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 Найдено в других БД:Каталог книг и продолжающихся изданий (9)Труды Института высокотемпературной электрохимии УрО РАН (16)Труды сотрудников Института теплофизики УрО РАН (16)Расплавы (3)Публикации Чарушина В.Н. (4)
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Общее количество найденных документов : 18
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 1-10    11-18 
1.
Инвентарный номер: нет.
   
   B 12

   
    Bacterial degradation of a mixture obtained through the chemical modification of polychlorinated biphenyls by polyethylene glycols / D. O. Egorova, T. I. Gorbunova, M. G. Pervova, V. A. Demakov // Applied Biochemistry and Microbiology. - 2014. - Vol. 50, № 7. - С. 722-729. - Bibliogr. : p. 729 (29 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
BACTERIAL DEGRADATION -- CHEMICAL MODIFICATION -- POLYETHYLENE GLYCOLS
Аннотация: Polychlorinated biphenyls (PCBs), also known by the trade name Sovol, are toxic industrial wastes. They have been subjected to chemical treatment by polyethylene glycols (PEGs) and potassium hydroxide. As a result of the interaction of the Sovol with various molecular mass PEGs (MMPEG-4 ∼ 200, MMPEG-22 ∼ 1000), water-soluble mixtures M1 and M2 containing mono(polyethylene glycol)oxy-derivatives (PCB-PEG-4 and PCB-PEG-22), polychlorobiphenylols, and unreacted PCB congeners (PCB 44, PCB 47, PCB 49, PCB 52, and PCB 66) were obtained. It was shown for the first time that mixtures M1 and M2 are susceptible to bacterial degradation without their fractionation. According to the gas-liquid chromatography with flame-ionization and mass-spectrometric detection, the Rhodococcus wratislaviensis KT112-7 strain degraded all of the chemical compounds occurring in the mixtures. In a 5-day experiment, it was found that the KT112-7 strain decomposes mono(polyethylene glycol)oxy-derivatives completely (by 100%) and polychlorobiphenylols and PCB congeners by 90–95% in the M1 and M2 mixtures. The culture medium did not contain transformation products, whereas free chlorine ions were accumulated (72–94% of the maximum possible amount). Thus, the use of the chemical modification and consecutive bacterial degradation provided an effective destruction of technical PCB mixtures with a high content of highly chlorinated congeners

\\\\expert2\\nbo\\Applied Biochemistry and Microbiology\\2014, v.50, N 7, p.722-729.pdf
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2.
Инвентарный номер: нет.
   
   C 53

   
    Chloromethyl-, dichloromethyl-, and trichloromethyl-1,2,4-triazines and their 4-oxides: method for the synthesis and tele-substitution reactions with C-nucleophiles [Electronic resource] / D. N. Kozhevnikov, N. N. Kataeva, V. L. Rusinov, O. N. Chupakhin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2004. - Vol. 53, № 6. - P1295-1300
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: A simple procedure was developed for the synthesis of 1,2,4-triazines and their 4-oxides containing the ClCH2, Cl2CH, or CCl3 group at position 3 by cyclization of 2-aryl-2-hydrazono-1-oximinoethanes with the corresponding chloroacetonitriles. The reaction pathway depends on the number of halogen atoms in the acetonitrile used. The reactions with trichloroacetonitrile, monochloroacetonitrile, and dichloroacetonitrile afford 3-trichloromethyl-1,2,4-triazines, 3-chloromethyl-1,2,4-triazine 4-oxides, and a mixture of the corresponding dichloromethyltriazines and their 4-oxides, respectively. The reactions of 3-trichloromethyl-1,2,4-triazines with indoles and phenols are accompanied by tele-substitution with elimination of halogen from the trichloromethyl group to give 5-indolyl- (or 5-hydroxyphenyl)-3-dichloromethyl-1,2,4-triazines

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2004, 53 (6), 1295-1300.pdf
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3.
Инвентарный номер: нет.
   
