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 Найдено в других БД:Каталог книг и продолжающихся изданий (7)Каталог препринтов УрО РАН (1975 г. - ) (1)Труды Института высокотемпературной электрохимии УрО РАН (8)Труды Института истории и археологии УрО РАН (2)Труды сотрудников Института теплофизики УрО РАН (6)Труды сотрудников Института химии твердого тела УрО РАН (16)Расплавы (8)Публикации Черешнева В.А. (1)Публикации Чарушина В.Н. (9)Каталог библиотеки ИЭРиЖ УрО РАН (1)Библиометрия (2)
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Общее количество найденных документов : 48
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1.
Инвентарный номер: нет.
   
   A 10


   
    A practicable synthesis of 2,3-disubstituted 1,4-dioxanes bearing a carbonyl functionality from α,β-unsaturated ketones using the williamson strategy / A. De, A. Majee, S. Santra [et al.] // Organic & biomolecular chemistry. - 2021. - Vol. 19, № 6. - P1278-1286
ББК Г
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: We have observed that a reagent combination of NaIO4 and NH2OH·HCl reacts with α,β-unsaturated ketones followed by the nucleophile ethylene glycol allowing the synthesis of 2,3-disubstituted 1,4-dioxanes using cesium carbonate as a base under Williamson ether synthesis. This reaction is useful for the synthesis of functionalized 1,4-dioxane having a carbonyl functionality. A variety of 2,3-disubstituted 1,4-dioxanes have been synthesized using these reaction conditions. A probable reaction mechanism has also been proposed.

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2.
Инвентарный номер: нет.
   
   A 18


   
    Acid-base properties and prototropic tautomerism of isomeric 1,2,4-triazin-3- and -5-ones [Electronic resource] / I. V. Khabibulina, R. E. Trifonov, A.P. Volovodenko, M. S. Eremenkova, O. N. Chupakhin, V. L. Rusinov, G. V. Zyryanov, V. A. Ostrovskii // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2004. - Vol. 40, № 3. - P426-430. - Bibliogr. : p. 430 (40 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ACID -- BASE -- TRIAZINE DERIVATIVE -- AQUEOUS SOLUTION
Аннотация: The acidity and basicity constants of isomeric phenyl(aryl)-1,2,4-triazin- 3- and -5-ones in aqueous solution were determined by spectrophotometry: pK a = 7.3-6.2; pKBH+ = 0.1 to -2.2. 1,2,4-Triazin-3-ones are weaker bases than the corresponding 1,2,4-triazin-5-ones. According to the AM1 calculations, the most thermodynamically favorable tautomer in the gas phase is the oxo form: namely, 2H-tautomers of the neutral bases and 2,4-H,H +-tautomers of the conjugate acids.

\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2004, 40 (3), 426.pdf
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3.
Инвентарный номер: нет.
   


   
    Addition of the oxirane derivatives to CO2 catalyzed by Lewis bases under mild conditions / I. S. Gabov, V. A. Kuznetsov, I. S. Puzyrev, A. V. Pestov // Russian chemical bulletin. - 2021. - Vol. 70, № 6. - P1118-1123
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
CYCLIC CARBONATES -- CARBON DIOXIDE -- LEWIS BASES -- QUANTUM CHEMICAL CALCULATIONS
Аннотация: The addition of the oxirane derivatives to CO2 was found to occur without Lewis acid involvement but requires the presence of the Lewis base. The reaction was carried out at atmospheric pressure by CO2 bubbling through the starting ether in the presence of a source of halide anion or trichloroacetate anion, which provides the formation of ethylenecarbonate derivatives in preparative amounts. The reactivity of halide anions in the addition of the studied oxirane derivatives to CO2 decreases in the order I− > Br− > Cl− > F− >> Cl3CCOO−. The quantum chemical calculations of the reaction of CO2 with epichlorohydrin show that the reaction consists of consecutive processes of nucleophilic addition and nucleophilic ipso-substitution, which explains the catalytic effect of the Lewis bases and the order of their activity.

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4.
Инвентарный номер: нет.
   


