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 Найдено в других БД:Труды сотрудников Института химии твердого тела УрО РАН (1)Публикации Чарушина В.Н. (15)
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1.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Boltacheva N. S., Slepukhin P. A., Pervova M. G., Rudina A. Kh., Chemagina I. V., Taibinov N. P., Filyakova V. I., Loboiko B. G., Charushin V. N.
Заглавие : Oximes of fluoroalkyl-containing 1,3-diketones: specific features of synthesis, analysis, and thermal stability
Место публикации : Russian chemical bulletin. - 2022. - Vol. 71, № 7. - С. 1464-1473
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Nitrosation of lithium 1,3-diketonates bearing fluoroalkyl and aryl (or hetaryl) substituents in positions 1 and 3 results in 3-polyfluoroalkyl-1,2,3-propanetrione 2-oximes (from this point on, oximes). Under similar conditions, lithium (Z)-1,1,1-trifluoro-4-oxo-4-(thien-2-yl)-2-buten-2-olate forms a hydration product of the corresponding oxime. Nitrosation of fluoroalkyl-containing lithium 1,3-diketonates is accompanied by retro-decomposition of the initial lithium 1,3-diketonates and the target oximes (or their hydration products) followed by oxidation and hydrolysis of the reaction products. Under the GC-MS conditions, the oximes undergo partial thermal decomposition to 2-aryl(hetaryl)-2-oxoethanenitriles. An analysis of solutions of the oximes in DMSO-d6 by 1H and 19F NMR spectroscopies revealed isomerization and hydration of these compounds. The temperature ranges of stability of the oximes were determined by thermogravimetric analysis and differential thermal analysis. The molecular and crystal structures of 4,4-difluoro-1-(4-methoxyphenyl)-1,2,3-butanetrione 2-oxime and 4,4,4-trifluoro-1-(thien-2-yl)-1,2,3-butanetrione 2-oxime were determined by X-ray diffraction.
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2.

Вид документа :
Шифр издания :
Автор(ы) : Boltacheva N. S., Slepukhin P. A., Pervova M. G., Rudina A. Kh., Chemagina I. V., Taibinov N. P., Filyakova V. I., Loboiko B. G., Charushin V. N.
Заглавие : Oximes of fluoroalkyl-containing 1,3-diketones: specific features of synthesis, analysis, and thermal stability
Место публикации : Russian chemical bulletin. - 2022. - Vol. 71, № 4. - С. 1464-1473
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Nitrosation of lithium 1,3-diketonates bearing fluoroalkyl and aryl (or hetaryl) substituents in positions 1 and 3 results in 3-polyfluoroalkyl-1,2,3-propanetrione 2-oximes (from this point on, oximes). Under similar conditions, lithium (Z)-1,1,1-trifluoro-4-oxo-4-(thien-2-yl)-2-buten-2-olate forms a hydration product of the corresponding oxime. Nitrosation of fluoroalkyl-containing lithium 1,3-diketonates is accompanied by retro-decomposition of the initial lithium 1,3-diketonates and the target oximes (or their hydration products) followed by oxidation and hydrolysis of the reaction products. Under the GC-MS conditions, the oximes undergo partial thermal decomposition to 2-aryl(hetaryl)-2-oxoethanenitriles. An analysis of solutions of the oximes in DMSO-d6 by 1H and 19F NMR spectroscopies revealed isomerization and hydration of these compounds. The temperature ranges of stability of the oximes were determined by thermogravimetric analysis and differential thermal analysis. The molecular and crystal structures of 4,4-difluoro-1-(4-methoxyphenyl)-1,2,3-butanetrione 2-oxime and 4,4,4-trifluoro-1-(thien-2-yl)-1,2,3-butanetrione 2-oxime were determined by X-ray diffraction.
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3.

Вид документа : Статья из журнала
Шифр издания : 54/S 98
Автор(ы) : Filyakova V. I., Slepukhin P. A., Boltacheva N. S., Letova E. B., Charushin V. N.
Заглавие : Synthesis of podands modified with thiosemicarbazide and fluoroalkyl(hydroxy)pyrazoline fragments
Место публикации : Russian Journal of General Chemistry. - 2017. - Vol. 87, № 5. - С. 957-962
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): podandes--x-ray diffraction analysis --acetic acid--organic acids
Аннотация: 1,8-Bis(diisothiosemicarbazido)-3,6-dioxaoctane have been synthesized by subsequent treatment of 2,2 -(ethylenedioxy)bisethylamine with carbon disulfide, sodium chloroacetate, and hydrazine hydrate. 1,8-Bis- (diisothiosemicarbazido)-3,6-dioxaoctane has reacted with lithium 1,1-difluoropenta-2,4-dionate in glacial acetic acid to yield 1,8-bis[5R*,5 R*(5-hydroxy-5-difluoromethyl-4,5-dihydro-3-methyl-1H-pyrazol-1-yl)-1-carbothioamido]-3,6-dioxaoctane. The molecular and crystal structure of the product has been determined by X-ray diffraction analysis.
\\\\Expert2\\NBO\\Russian Journal of General Chemistry\\2017 V 87 P957.pdf
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4.

