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Публикации Черешнева В.А.
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 Найдено в других БД:Каталог книг и продолжающихся изданий (2)Труды Института высокотемпературной электрохимии УрО РАН (1)Труды сотрудников Института теплофизики УрО РАН (8)Труды сотрудников Института химии твердого тела УрО РАН (1)Публикации Чарушина В.Н. (7)
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Поисковый запрос: (<.>K=METHANOL<.>)
Общее количество найденных документов : 20
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 1-10    11-20  
1.
Инвентарный номер: нет.
   

   
    2,3-Epoxyperfluoro-2-methylpentane in reactions with urea and thiourea [Electronic resource] / T. I. Filyakova, V. I. Saloutin, A. Ya. Zapevalov, P. A. Slepukhin, M. I. Kodess, V. I. Saloutin // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2011. - Vol. 47, № 5. - P650-658 : рис., табл. - Bibliogr. : p. 658 (24 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: 2,3-Epoxyperfluoro-2-methylpentane reacts with thiourea in protic (methanol, 2-propanol) and aprotic (dioxane) solvents, and also with urea in acetonitrile affording unexpected products: 1-(2,2,3,3,3-pentafluoropropionyl)-2-(2,2,2-trifluoro-1-trifluoro-methylethyl)isothiourea, and 1-(2,2,3,3,3-pentafluoropropionyl)-3-(2,2,2-trifluoro-1-trifluoro-methylethyl)urea respectively that result from the rearrangement of the intermediately formed ketone in the process of the intramolecular “haloform” cleavage. At the same time in dioxane the 2,3-epoxyperfluoro-2-methylpentane reacts with urea with the formation of a heterocyclic compound, 2-amino-4-pentafluoroethyl-5,5-bis(trifluoromethyl)-4,5-dihydrooxazol-4-ol. From 1-(2,2,3,3,3-pentafluoropropionyl)-2-(2,2,2-trifluoro-1-trifluoromethylethyl)isothiourea and Cu(OAc)2 a stable fluorine-containing chelate complex was obtained

\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2011, 47 (5), 650-658.pdf
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2.
Инвентарный номер: нет.
   

   
    A BF3-mediated C–H/C–Li coupling of 1,3,7-triazapyrene with 2-thienyllithium in the design of push–pull fluorophores and chemosensors for nitroaromatics / I. A. Lavrinchenko, T. D. Moseev, M. V. Varaksin [et al.] // New Journal of Chemistry. - 2022. - Vol. 46, № 11. - P5121-5128
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Mono- and bis-2-thienyl-substituted 1,3,7-triazapyrenes have been synthesized for the first time via BF3-mediated C–H/C–Li coupling of 1,3,7-triazapyrene with 2-thienyllithium in 33 and 51% yields, respectively. The photophysical properties of these polycyclic azaaromatics have been studied, with emission in the range of 450–500 nm and fluorescence quantum yields of up to 99% in methanol solutions being revealed. The turn-off chemosensing properties of 2-thienyl-substituted 1,3,7-triazapyrenes for the selective detection of nitroaromatics have also been assessed; in particular, the quenching constants according to the Stern–Volmer model, the quenching sphere radius according to the Perrin model, the detection limit and the quenching efficiency have been determined. In particular, 6,8-bis-(thiopen-2-yl)-1,3,7-triazapyrene, characterized by 10 times the quenching constant and limit of detection (LOD) compared to the mono-substituted analog, can be considered as the most promising chemosensor for determining nitroaromatic compounds. DFT calculations confirm the presence of intramolecular charge transfer (ICT) effects in the case of the obtained fluorophores and clarify the quenching mechanism for nitroaromatics.

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3.
Инвентарный номер: нет.
   
   A 53

   
    Analysis of the Gas Phase Oxidation Methanol at Presence of the Catalyst on Base of FeMoO4 / S. Y. Men'shikov, A. A. Markov, M. S. Valova, V. A. Vazhenin, A. A. Subbotina, J. V. Trubnikova // Уральский научный форум "Современные проблемы органической химии". XVII Молодежная школа-конф. по органической химии, Екатернинбург, 8-12 июня 2014 г. : сб. тез. - Екатеринбург, 2014. - С. 174
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
METHANOL -- FeMoO4 -- MOLYBDENUM-OXIDE

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4.
Инвентарный номер: нет.
   

