В 40 Взаимодействие полифторацилпировиноградных кислот с N-нуклеофилами [] = Interaction of esters of polyfluoroacylpyruvic acids with N-dinucleophiles / П. Н. Кондратьев, З. Э. Скрябина, В. И. Салоутин, Л. М. Халилов // Журнал органической химии. - 1992. - Т. 28, N 7. - С. 1380-1387 . - ISSN 0514-7492 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: По данным ЯМР (13)C, эфиры полифторацилпировиноградных кислот енолизованы по карбонильному атому углерода, связанному со сложноэфирной группой. Взаимодействие этих соединений с этилендиамином (o-фенилендиамином) осуществляется по альфа-кетоэфирному фрагменту молекулы с образованием производных пиперазин-2-она (1,2,3,4-тетрагидрохиноксалин-2-она), а с гидразинами - по бета-дикарбонильному фрагменту с образованием 5-гидроксипиразолинов. |
Р 31 Реакции 2-алкокси-4Н-1,3,2-бензодиоксафосфорин-4-онов с галогензамещенными ацетоуксусными эфирами. Квантово-химическое изучение строения продуктов методом ППДП/2 [] = Reactions of 2-alkoxy-4H-1,3,2-benzodioxaphosphorin-4-ones with halo-substituted acetoacetic esters - quantum-chemical study of product structure by the CNDO/2 method / В. Ф. Миронов, М. Б. Бобров, Р. А. Мавлеев, Р. М. Аминова, И. В. Коновалова, К. И. Пашкевич, П. П. Чернов // Журнал общей химии. - 1993. - Т. 63, N 4. - С. 797-809 . - ISSN 0044-460X Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: Исследованы реакции 2-алкокси-4Н-1,3,2-бензодиоксафосфорин-4-онов с галогензамещенными ацетоуксусными эфирами, протекающие с селективным раскрытием фосфоринанового цикла. Методом ППДП/2 проведен квантово-химический расчет продуктов - винилфосфатов, образующихся преимущественно в z-конфигурации. Изучены процессы циклизации винилфосфатов в 2-винилалкокси-2-оксо-4Н-1,3,2-бензодиоксафосфорин-4-оны |
O-57 One-step route to fluorinated furo[2,3-b]quinoxalines [Electronic resource] / V. N. Charushin, G. A. Mokrushina, G. M. Petrova, G. G. Alexandrov, O. N. Chupakhin, // Mendeleev Communications. - 1998. - Vol. 8, N 4. - P133-134 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: The reaction of 6,7-difluoro-1-ethylquinoxalinium salts with 2,4-pentandione, ethyl and bornyl acetoacetates and other beta-ceto esters results in the formation of 6,7-difluoro-3a,4,9,9a-tetrahydrofuro[2,3-b]quinoxalines \\\\expert2\\nbo\\Mendeleev Communications\\1998, v.8, N 4. p.133.pdf |
S 17 Saloutin, V. I. Transesterification of copper (II) beta-ketoesterates and acylpyruvates with borneol [Electronic resource] / V. I. Saloutin, P. N. Kondrat'ev, Z. E. Skryabina // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 1993. - Vol. 42, N 5. - P858-860 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: Transesterification of copper (II) acetoacetates, copper (II) trifluoroacetoacetate, and copper (II) acylpyruvates with borneol gives the copper (II) chelates of the corresponding bornyl esters in 92-95% yelds \\EXPERT2\NBO\Russian Chemical Bulletin\1993, 42 (5), 858.pdf, \\\\expert2\\NBO\\Russian Chemical Bulletin\\1993, 42 (5), 858.pdf |
C 73 Conformational structure of esters of fluorinated acylpyruvic acids [Electronic resource] / P. N. Kondrat'ev, Z. E. Skryabina, V. I. Saloutin, M. N. Rudaya, T. A. Sinitsyna, K. I. Pashkevich // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 1990. - Vol. 39, N 6. - P1273-1277 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: Esters of fluorinated acylpyruvic acids were obtined for the first time. PMR and IR spectroscopy, dipole moment measurements, and quantum chemical calculations showed that these compounds exist as equilibrium mixtures of E and Z enolic isomers \\\\Expert2\\nbo\\Russian Chemical Bulletin\\1990, 39 (6), 1273.pdf |