Вид документа : Статья из журнала
Шифр издания : 54/O-57
Автор(ы) : Khudina O. G., Burgart Ya. V., Saloutin V. I., Kravchenko M. A.
Заглавие : One-pot synthesis of 5-fluoroalkyl-5-hydroxy-4-hydroxy-imino-1-isonicotinoyl-4,5-dihydro-1H-pyrazoles and their tuberculostatic activity [Electronic resource]
Место публикации : Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2011. - Vol. 47, № 6. - С. 904-909: ил.
Систем. требования: http://www.springerlink.com/content/r2w746253417x244/fulltext.pdf
Примечания : Bibliogr. : p. 909 (6 ref.). - 3.11.2011 г.
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: -Fluoroalkyl-5-hydroxy-4-hydroxyimino-1-isonicotinoyl-4,5-dihydro-1H-pyrazoles were synthesized via a one-pot procedure from polyfluoroalkyl-containing 1,3-diketones, sodium nitrite in acetic acid, and isoniazid. Acetylacetone gave rise to 3-hydroxyiminopentane-2,4-dione monoisonicotinoylhydrazone which underwent intramolecular cyclization to 5-hydroxy-4-hydroxyimino-1-isonicotinoyl-3,5-dimethyl-4,5-dihydro-1H-pyrazole on heating in ethanol. The synthesized compounds exhibited moderate tuberculostatic activity
\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2011, 47 (6), 904.pdf
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5.

Вид документа : Статья из журнала
Шифр издания : 54/С 38
Автор(ы) : Худина О. Г., Бургарт Я. В., Кравченко М. А., Салоутин В. И.
Заглавие : Синтез, строение и противотуберкулезная активность фторалкилсодержащих 3-гидроксиимино-1,5-бензадиазепинов
Параллельн. заглавия :Synthesis, structure, tuberculostatic activity and toxity of fluoroalkyl-containing 3-hydroxyimino-1,5-benzodiazepines
Место публикации : Химико-фармацевтический журнал. - 2011. - Т. 45, № 2. - С. 13-16
Примечания : Библиогр.: с. 16 (11 назв.)
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
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6.

Вид документа : Статья из журнала
Шифр издания : 54/S 98
Автор(ы) : Khudina O. G., Burgart Ya. V., Kravchenko M. A., Saloutin V. I.
Заглавие : Synthesis, structure, tuberculostatic activity, and toxicity of fluoroalkyl-containing 3-hydroxyimino-1,5-benzodiazepines [Electronic resource]
Место публикации : Pharmaceutical Chemistry Journal. - 2011. - Vol. 45, № 2. - С. 75-78
Систем. требования: http://www.springerlink.com/content/51748858760qu110/fulltext.pdf
Примечания : Bibliogr. : p. 78 (11 ref.). - 1.11.2011 г.
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: An improved method for the synthesis of fluoroalkyl-containing 3-hydroxyimino-1,5-benzodiazepines is proposed. For this, 3-hydroxyimines were obtained via nitrosation of 1,3-diketones and 3-oxoesters by tert-butylnitrite in diethylether under acid catalysis conditions and were reacted without isolation and further purification with ortho-phenylenediamine. It was found that polyfluoroalkyl-containing 3-hydroxyimino-1,5-benzodiazepin-2-ones and 2-hydroxy-3-hydroxyimino-2-trifluoromethyl-4-phenyl-1H-1,5-benzodiazepine possess high tuberculostatic activity comparable with that of isoniazide. Tests for acute toxicity of the trifluoromethylated heterocycles showed that they are less toxic than isoniazide
\\\\Expert2\\nbo\\Pharmaceutical Chemistry Journal\\2011, 45 (2), 75.pdf
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7.