   
    Biocompatible silica-polyethylene glycol-based composites for immobilization of microbial cells by sol-gel synthesis / D. G. Lavrova, A. N. Zvonarev, V. A. Alferov [et al.] // Polymers. - 2023. - Т. 15, № 2. - P458
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ORMOSIL COMPOSITES -- BIOFILTER -- BIOCATALYSTS
Аннотация: Biocatalysts based on the methylotrophic yeast Ogataea polymorpha VKM Y-2559 immobilized in polymer-based nanocomposites for the treatment of methanol-containing wastewater were developed. The organosilica composites with different matrix-to-filler ratios derived from TEOS/MTES in the presence of PEG (SPEG-composite) and from silicon-polyethylene glycol (STPEG-composite) differ in the structure of the silicate phase and its distribution in the composite matrix. Methods of fluorescent and scanning microscopy first confirmed the formation of an organosilica shell around living yeast cells during sol-gel bio-STPEG-composite synthesis. Biosensors based on the yeast cells immobilized in STPEG- and SPEG-composites are characterized by effective operation: the coefficient of sensitivity is 0.85 ± 0.07 mgO2 × min−1 × mmol−1 and 0.87 ± 0.05 mgO2 × min−1 × mmol−1, and the long-term stability is 10 and 15 days, respectively. The encapsulated microbial cells are protected from UV radiation and the toxic action of heavy metal ions. Biofilters based on the developed biocatalysts are characterized by high effectiveness in the utilization of methanol-rich wastewater—their oxidative power reached 900 gO2/(m3 × cycle), and their purification degree was up to 60%.

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5.
Инвентарный номер: нет.
   
   P 93

    Prokhorov, A. M.
    CuCl2 induced reactions of 6-ethynyl- and 6-cyano-5-aryl-2,2-bipyridines with various N- and O-nucleophiles in comparison with the reactions of relative 1,2,4-triazines [Text] / A. M. Prokhorov, P. A. Slepukhin, D. N. Kozhevnikov // Journal of Organometallic Chemistry. - 2008. - Vol. 693, № 10. - P1886-1894
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Meanwhile 5-aryl-6-cyano-2,2-bipyridines are very stable towards various nucleophiles, addition copper(II) chloride to the reactional mixture facilitates nucleophilic addition to the cyano group dramatically. The cyanobipyridines react easily with water, methanol, ethanolamine in the presence of CuCl2 yielding well-crystallized complexes containing carboxylates, carboximidates or carboxamidines as ligands. 5-Cyano-1,2,4-triazines are more active in the reactions due to higher electron-withdrawing properties of this heterocycle. Due to the same reason acetylene moiety of 5-ethynyl-3-pyridyl-1,2,4-triazine adds water quite easily but in the presence of copper chloride as well

\\\\Expert2\\nbo\\Journal of Organometallic Chemistry\\2008, v.693, p.1886.pdf
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6.
Инвентарный номер: нет.
   
   E 27

   
    Efficient and scalable synthesis of 3-(polyfluoroacyl)pyruvaldehydes dimethyl acetals: A novel functionalized fluorinated building-block / D. L. Chizhov, D. V. Belyaev, D. S. Yachevskii, Danil S., G. L. Rusinov, O. N. Chupakhin, V. N. Charushin // Journal of Fluorine Chemistry. - 2017. - Vol. 199. - P39-45
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
FLUORINATED 1,3-DIKETONES -- ACETALS -- CLAISEN CONDENSATION -- CALCIUM HYDRIDE -- 3-(POLYFLUORACYL)PYRUVALDEHYDES -- PYRAZOLE-1h-3- CARBALDEHYDES
Аннотация: An efficient approach for the synthesis of 3-(polyfluoroacyl)pyruvaldehydes dimethyl acetals (1,1-dimethoxy-4-polyfluoroalkyl-butan-2,4-dions) from 1,1-dimethoxyacetone and polyfluorinated carboxylic acid esters has been developed. The procedure includes the Claisen type condensation of the starting materials by means of calcium hydride in methanol, followed by isolation of copper complexes of the corresponding diketones and their destroying with disodium EDTA. A simple synthesis of 5(3)-(polyfluoroalkyl)-1H-pyrazole-3(5)-carbaldehydes and their acetals is also presented.

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7.
Инвентарный номер: нет.
   

