol-5-yl)vinyl-, 1-(pyrrolidin-1-yl)but-3-ynyl-substituted nitronyl nitroxide and a diradical -2,2'-((1E,7E)-octa-1,7-dien-3,5-diyne-1,8-diyl)bis(4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazol-3-oxide-1-oxyl). The new nitroxides were characterized by X-ray single crystal data, ESR and static magnetic susceptibility measurements
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7.

Вид документа : Статья из журнала
Шифр издания : 54/O-97
Автор(ы) : Lezina O. M., Rubtsova S.A., Belykh D.V., Slepukhin P. A., Kutchin A.V.
Заглавие : Oxidation of 1-methyl-1H-imidazole-2-thiol with chlorine dioxide
Место публикации : Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2013. - Vol.49, №1. - С. 112-118
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): chlorine dioxide --oxidation conditions--imidazolium chloride
Аннотация: Oxidation of 1-methyl-1H-imidazole-2-thiol with chlorine dioxide was performed for the first time, and the results were shown to depend on the oxidation conditions. Optimal conditions were found for the preparation of 1-methylimidazole-2-sulfonic acid, 2,2′-disulfanediylbis(1-methylimidazole) hydrochlorite, and 1-methyl-3-sulfo-3H-imidazolium chloride. A new salt, 4-methylanilinium 1-methyl-1H-imidazole-2-sulfonate, was isolated
\\\\Expert2\\NBO\\Russian Journal of Organic Chemistry\\2013, 49, (1), 112-118.pdf
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8.

Вид документа : Статья из журнала
Шифр издания : 54/S 98
Автор(ы) : Golovina O. V., Bakharev V. V., Golovin E. V., Parfenov V. E., Slepukhin P. A.
Заглавие : Synthesis and structure elucidation of novel 5-dinitromethyl-7-alkylamino-1,2,4-triazolo[4,3-a]-1,3,5-triazines
Место публикации : Tetrahedron Letters. - 2013. - Vol.54, №29. - С. 3858-3861
Примечания : Bibliogr. : p. 3861 (21 ref.)
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): structure elucidation --synthesis--1,3,5-triazines
Аннотация: Synthesis of the novel potassium salts of 5-dinitromethyl-7-alkylamino-1,2,4-triazolo[4,3-a]-1,3,5-triazines 9a–c was performed by heating (in DMSO) 2-alkylamino-4-ethoxymethylidenehydrazino-6-dinitromethyl-1,3,5-triazines 8a–c, obtained by treating of the corresponding 2-alkylamino-4-hydrazino-6-dinitromethyl-1,3,5-triazines 5a–c with orthoformic ester. 2-Alkylamino-4-hydrazino-6-dinitromethyl-1,3,5-triazines were obtained by a sequential substitution of the methoxy groups of the potassium salt of 2,4-dimethoxy-6-dinitromethyl-1,3,5-triazine with an alkylamine (dimethylamine, morpholine, pyrrolidine) and hydrazine
\\\\expert2\\NBO\\Tetrahedron Letters\\2013, v. 54, p. 3858.pdf
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9.

Вид документа : Статья из журнала
Шифр издания : 54/C 31
Автор(ы) : Krivtsov I. V., Titova Yu. A., Ilkaeva M. V., Avdin V. V., Fedorova O. V., Khainakov S. A., Garcia J. R., Rusinov G. L., Charushin V. N.
Заглавие : Catalysts for enantioselective Biginelli reaction based on the composite silica-zirconia xerogels prepared using different zirconium sources [Электронный ресурс]
Место публикации : Journal of Sol-Gel Science and Technology . - 2014. - Vol.69, №2. - С. 448-452
Систем. требования: http://download.springer.com/static/pdf/910/art%253A10.1007%252Fs10971-013-3242-z.pdf?auth66=1395304269_eb978aa91b5abc3459b7be6b8781338b&ext=.pdf
Примечания : Bibliogr. : p. 452 (17 ref.). - 18.03.2014
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): 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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10.

Вид документа : Статья из журнала
Шифр издания : 54/P 41
Автор(ы) : Bratskaya S.YU., Privar Y. O., Korjakova O. V., Mechaev A., Pestov A. V.
Заглавие : Pentacyanoferrate(II) complexes with chitosan
Место публикации : Polymer Engineering and Science . - 2013. - С. Article in Press
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): sodium aminoprusside --polymer ligand (chitosan)--x-ray diffraction
Аннотация: New organic-inorganic materials based on products of interaction between sodium aminoprusside and polymer ligand (chitosan) have been synthesized. The composition of the obtained materials was characterized using the element analysis and X-ray diffraction; the Fourier transform infrared (FT-IR) spectroscopy and Thermogravimetric analysis data were used to propose the structure of the formed complexes. It was established that ion and ligand exchange were the main reactions at interaction of sodium aminoprusside with water-soluble chitosan salts. The comparative estimation of the sorption capacity with respect to cesium ions was performed for the synthesized complexes. It has been shown that the complex of chitosan with pentacyanoferrate(II) in the form of cobalt(II) salt has higher distribution coefficient with respect to Cs+ ions, as compared to cobalt aminoprusside. The maximum sorption capacity value for Cs+ was evaluated from the sorption isotherm and found to be equal to 0.3 mmol/g
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