A 53 An effective synthesis method for secondary fluorinated alcohols via the reaction of esters of polyfluorinated acids with trialkylalanes [Electronic resource] / O. G. Khomutov, V. I. Filyakova, A. V. Kuchin, K. I. Pashkevich, G. A. Tolstikov // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 1992. - Vol. 41, N 10. - P1834-1835 Рубрики: ХИМИЧЕСКИЕ НАУКИ \\\\Expert2\\nbo\\Russian Chemical Bulletin\\1992, 41 (10), 1834.pdf |
T 44 The peculiarities of sorption of esters, thioesters and amides of perfluorocarboxylic acids [Text] : доклад, тезисы доклада / V. E. Kirichenko, E. P. Promyshlennikova, O. A. Osipova, K. I. Pashkevich // International Congress of Analitical Chemistry, M., June 15-21, 1997 : absracts. - M., 1997. - Vol. 1. - PE90 Рубрики: ХИМИЧЕСКИЕ НАУКИ |
H 99 Interaction of pentafluorobenzoylpyrunicacid and its esters with N-nucleophiles. Synthesis of Y-oxoquinoline-2-carboxylic acids [Text] / V. I. Saloutin, Z. E. Skryabina, I. T. Bazyl, P. N. Kondrat'ev, O. N. Chupakhin // Journal of Fluorine Chemistry. - 1994. - Vol. 69, № 1. - P119-126 Рубрики: ХИМИЧЕСКИЕ НАУКИ |
Г 13 Газожидкостная хроматография сложных эфиров предельных фторированных карбоновых кислот. Сообщение 1. Закономерности удерживания в гомологических рядах [] = Gas-Liquid chromatography of saturated fluorinated carboxilic-acid esters. 1. Retention in homologous series / Е. П. Промышленникова, В. Е. Кириченко, К. И. Пашкевич, Д. Н. Григорьева, Р. В. Головня // Изв. АН СССР. Сер. Химическая. - 1991. - N 2. - С. 418-425 . - ISSN 0002-3353 Рубрики: ХИМИЧЕСКИЕ НАУКИ |
Г 13 Газожидкостная хроматография сложных эфиров предельных фторированных карбоновых кислот [] = Gas-liquid chromatography of esters of saturated fluorinated carboxilic-acid / Е. П. Промышленникова, В. Е. Кириченко, К. И. Пашкевич, Д. Н. Григорьева, Р. В. Головня // Изв. АН СССР. Сер. Химическая. - 1991. - N 3. - С. 629-634 . - ISSN 0002-3353 Рубрики: ХИМИЧЕСКИЕ НАУКИ |
С 38 Синтез и туберкулостатическая активность метиловых эфиров некоторых аминокислот, содержащих остаток симм-тетразина [] = Synthesis and tuberculostatic activity of methyl esters of some aminoacids with sym-tetrazine moieties / Г. Л. Русинов, Н. И. Латош, Р. И. Ишметова, М. А. Кравченко, И. Н. Ганебных, В. А. Соколов, О. Н. Чупахин // Химико-фармацевтический журнал. - 2005. - Т. 39, N 1. - С. 10-12. - Библиогр. : с. 12 (8 назв.) . - ISSN 0023-1134 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: Получены продукты нуклеофильного замещения 3,5-диметилпиразолильного остатка в 3,6-бис(диметилпиразол-1-ил)-5-тетразине на метиловые эфиры аминокислот. Для одного из 7 соединений уровень туберкулоцидного действия составил 0,6 мкг/мл. Напротив, два соединения в ряду стимулировали рост колоний микробактерий |
S 98 Synthesis of trifluoroalkyl- and fluoroaryl-substituted 4,5-dihydro-1H-1,2,4-triazole-5-thiones [Electronic resource] / E. B. Vasil'eva, D. V. Sevenard, O. G. Khomutov, O. A. Kuznetsova, N. S. Karpenko, V. I. Filyakova // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2004. - Vol. 40, № 6. - P874-878. - Библиогр. : с. 878 (8 назв.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: Reactions of 4-(4-fluorophenyl)-, 4-(4-trifluoromethoxyphenyl)-, 4-(3,4-difluorophenyl)-, 4-(4-trifluoromethylphenyl)-, 4-piperidino-, and 4-(3-pyridyl)thiosemicarbazides with esters gave the corresponding 3,4-disubstituted 4,5-dihydro-1H-1,2,4-triazole-5-thiones and their S-alkyl derivatives. Analogous reactions with methyl 2,2,3,3,4,4,5,5-octafluoropentanoate and 2,2,3,3,4,4,5,5-octafluoropentanenitrile afforded, respectively, the acylation and addition products. \\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2004, 40 (6), 874.pdf |
