Главная Новые поступления Описание Шлюз Z39.50

Базы данных


Труды сотрудников Института органического синтеза УрО РАН - результаты поиска

Вид поиска
Каталог книг и продолжающихся изданий
Сводный каталог иностранных периодических изданий, имеющихся в библиотеках УрО РАН
Сводный каталог отечественных периодических изданий, имеющихся в библиотеках УрО РАН
Каталог диссертаций и авторефератов диссертаций УрО РАН
Каталог препринтов УрО РАН (1975 г. - )
Имидж-каталог отечественных книг (до 2010 г.)
Имидж-каталог иностранных книг (до 2010 г.)
Алфавитно-предметный указатель (АПУ) ЦНБ УрО РАН
Публикации об УрО РАН
Изобретения уральских ученых
Интеллектуальная собственность (статьи из периодики)
Нанотехнологии
Демидовские премии
Гибель династии Романовых
История Урала
Личная библиотека С. В. Вонсовского
Книжная коллекция Шубиных
Труды Института высокотемпературной электрохимии УрО РАН
Труды Института истории и археологии УрО РАН
Труды сотрудников Института горного дела УрО РАН
Труды сотрудников Института органического синтеза УрО РАН
Труды сотрудников Института теплофизики УрО РАН
Труды сотрудников Института химии твердого тела УрО РАН
Расплавы
Труды сотрудников ЦНБ УрО РАН
Публикации Черешнева В.А.
Публикации Чарушина В.Н.
Каталог библиотеки ИЭРиЖ УрО РАН
Электронная энциклопедия «Дискурсология»
Библиометрия
Область поиска
в найденном
 Найдено в других БД:Каталог книг и продолжающихся изданий (15)Сводный каталог иностранных периодических изданий, имеющихся в библиотеках УрО РАН (1)Труды Института высокотемпературной электрохимии УрО РАН (18)Труды сотрудников Института химии твердого тела УрО РАН (54)Расплавы (28)Публикации Чарушина В.Н. (19)
Формат представления найденных документов:
полныйинформационныйкраткий
Отсортировать найденные документы по:
авторузаглавиюгоду изданиятипу документа
Поисковый запрос: (<.>K=OXIDATION<.>)
Общее количество найденных документов : 62
Показаны документы с 1 по 20
 1-20    21-40   41-60   61-62 
1.
Инвентарный номер: нет.
   
   C 76

   
    Convenient synthesis of building-blocks for pyridine/piperidine-decorated crown ethers [Electronic resource] / M. B. Nawrozkij, E. B. Gorbunov, V. L. Rusinov, V. N. Charushin // Macroheterocycles . - 2014. - Vol.7, №1. - С. 18-22. - Bibliogr. : p. 22 (19 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
2-VYNYLPYRIDINE -- EPOXIDATION -- HYDROXYLATION
Аннотация: A convenient way to 1-(pyridin-2-yl)ethan-1,2-diol, 2-(oxiran-2-yl)pyridine and two diastereomeric forms of 1-(piperidin- 2-yl)ethan-1,2-diol, valuable building-blocks for the synthesis of functionalized crown ethers, has been developed. It is based on the Wagner oxidation or NBS-mediated epoxydation of 2-vinylpyridine, and the Schwenk-Papa reduction of 1-(pyridin-2-yl)ethan-1,2-diol, accompanied by fractional crystallization of a diastereo-meric mixture of the target product

Найти похожие
2.
Инвентарный номер: нет.
   
   S 98

   
    Synthesis of 4-(thien-2-yl)-substituted coumarins through Lewis acid catalyzed Michael addition of thiophenes to 3-benzoylcoumarins followed by oxidation [Electronic resource] / R. A. Irgashev, A. A. Karmatsky, G. L. Rusinov, V. N. Charushin // Tetrahedron Letters. - 2014. - Vol.55, №26. - С. 3603-3606
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
THIOPHENES -- 3-BENZOYLCOUMARINS -- Lewis acid
Аннотация: 3-Benzoyl-4-(thien-2-yl)coumarins have been obtained in good yields according to the SNH addition–oxidation protocol, involving the diastereoselective addition of thiophenes at C-4 of 3-benzoylcoumarins under BBr3 catalysis, followed by oxidation of the intermediate 3,4-trans-3-benzoyl-4-(thien-2-yl)-3,4-dihydrocoumarins with DDQ. This two-step procedure can be regarded as nucleophilic substitution of hydrogen (SNH) on the heterocyclic ring of coumarins

\\\\expert2\\nbo\\Tetrahedron Letters\\2014, v. 55, p. 3603.pdf
Найти похожие
3.
Инвентарный номер: нет.
   