   F 33

   
    Features of polychlorinated biphenyls nitration [Electronic resource] / T. I. Gorbunova, M. G. Pervova, K. A. Plotnikova, V. I. Saloutin, O. N. Chupakhin // Russian Journal of General Chemistry. - 2015. - Vol. 85, № 7. - С. 1611-1616. - Bibliogr. : p. 1616 (21 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
POLYCHLORINATED BIPHENYLS -- GAS CHROMATOGRAPHY -- NITRATION
Аннотация: Nitration of mono-, di-, and trichlorobiphenyls has been studied. The nitration degree depends on the number of chlorine substituents; one to four nitro groups can be introduced. The conclusions have been confirmed by results of nitration of the "Trikhlorbifenil" technical mixture of polychlorinated biphenyls.

\\\\expert2\\nbo\\Russian Journal of General Chemistry\\2015, V. 85, N 7, p. 1611-1616.pdf
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4.
Инвентарный номер: нет.
   
   F 94

   
    From 3-chloromethyl-1,2,4-triazine 4-oxides to various substituted pyridines and 1,2,4-triazines [Electronic resource] / V. N. Kozhevnikov, D. N. Kozhevnikov, O. V. Shabunina, N. N. Kataeva, S. A. Yushchuk, V. L. Rusinov, O. N. Chupakhin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2005. - Vol. 54, № 9. - P2187-2196. - Библиогр. : с. 2196 (24 назв.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: An efficient strategy for the synthesis of new pyridine and 1,2,4-triazine derivatives starting from available 6-aryl-3-chloromethyl-1,2,4-triazine 4-oxides was proposed. The deoxygenative nucleophilic hydrogen substitution in the triazine-oxide ring, nucleophilic substitution of the chlorine atom in the side chain, and transformations of the 1,2,4-triazine ring into the pyridine ring via the inverse-electron-demand Diels-Alder reactions, being used in different orders, are a rather flexible tool for the functionalization of the titled heterocycles. The cyanide anion, indoles, thiophenols, amines, and triphenylphosphine were used as nucleophiles. The direct introduction of indole residues into the 1,2,4-triazine ring followed by the substitution of the chlorine atom by a residue of the primary or secondary aliphatic amine was found to be the most convenient method for the library synthesis.

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2005, 54 (9), 2187-2196.pdf
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5.
Инвентарный номер: нет.
   

   
    New nido-carborane-containing conjugates of purine: synthesis and antiviral activity / D. A. Gruzdev, A. A. Telegina, V. A. Ol’shevskaya [et al.] // Russian chemical bulletin. - 2022. - Vol. 71, № 11. - P2375-2382
Рубрики: ЗДРАВООХРАНЕНИЕ. МЕДИЦИНСКИЕ НАУКИ
   ХИМИЧЕСКИЕ НАУКИ
Аннотация: New purine derivatives containing a nido-carborane fragment were synthesized by nucleophilic substitution of chlorine atom in 6-chloropurine and 2-amino-6-chloropurine under the action of nido-carborane-containing amines. Compounds with significant activity against the acyclovir-resistant strain of herpes simplex virus type 1, as well as with moderate activity against influenza viruses A and B, were discovered for the first time among the synthesized nido-carboranyl derivatives of purine.

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6.
Инвентарный номер: нет.
   
   O-97

   
    Oxidation of 1-methyl-1H-imidazole-2-thiol with chlorine dioxide [] / O. M. Lezina, S. A. Rubtsova, D. V. Belykh, P. A. Slepukhin, A. V. Kutchin // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2013. - Vol.49, №1. - С. 112-118
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
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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7.
Инвентарный номер: нет.
   