S 98 Synthesis and tuberculostatic activity of some substituted amino acid methyl esters with sym-tetrazine moieties [Electronic resource] / G. L. Rusinov, N. I. Latosh, R. I. Ishmetova, M. A. Kravchenko, I. N. Ganebnuikh, V. A. Sokolov, O. N. Chupakhin // Pharmaceutical Chemistry Journal. - 2005. - Vol. 39, № 1. - P8-10 Рубрики: ХИМИЧЕСКИЕ НАУКИ \\\\Expert2\\nbo\\Pharmaceutical Chemistry Journal\\2005, 39 (1), 8.pdf |
N 64 Nikitin, E. D. Vapor - Liquid Critical Properties of Some Tetraalkoxysilanes [Electronic resource] / E. D. Nikitin, V. A. Simakina, A. P. Popov // Journal of Chemical & Engineering Data. - 2008. - Vol. 53, № 6. - P1371-1374 : рис., табл. - Библиогр. : с. 1374 (17 назв.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: The critical pressures and the critical temperatures of ten tetraalkoxysilanes (tetraalkyl esters of silicic acid) Si[O(CH2)nH]4 with n = 1 to 10 have been measured. All the substances studied begin to decompose at temperatures below their critical points. The method of pulse-heating applicable to thermally unstable compounds has been used. Residence times were from (0.03 to 1) ms, which resulted in little decomposition of the substances during measuring. The experimental critical properties of tetraalkoxysilanes have been compared with the values estimated by the group-contribution methods of Lydersen and Nannoolal et \\\\Expert2\\nbo\\Journal of Chemical and Engineering Data\\2008, v.53, p. 1371.pdf |
S 98 Synthesis of 7-alkyl(aryl)-6-alkoxycarbonyl-5-fluoroalkyl-1,2,4-tri(tetr)azolo[1,5-a]pyrimidines [Electronic resource] / M. V. Pryadeina, Ya. V. Burgart, V. I. Saloutin, M. I. Kodess, E. N. Ulomskii, V. L. Rusinov // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2004. - Vol. 40, № 6. - P902-907. - Библиогр. : с. 906 (14 назв.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: Fluorinated 3-oxo esters react with aldehydes and 3-amino-1,2,4-triazoles and 5-aminotetrazoles to give, respectively, 7-alkyl(aryl)-6-alkoxycarbonyl-5-fluoroalkyl-1,2,4-triazolo[1,5-a]pyrimidines and -tetra-zolo[1,5-a]pyrimidines. The same heterocyclic products can be obtained by reaction of 2-benzylidene-2-fluoroacyl esters with the corresponding aminoazoles \\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2004, 40 (6), 902-907.pdf |
S 53 Shchegol'kov, E. V. The transformations of fluoroalkyl-containing 2-arylhydrazono-1,3-dicarbonyl compounds with methylamine [Electronic resource] / E. V. Shchegol'kov, Ya. V. Burgart, V. I. Saloutin // Journal of Fluorine Chemistry. - 2007. - Vol. 128, № 7. - P779-788 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: Fluoroalkylated 1,2,3-triketone 2-arylhydrazones and 2-arylhydrazono-3-oxo esters react variously with methylamine depending on the structure of the fluorinated substituent. 2-Arylhydrazono-1,3-dicarbonyl compounds having "short" fluoroalkyl substituents condense with methylamine at the carbonyl group attached to the non-fluorinated substituent whereas ones containing a lengthy polyfluoroalkyl substituent undergo haloformic cleavage as a result of the amine addition at the carbonyl group bearing such a substituent. The resulting 2-arylazo-3-(N-methyl)amino-1-polyfluoroket-2-en-1-ones and 1-(N-methyl)amino-2-arylhydrazono-3-fluoroalkyl-3-oxopropanamides have complexing properties, and they can bind to nickel(II) and copper(II) ions. Nickel chelates can be obtained by a three-component condensation of 2-arylhydrazono-1,3-dicarbonyl compounds and methylamine in the presence of nickel(II) cations. \\\\Expert2\\nbo\\Journal of Fluorine Chemistry\\2007, v.128. p.779.pdf |