Вид документа :
Шифр издания : 54/S 98
Автор(ы) : Ivanova A. E., Khudina O. G., Burgart Ya. V., Saloutin V. I., Kravchenko M. A.
Заглавие : Synthesis of polyfluoroalkyl-containing 1-(4-acetoxybutyl)- and 1-(4-hydroxybutyl)pyrazoles and their tuberculostatic activity
Место публикации : Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2011. - Vol.60, №11. - С. 2396-2400
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): synthesis--pyrazoles--tuberculostatic activity
Аннотация: Alkylation of polyfluoroalkyl-containing pyrazoles with 4-bromobutyl acetate in acetone in the presence of potassium carbonate leads to a mixture of isomeric 1-(4-acetoxybutyl)-3-fluoroalkyl- and 1-(4-acetoxybutyl)-5-fluoroalkylpyrazoles, which in a number of cases were successfully separated by HPLC. Deacylation in acidic medium with gaseous hydrogen chloride and in basic medium with gaseous ammonia leads to 1-(4-hydroxybutyl)pyrazoles, which manifest moderate tuberculostatic activity
\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2011, 60 (11), 2396-2400.pdf
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8.

Вид документа : Статья из журнала
Шифр издания : 54/C 51
Автор(ы) : Filyakova V. I., Chizhov D. L., Khmara E. F., Charushin V. N.
Заглавие : Chelates of fluoroalkyl containing enaminoketones [Electronic resource]
Место публикации : Russian Journal of General Chemistry. - 2010. - Vol. 80, № 1. - С. 190-201
Систем. требования: http://www.springerlink.com/content/322m7g149w614g50/fulltext.pdf
Примечания : 17.10.2011
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The structure and areas of practical application of fluoroalkyl containing enaminoketone chelates with d-metals are reviewed. Synthesis of ligands and the routes to the regioisomeric enaminoketones are also considered
\\\\Expert2\\nbo\\Russian Journal of General Chemistry\\2010, V. 80, N 1, p.190.pdf
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9.

Вид документа : Статья из журнала
Шифр издания : 54/S 98
Автор(ы) : Zlotin S. G., Kryshtal’ G. V., Zhdankina G. M., Ignatenko A. V., Burgart Ya. V., Saloutin V. I., Chupakhin O. N.
Заглавие : Synthesis of 2,6-bis(fluoroalkyl)-2,6-dihydroxytetrahydro-2H-pyran-3,5-dicarboxylates from aldehydes and fluorinated beta-oxo esters in the presence of ionic liquid-K2CO3 as catalytic system [Electronic resource]
Место публикации : Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2010. - Vol. 46, № 4. - С. 468-473: рис., табл.
Систем. требования: http://www.springerlink.com/content/hl6758qk37554530/fulltext.pdf
Примечания : Bibliogr. : p. 472-473 (35 ref.). - 1.11.2011 г.
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: An efficient procedure has been developed for the synthesis of 4-substituted 2,6-bis(fluoroalkyl)-2,6-dihydroxytetrahydro-2H-pyran-3,5-dicarboxylates by reactions of aldehydes with fluorine-containing ?-oxo esters in heterogeneous catalytic system 1-butyl-3-methylimidazolium tetrafluoroborate [bmim][BF4]-K2CO3 activated by ultrasound. The system retains its catalytic activity for three reaction cycles.
\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2010, 46 (4), 468-473.pdf
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10.

Вид документа : Статья из журнала
Шифр издания : 54/R 30
Автор(ы) : Filyakova V. I., Boltacheva N. S., Sevenard D. V., Charushin V. N.
Заглавие : Reactions of fluoroalkyl-containing lithium 1,3-diketonates with diaminoarenes and 2-aminobenzenethiol [Electronic resource]
Место публикации : Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2010. - Vol. 59, № 9. - С. 1791-1796
Систем. требования: http://www.springerlink.com/content/e741n52222250508/fulltext.pdf
Примечания : Bibliogr. : p. 1796 (25 ref.). - 28.10.2011 г.
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: 1,5-Benzo[b]- and 1,5-naphtho[2,3-b]diazepines were synthesized by the reaction of lithium 1,3-diketonates with 1,2-diaminobenzene and 2,3-diaminonaphthalene in an MeOH-AcOH-HCl mixture at 0 °C. The reactions of fluoroalkyl-containing lithium 1,3-diketonates with 1,2-diaminobenzene and 1,2-diamino-4,5-difluorobenzene under reflux in acetic acid afford 2-fluoroalkyl-containing benzimidazoles as the major products, whereas the reaction with 2-aminothiophenol gives 2-phenylbenzothiazole. The reactions of lithium diketonate containing the cyclohexane and cyclopentane moieties with 1,2-diaminoarenes and 2-aminobenzenethiol are accompanied by the opening of the carbocycle to form 2-(6-oxo-7,7,7-trifluoroheptyl)benzimidazole and 2-(5-oxo-6,6,6-trifluorohexyl)benzothiazole hydrates, respectively.
\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2010, 59 (9), 1791-1796.pdf
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