   
    Expanding 1,2,4-triketone toolbox for use as fluorinated building blocks in the synthesis of pyrazoles, pyridazinones and β-diketohydrazones / Y. O. Edilova, Y. V. Burgart, V. I. Saloutin [et al.] // Journal of fluorine chemistry. - 2022. - Vol. 253. - Ст. 109932
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Fluorinated lithium β-diketonates bearing a methyl acetal group behave in the condensation reactions with hydrazines as trielectrophilic building blocks for the preparation of pyrazoles, pyridazinones and β-diketohydrazones. For the first time, solvent-induced regioisomeric and heterocyclic ring size-controlled formation was observed for 1,2,4-triketone analogues. Fluoroalkylated acetyl NH-pyrazoles or substituted 5-RF-pyrazoles were obtained from the acid-catalyzed cyclocondensation of lithium β-diketonates with (aryl)hydrazines in ethanol. In methanol solvent acetyl-containing 3-CF3-pyrazoles were isolated because of inverse nucleophilic attack of arylhydrazines. The use of aprotic acetonitrile in the condensation resulted in regioselective trifluorinated pyridazinones and fluorinated β-diketohydrazones formation via initial acetal fragment interaction with N,N-dinucleophile.

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8.
Инвентарный номер: нет.
   
   B 74

    Boltacheva, N. S.
    Fluoroalkyl-Containing Lithium 1,3-Diketonates in Reactions with Amines and Ammonium Salts [Electronic resource] / N. S. Boltacheva, T. I. Filyakova, V. N. Charushin // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2005. - Vol. 41, № 10. - P1452-1457
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Reactions of fluoroalkyl-containing lithium 1,3-diketonates with amines or ammonium salts in glacial acetic acid or methanol at 20°C provide an efficient synthetic route to fluoroalkyl-containing ?-amino-vinyl ketones. Depending on the conditions, reactions of lithium diketonates with 1-aminonaphthalene lead to formation of both ?-aminovinyl ketones and cyclocondensation products, benzo[h]quinolines. The latter can be obtained in one step without isolation of ?-aminovinyl ketones

\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2005, 41 (10), 1452.pdf
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9.
Инвентарный номер: нет.
   

   
    Functionalized trifluoromethyl-containing lithium β-diketonate in the synthesis of homo- and heteronuclear complexes of rare-earth metals / Yu. S. Kudyakova, P. A. Slepukhin, I. N. Ganebnykh [и др.] // Russian Journal of Coordination Chemistry. - 2021. - Vol. 47, № 4. - P280-295
Кл.слова (ненормированные):
β-DIKETONATES -- LANTHANIDES -- 19F NMR SPECTROSCOPY -- MASS SPECTROMETRY
Аннотация: The reactions of functionalized lithium CF3-β-diketonate (LiL) with trivalent rare-earth metal salts in methanol afford homobinuclear and heterobi(tri)nuclear complexes depending on the nature of the transition metal and anion (chlorides, nitrates, and acetates). In the cases of lanthanum(III) and cerium(III), homoleptic complexes [(LnL3)2] are isolated (CIF files CCDC nos. 2031097 (Ia) and 2031102 (Ib)). The reaction of LiL with praseodymium(III) nitrate gives the new trimetallic structure [(LiPrL3)(LiL)(NO3)(H2O)2] (CIF file CCDC no. 2031103 (II)), and the replacement of nitrate by chloride gives [(PrL3)(LiL)(H2O)] (CIF file CCDC no. 2031104 (IIIa)). Regardless of the nature of the anion of the salt in the series from neodymium(III) to ytterbium(III) and yttrium(III), Ln–Li β-diketonates [(LnL3)(LiL)(solv)] (solv is H2O and MeOH) are formed, and their structures are characterized by X-ray structure analysis (CIF files CCDC nos. 2031099 (IIIb), 2031100 (IIIc), 2031098 (IVa), 2031096 (IVc), 2031094 (IVf), 2031101 (IVg), and 2031095 (IVh)). The equilibrium of the diketonate isomeric forms in a solution of deuterated dimethyl sulfoxide is studied by 19F NMR spectroscopy, and the qualitative composition of the polynuclear complexes is determined by mass spectrometry.

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10.
Инвентарный номер: нет.
   
   M 85

   
    Morphology and Piezoelectric Properties of Diphenylalanine Microcrystals Grown from Methanol-Water Solution / P. S. Zelenovskiy, V. Ya. Shur, A. S. Nuraeva, S. G. Vasilev, D. S. Vasileva, D. O. Alikin, D. S. Chezganov, V. P. Krasnov, A. L. Kholkin // Ferroelectrics. - 2015. - Vol. 475, № 1. - С. 127-134
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
MORPHOLOGY PROPERTIES -- PIEZOELECTRIC PROPERTIES -- METHANOL-WATER SOLUTION

\\\\expert2\\NBO\\Ferroelectrics\\2015, v.475, N 1, p.127-134.pdf
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