   O-97

   
    Oxidation of polyfunctional sulfides with chlorine dioxide [Electronic resource] / I. P. Loginova, K. S. Rodygin, S. A. Rubtsova, P. A. Slepukhin, A. V. Kuchin, V. A. Polukeev // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2011. - Vol. 47, № 1. - P124-130 : рис., табл. - Bibliogr. : p. 129-130 (24 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: 3-Benzylsulfanyl-4,5-diphenyl-4H-1,2,4-triazole, 5-methylsulfanyl-1-phenyl-1H-tetrazole, 2-methylsulfanyl-1H-benzimidazole, 2-benzylsulfanyl-1H-benzimidazole, and 1-butylsulfanyl-4-nitrobenzene were oxidized to the corresponding sulfoxides with chlorine dioxide using different modes of oxidant supply. The oxidation process was characterized by high chemoselectivity

\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2011, 47 (1), 124-130.pdf
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8.
Инвентарный номер: нет.
   
   O-97

   
    Oxidation of terpenoid diols with chlorine dioxide. Easy preparation of α-hydroxyketones [Electronic resource] / L. L. Frolova, A. V. Popov, L. V. Bezuglaya, P. A. Slepukhin, A. V. Kuchin // Russian Journal of General Chemistry. - 2014. - Vol.84, №5. - С. 853-859. - Bibliogr. : p. 859 (16 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
CHLORINE DIOXIDE -- OXIDATION -- SELECTIVITY
Аннотация: Oxidative dehydrogenation of vicinal diols of bornane and pinane type with chlorine dioxide in dimethylformamide has yielded α-hydroxyketones with high selectivity. 3α-Hydroxy-10β-pinane-4-one has been prepared for the first time with yield of 63-65%; the product structure has been confirmed by X-ray diffraction studies

\\\\expert2\\nbo\\Russian Journal of General Chemistry\\2014, V. 84, N 5, p. 853–859.pdf
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9.
Инвентарный номер: нет.
   
   P 80

   
    Polychlorinated biphenyls: Correlation between experimental data and quantum-chemical simulation / T. I. Gorbunova, J. O. Subbotina, V. I. Saloutin, O. N. Chupakhin // Russian Journal of General Chemistry. - 2014. - Vol.84, №3. - С. 486-495. - Bibliogr. : p. 494-495 (43 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
POLYCHLORINATED BIPHENYLS -- SOVOL MIXTURE -- NUCLEOPHILIC SUBSTITUTION
Аннотация: In order to comprehend the data on reactivity of polychlorinated biphenyls of the Sovol mixture in nucleophilic substitution reactions we have performed quantum-chemical simulation using the RB3LYP\6-31G(d) gas phase approximation. Using the "Atoms-in-Molecules" approach, we have computed charges on the biphenyl carbon atoms adjacent to chlorine; furthermore, absolute chemical hardness and global electrophilicity index have been determined for the studied chlorobiphenyls. The calculated descriptors have been correlated with experimentally determined reactivity of the biphenyls in the hard acid-hard base nucleophilic reactions. The higher reactivity of more chlorinated substrates has been confirmed

\\\\expert2\\nbo\\Russian Journal of General Chemistry\\2014, V. 84, N 3, p. 486–495.pdf
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10.
Инвентарный номер: нет.
   
   R 30

   
    Reaction of dinitropolychlorobiphenyls with O- and N-nucleophiles as a new route of reprocessing polychlorobiphenyls [Electronic resource] / T. I. Gorbunova, A. Ya. Zapevalov, V. I. Saloutin, O. N. Chupakhin // Russian Journal of Applied Chemistry. - 2002. - Vol. 75, № 3. - P449-451. - Bibliogr. : p. 451 (11 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
AROMATIC COMPOUND -- DINITROPOLYCHLOROBIPHENYLS -- POLYCHLOROBIPHENYLS -- CHLORINE -- UNCLASSIFIED DRUG
Аннотация: The reactivity of a mixture of dinitropolychlorobiphenyls in nucleophilic substitution of aromatic chlorine by polyethyleneoxy and amino groups was studied. New polychlorobiphenyl derivatives were obtained.

\\\\Expert2\\nbo\\Russian Journal of Applied Chemistry\\2002, v. 75, N. 3, p.449.pdf
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