   O-97

   
    Oxidation of highly chlorinated benzenes and biphenyls with potassium persulfate in the presence of perfluorinated radicals [Electronic resource] / T. I. Gorbunova, M. G. Pervova, A. A. Panyukova, A. Ya. Zapevalov, V. I. Saloutin // Russian Journal of General Chemistry. - 2013. - Vol. 83, №9. - С. 1678-1686. - Bibliogr. : p. 1686 (25 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
1,2,3,4-TETRACHLOROBENZENE -- 2,4,5-TRICHLOROBIPHENYL -- 2,5,4′-TRICHLOROBIPHENYL
Аннотация: The interaction of 1,2,3,4-tetrachlorobenzene, 2,4,5-trichlorobiphenyl, 2,5,4′-trichlorobiphenyl, a mixture of 1,2,3- and 1,2,4-trichlorobenzene, and industrial mixtures of polychlorinated biphenyls with potassium persulfate in the presence of potassium perfluorobutyrate has been investigated. The oxidation of highly chlorinated benzenes and biphenyls proceeds with lower conversion than that of the low-chlorinated compounds. The oxidation of the highly chlorinated aromatic substrates is not selective; the reaction mixture contains products of several competitive reactions: addition and elimination of radical species, disproportionation, isomerization, etc. The structures of the products have been determined by means of gas chromatography with mass spectrometric detection

\\\\expert2\\nbo\\Russian Journal of General Chemistry\\2013, V. 83, N 9, p. 1678–1686.pdf
Найти похожие
4.
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
Найти похожие
5.
Инвентарный номер: нет.
   
   N 91

   
    Nucleophilic dimerization of indoline under oxidative conditions [Electronic resource] / I. S. Kovalev, D. S. Kopchuk, G. V. Zyryanov, V. L. Rusinov, O. N. Chupakhin // Mendeleev Communications. - 2014. - Vol. 24, № 1. - С. 40-41
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
INDOLINE -- HYDROGEN PEROXIDE -- SODIUM TUNGSTATE AFFORDS
Аннотация: Oxidation of indoline with 30% hydrogen peroxide in methanol in the presence of sodium tungstate affords the dimeric 3-oxo-1’H,3H- 2,3’-biindole-1-oxide

\\\\expert2\\nbo\\Mendeleev Communications\\2014, v.24, p. 40-41.pdf
Найти похожие
6.
Инвентарный номер: нет.
   
   У 76

   
    Усовершенствованный синтез билдинг-блоков для получения краун-эфиров c пиридиновыми или пиперидиновыми фрагментами = Convenient synthesis of building-blocks for pyridine/piperidine-decorated crown ethers / М. Б. Навроцкий, Е. Б. Горбунов, А. С. Бабушкин, Е. А. Ручко, Г. Л. Русинов, В. Н. Чарушин, И. А. Новаков // Макрогетероциклы. - 2014. - Т. 7. - С. 18-22. - Библиогр.: с. 22 (19 назв)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Дескрипторы: 2-VYNYLPYRIDINE -- EPOXIDATION -- PIPERIDINE
Аннотация: A convenient way to 1-(pyridin-2-yl)ethan-1,2-diol, 2-(oxiran-2-yl)pyridine and two diastereomeric forms of 1-(piperi-din-2-yl)ethan-1,2-diol, valuable building-blocks for the synthesis of functionalized crown ethers, has been developed. It is based on the Wagner oxidation or NBS-mediated epoxydation of 2-vinylpyridine, and the Schwenk-Papa reduction of 1-(pyridin-2-yl)ethan-1,2-diol, accompanied by fractional crystallization of a diastereo-meric mixture of the target produc

Найти похожие
7.
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

Найти похожие
8.
Инвентарный номер: нет.
   