R 30 Reactions of polyfluorinated 2-arylhydrazono-3-oxocarboxylic acid esters with o-phenylenediamine [Electronic resource] / O. G. Khudina, E. V. Shchegol'kov, Ya. V. Burgart, V. I. Saloutin // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2004. - Vol. 40, № 6. - P813-817 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: Polyfluorinated 2-arylhydrazono-3-oxocarboxylic acid esters react with o-phenylenediamine in neutral medium to give mainly the corresponding o-aminoanilides which can be converted into 1,5-benzodi-azepin-2-ones. In the reactions with ethyl 2-arylhydrazono-3-oxobutanoate and its 4,4-di- and 4,4,4-trifluoro derivatives, ethyl 2-(2-benzimidazolyl)-2-[(4-methylphenyl)hydrazono]ethanoate is also formed. \\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2004, 40 (6), 813.pdf |
R 30 Reactions of alkyl 2-benzylidene-2-polyfluoroacylacetates with N,N-dinucleophiles [Electronic resource] / M. V. Pryadeina, Ya. V. Burgart, M. I. Kodess, V. I. Saloutin, O. N. Chupakhin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2004. - Vol. 53, № 6. - P1261-1266. - Библиогр. : с. 1266 (16 назв.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: Alkyl 2-benzylidene-2-polyfluoroacylacetates react with urea and thiourea to yield 5-ethoxycarbonyl-4-fluoroalkyl-4-hydroxy-6-phenylhexahydropyrimidin-2-ones and -2-thiones and with guanidine sulfate to form 2-amino-5-ethoxycarbonyl-4-fluoroalkyl-6-phenyl-1,6-dihydropyrimidines and 3,6-diethoxycarbonyl-2,7-difluoroalkyl-4,5-diphenyl-4,5-dihydro-1H-pyrido[1,2-a]pyrimidines, and they react with phenylhydrazine to afford 4-alkoxycarbonyl-3-fluoroalkyl-3-hydroxy-1,5-diphenylpyrazolidines. Hydrazine hydrate catalyzes the formation of 3,5-diethoxycarbonyl-2,6-difluoroalkyl-2,6-dihydroxy-4-phenyltetrahydropyrans. When treated with anhydrous hydrazine and o-phenylenediamine, these esters cleave to form the products of condensation of fluoroacyl ester and benzaldehyde with diamines. \\\\Expert2\\nbo\\Russian Chemical Bulletin\\2004, 53 (6), 1261-1266.pdf |
T 44 The interaction of fluorinated 2-arylhydrazono-1,3-dicarbonyl compounds with o-phenylenediamine [Electronic resource] / O. G. Khudina, E. V. Shchegol'kov, Ya. V. Burgart, V. I. Saloutin, O. N. Chupakhin // Journal of Fluorine Chemistry. - 2004. - Vol. 125, № 9. - P1363-1370 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: 2-Arylhydrazono-3-fluoroaklyl-3-oxo esters react with o-phenylenediamine under neutral conditions to form mainly o-aminoanilides, from which can be obtained 1,5-benzodiazepin-2-ones. Ethyl-2-(benzimidazol-2-yl)-2-(4-methylphenyl)hydrazonoethanoate was isolated also from the reaction of di(tri)fluoromethyl-containing 2-arylhydrazono-3-oxo esters. The reactions of o-phenylenediamine with 1,2,3-triketone 2-arylhydrazones containing alkyl substituents result in the formation of 1-(benzimidazol-2-yl)-1,2-dioxoalkane arylhydrazones, whereas phenylsubstituted analogues afford 2-phenylbenzimidazole. Nickel(II) chelates of N,N?-phenylene-bis(2-arylazo-1,3-aminovinylketones) were obtained from 1,2,3-triketone 2-arylhydrazones and o-phenylenediamine using a template method. \\\\Expert2\\nbo\\Journal of Fluorine Chemistry\\2004, v.125, p.1363.pdf |
R 45 Resistance of polyfluorinated complete esters of polyhydric alcohols to thermal oxidation: Comparison with nonfluorinated analogs [Electronic resource] / T. I. Gorbunova, S. M. Sorokina, A. Ya. Zapevalov, V. I. Saloutin // Russian Journal of General Chemistry. - 2006. - Vol. 76, № 11. - P1795-1800 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: Complete esters of pentaerythritol, trimethylolpropane, and 2,2-dimethyl-1,3-propanediol with polyfluorinated carboxylic acids were prepared by esterification. As determined by differential thermal gravimetric analysis in air, the resistance of the esters to thermal oxidation decreases in going from pentaerythritol derivatives to those of trimethylolpropane and then to those of 2,2-dimethyl-1,3-propanediol. The compounds synthesized surpass their nonfluorinated analogs in the resistance to thermal oxidation. \\\\Expert2\\nbo\\Russian Journal of General Chemistry\\2006, V. 76, N 11, p.1795.pdf |