   P 34

    Pavlonich, L. B.
    Improving the production of phthalic anhydride from industrial-grade naphthalene / L. B. Pavlonich, E. Andreikov // Coke and Chemistry . - 2013. - Vol.56, №9. - С. 356-358. - Bibliogr. : p. 358 (12 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
CATALYST REGENERATION -- CATALYTIC OXIDATION -- INDUSTRIAL-GRADE NAPHTHALENE
Аннотация: Means of more effective utilization of industrial-grade naphthalene in phthalic anhydride production have been developed

Найти похожие
9.
Инвентарный номер: нет.
   
   S 98

   
    Synthesis and Asymmetric Oxidation of (Caranylsulfanyl)-1H-imidazoles / M. Ya. Demakova, D. V. Sudarikov, S. A. Rubtsova, L. L. Frolova, A. V. Popov, P. A. Slepukhin, A. V. Kuchin // Helvetica Chimica Acta. - 2012. - Vol.95, №6. - С. 940-950
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
1H-IMIDAZOLES -- ASYMMETRIC OXIDATION -- X-RAY CRYSTALLOGRAPHY
Аннотация: For the first time 2-(cis-caran-4-ylsulfanyl)-1H-imidazole, 1-methyl-2-(cis-caran-4-ylsulfanyl)-1H-imidazole, and 2-(cis-caran-4-ylsulfanyl)-1H-benzimidazole (carane=3,7,7-trimethylbicyclo[4.1.0]heptane) were synthesized, and the asymmetric oxidation of these compounds was also carried out. It was shown that oxidation by the Bolm system and the modified system of Sharpless lead to corresponding sulfoxides with de values of 91–100%

Найти похожие
10.
Инвентарный номер: нет.
   
   A 89

   
    Asymmetric oxidation of hetaryl neomenthyl sulfides / M. Ya. Demakova, D. V. Sudarikov, S. A. Rubtsova, P. A. Slepukhin, A. V. Kutchin // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2012. - Vol.48, №1. - С. 113-118
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ASYMMETRIC OXIDATION -- SULFIDES
Аннотация: Previously unknown diastereoisomeric sulfoxides were synthesized by asymmetric oxidation of 2-neomenthylsulfanyl-substituted 1H-imidazole, 1-methyl-1H-imidazole, and 1H-benzimidazole

\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2012, 48 (1), 113-118.pdf
Найти похожие
11.
Инвентарный номер: нет.
   
   U 62

   
    Unusual heterocyclization of chalcone podands with 3-amino-1,2,4-triazole / I. G. Ovchinnikova, M. S. Valova, E. G. Matochkina, M. I. Kodess, A. A. Tumashov, P. A. Slepukhin, O. V. Fedorova, G. L. Rusinov, V. N. Charushin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2011. - Vol.60, №5. - С. 965-974
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
TEMPLATE SYNTHESIS -- CHALCONE PODAND -- CROWN ETHERS
Аннотация: A new type of intramolecular cyclization of 1,5-bis[2-(E-3-oxo-3-phenylprop-1-enyl)-phenoxy]-3-oxapentane with 3-aminotriazole promoted by potassium ions was discovered. A cascade mechanism for the formation of crownophane with 4,7-dihydro[1,2,4]triazolo[1,5-a]-pyrimidine fragment was suggested. Effects of oligooxyethylene fragment of the chalcone podand and acid-base catalysis on the selectivity of the cyclocondensation processes and degree of oxidation of triazolopyrimidine fragments were studied. The product structures were confirmed by IR, 1H and 13C NMR spectroscopy and X-ray diffraction study

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2011, 60 (5), 965-974.pdf
Найти похожие
12.
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
Найти похожие
13.
Инвентарный номер: нет.
   
   N 91

   
    Nucleophilic dimerization of indoline under oxidative conditions [Electronic resource] / I. S. Kovalev, D. S. Kopchuk, G. V. Zyryanov, V. L. Rusinov, O. N. Chupakhin // Mendeleev Communications. - 2014. - Vol.24, №1. - С. 40-41. - Bibliogr. : p. 41 (10 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
INDOLINE -- HYDROGEN PEROXIDE -- METHANOL
Аннотация: Oxidation of indoline with 30% hydrogen peroxide in methanol in the presence of sodium tungstate affords the dimeric 3-oxo-1’H,3H- 2,3’-biindole-1-oxide.

\\\\expert2\\nbo\\Mendeleev Communications\\2014, v.24 (1), p. 40.pdf
Найти похожие
14.
Инвентарный номер: нет.
   
   S 98

   
    Synthesis of new fluorine-containing pyrazolo[3,4-b]pyridinones [Electronic resource] / K. S. Rodygin, S. A. Rubtsova, P. A. Slepukhin, A. V. Kuchin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2011. - Vol.60, №4. - С. 733-745. - Bibliogr. : p. 745 (28 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
MICROWAVE IRRADIATION -- AMINOPYRAZOLES -- ARYLSULFANYL(DIFLUORO)METHYL GROUP
Аннотация: Methods for the synthesis of 4 R 6,7 dihydro 1H pyrazolo[3,4 b]pyridin 6 ones (R = CF2SAr and 4 CFHSAr) were developed. The derivatives with R = CF2SAr were ob tained by both heterocyclization of 1 substituted 5 aminopyrazoles with ethyl 4,4 difluoro 3 oxo 4 phenylsulfanylbutanoate and replacement of the Br atom in 4 bromodifluoromethyl 6,7 dihydro 1H pyrazolo[3,4 b]pyridin 6 ones by sodium arenethiolates. The fragment 4 CF HSAr was introduced by replacement of the Cl atom in 4 chlorofluoromethyl 6,7 dihydro 1H pyrazolo[3,4 b]pyridin 6 ones by sodium arenethiolates. Oxidation of 4 CF2SPh 6,7 dihydro 1H pyrazolo[3,4 b]pyridin 6 ones gave the corresponding sulfoxides; their structures were con firmed by X ray diffraction data

\\\\expert2\\NBO\\Russian Chemical Bulletin\\2011, 60 (4), 733-745.pdf
Найти похожие
15.
Инвентарный номер: нет.
   
   K 96

    Kuznetsov, V. A.
    Synthesis of epsilon-caprolactone with stable hydrogen peroxide adducts / V. A. Kuznetsov, M. G. Pervova, Yu. G. Yatluk // Russian Journal of Applied Chemistry. - 2013. - Vol.86, №2. - С. 176-181. - Библиогр.: с. 181 (16 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
CYCLOHEXANONE -- E-CAPROLACTONE -- HEXAFLUOROISOPROPANOL
Аннотация: Oxidation of cyclohexanone to ɛ-caprolactone with stable industrially manufactured hydrogen peroxide derivatives: adduct with urea (urea hydrogen peroxide), sodium perborate, sodium percarbonate (Persol), magnesium monoperphthalate (Dismozon) was studied. Oxidation with urea hydrogen peroxide is the most efficient in hexafluoroisopropanol in the case of preliminary removal of urea in the form of an oxalate. Oxidation with sodium perborate and percarbonate provides high yields in trifluoroacetic acid. The lowest cost process consists in interaction with sodium monoperphthalate (Persol and phthalic anhydride) in an aqueous medium

\\\\expert2\\NBO\\Russian Journal of Applied Chemistry\\2013, v. 86, N 2, p.176.pdf
Найти похожие
16.
Инвентарный номер: нет.
   
   R 35

   
    Regioselective C2-and C8-Acylation of 5,11-Dihydroindolo[3,2-b]carbazoles and the Synthesis of Their 2,8-Bis(quinoxalinyl) Derivatives [Electronic resource] / R. A. Irgashev, N. A. Kazin, G. A. Kim, G. L. Rusinov, V. N. Charushin // Synthesis-Stuttgart. - 2015. - Vol. 47, № 22. - С. 3561-3572. - Bibliogr. : p. 3572 (11 ref)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
5,11-DIHYDROINDOLO[3,2-B]CARBAZOLES -- 2-ARYLGLY-OXALS -- ACYLATION
Аннотация: An efficient approach for the double acetylation of 5,11-dihexyl- 6,12-di(hetero) aryl-substituted 5,11-dihydroindolo[3,2-b] carbazoles with acetic anhydride in the presence of boron trifluoride etherate has been developed, thus affording the corresponding 2,8-diacetyl derivatives in good yields. A similar acylation has been shown to occur by the reaction of anhydrides of other carboxylic acids. Oxidation of the obtained 2,8-diacetyl derivatives with selenium dioxide takes place on heating or under microwave irradiation, thus resulting in the formation of the corresponding 2,8-diglyoxals. The latter proved to react with aromatic o-diamines to afford new indolo[3,2-b] carbazoles bearing quinoxalinyl fragments at C-2 and C-8. Major optical properties of quinoxaline- containing indolo[3,2-b] carbazoles have been measured.

Найти похожие
17.
Инвентарный номер: нет.
   

   
    Oximes of fluoroalkyl-containing 1,3-diketones: specific features of synthesis, analysis, and thermal stability / N. S. Boltacheva, P. A. Slepukhin, M. G. Pervova [et al.] // Russian chemical bulletin. - 2022. - Vol. 71, № 7. - P1464-1473
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.

Найти похожие
18.
Инвентарный номер: нет.
   

   
    Synthesis of δ-Valerolactone Using Stable Hydrogen Peroxide Derivatives / Y. V. Solovyova, A. V. Pestov, I. S. Puzyrev [et al.] // Russian Journal of Organic Chemistry. - 2022. - Vol. 58, № 4. - P480-483
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The efficiencies of hydrogen peroxide derivatives in the Baeyer–Villiger oxidation of cyclopen­tanone to δ-valerolactone have been compared. The oxidants used were hydrogen peroxide in acetic, formic, or trifluoroacetic acid, magnesium and sodium monoperoxyphthalates, cumene hydroperoxide, and tert-butyl hydroperoxide. The oxidation was carried out in water, aqueous methanol, and water–ethyl acetate. Sodium and magnesium monoperoxyphthalates turned out to provide high conversion and selectivity under mild conditions.

Найти похожие
19.
Инвентарный номер: нет.
   

   
    Oxidizing agents in metal-catalyzed and metal-free C-H functionalization of heteroarenes / I. A. Utepova, O. N. Chupakhin, M. A. Trestsova [et al.] // Arkivoc. - 2021. - № 9. - P240-299
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
DIRECT С-H FUNCTIONALIZATION -- HETEROARENE -- OXIDIZING AGENTS
Аннотация: Oxidative C-H functionalization represents a crucial method to make new C-C, C-X (X = heteroatom) bonds. An optimal selection of the oxidizing agent goes hand in hand with the insight into the reaction mechanism. This review covers recent advances in methods of direct oxidative C-H functionalization of azines and their derivatives with heteroaromatic nucleophiles. Also we review the data on application of inorganic and organic oxidants for implementation of these reactions. C-H functionalizations under electrochemical and photocatalytic oxidation conditions are included as well.

Найти похожие
20.
Инвентарный номер: нет.
   

   
    Oximes of fluoroalkyl-containing 1,3-diketones: specific features of synthesis, analysis, and thermal stability / N. S. Boltacheva, P. A. Slepukhin, M. G. Pervova [et al.] // Russian chemical bulletin. - 2022. - Vol. 71, № 4. - P1464-1473
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.

Найти похожие
 1-20    21-40   41-60   61-62 
 
Описание базы данных
Стандартный
По словарю
Расширенный
ГРНТИ-навигатор
Статистика обращений

Сиглы отделов ЦНБ УрО РАН


  бр.ф. - Бронированный фонд

  бф - Научно-библиографический отдел

  БХЛ - Фонд художественной литературы

  ИИиА -Фонд исторической литературы в ЦНБ УрО РАН

  ИМЕТ -Отдел ЦНБ в Институте металлургии УрО РАН

  кх - Отдел фондов (книгохранениe)

  МБА - Межбиблиотечный абонемент

  мф - Методический фонд

  ок - Отдел научной каталогизации

  оку - Отдел комплектования и учета

  орф - Обменно-резервный фонд

  пф - Читальный зал деловой и патентной информации

  рк - Фонд редкой книги

  ч/з - Главный читальный зал

  эр - Зал электронных ресурсов

  

Сиглы библиотек институтов и НЦ УрО РАН
© Международная Ассоциация пользователей и разработчиков электронных библиотек и новых информационных технологий
(Ассоциация ЭБНИТ)
Яндекс.Метрика