    Irgashev, R. A.
    An approach to the construction of benzofuran-thieno[3,2- b]indole-cored N,O,S-heteroacenes using fischer indolization / R. A. Irgashev, N. A. Kazin, G. L. Rusinov // ACS omega. - 2021. - Vol. 6, № 47. - P32277-32284
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: A series of 6H-benzofuro[2′,3′:4,5]thieno[3,2-b]indoles were readily synthesized from methyl 3-aminothieno[3,2-b]benzofuran-2-carboxylates using a one-pot procedure with Fischer indolization as the key step. At the same time, 3-aminothieno[3,2-b]benzofuran-2-carboxylates were prepared from 3-chlorobenzofuran-2-carbaldehydes in three steps, including replacement of the Cl atom at the C-3 position of these starting substrates onto the -SCH2CO2Me moiety, conversion of the CHO group at the C-2 position into the CN group, followed by base-promoted cyclization of the formed carbonitrile. The present route was elaborated by us because we failed to obtain directly the desired 3-aminothiophene-2-carboxylate by reaction of 3-chlorobenzofuran-2-carbonitrile with methyl thioglycolate in the presence of various bases. In turn, 3-chlorobenzofuran-2-carbaldehydes were prepared from benzofuran-3(2H)-ones following the Vilsmeier–Haack–Arnold reaction.

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5.
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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6.
Инвентарный номер: нет.
   
   P 49


    Pestov, A. V.
    Copper and nickel chelate complexes with polydentate N,O-ligands: structure and magnetic properties of polynuclear complexes [Electronic resource] / A. V. Pestov, P. A. Slepukhin, V. N. Charushin // Russian Chemical Reviews. - 2015. - Vol. 84, № 3. - С. 310-333. - Bibliogr. : p. 331-333(182 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
HYDROGEN-BONDED BRIDGES -- RAY CRYSTAL-STRUCTURE -- SCHIFF-BASE LIGAND
Аннотация: A comparative analysis of the structures of copper(II) and nickel(II) chelate complexes with N-substituted 2-aminoethanols, 3-aminopropan- 1 -ols, glycines and beta-alanines is performed. It is shown that tetradentate ligands based on 3-aminopropan- 1 -ol and P-alanine, sterically hindered 2-aminoethanol derivatives and tridentate enamino ketone derivatives tend to form oligonuclear copper(II) and nickel(II) complexes. Glycine derivatives do not provide the formation of oligonuclear copper(II) and nickel(II) complexes. The magnetic properties of a number of polynuclear complexes are compared.

\\\\expert2\\nbo\\Russian Chemical Reviews\\2015, V.84, N3, p. 310-333.pdf
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7.
Инвентарный номер: нет.
   


   
    Dinuclear copper(II) complex with novel N,N’,N”,O-tetradentate schiff base ligand containing trifluoromethylpyrazole and hydrazone moieties / D. N. Bazhin, Y. S. Kudyakova, P. A. Slepukhin, Y. V. Burgart, V. I. Saloutin, N. N. Malysheva, A. N. Kozitsina, A. V. Ivanova, A. S. Bogomyakov // Mendeleev Communications. - 2018. - Vol. 28, № 1. - P202-204
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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8.
Инвентарный номер: нет.
   
   F 62


   
    Five-membered 2,3-dioxo heterocycles: LXXVIII. Acylation of fischer's base with aroylketenes. Crystalline and molecular structure of (1E, 3Z)-4-(4-chlorophenyl)-4-hydroxy-1-(1,3,3-trimethyl-2,3-dihydro-1H-indol-2-ylidene)but-3-en-2-one [Electronic resource] / V. V. Konovalova, Yu. V. Shklyaev, P. A. Slepukhin, A. N. Maslivets // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2011. - Vol. 47, № 7. - P1062-1065. - Bibliogr. : p. 1065 (11 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Aroylketenes generated by thermolysis of 6-aryl-2,2-dimethyl-4H-1,3-dioxin-4-ones reacted with 1,3,3-trimethyl-2-methylidene-1,3-dihydro-2H-indole (Fischer's base) to produce (1E,3Z)-4-aryl-4-hydroxy-1-(1,3,3-trimethyl-1,3-dihydro-2H-indol-2-ylidene)but-3-en-2-ones. The crystalline and molecular structures of (1E,3Z)-4-(4-chlorophenyl)-4-hydroxy-1-(1,3,3-trimethyl-2,3-dihydro-1H-indol-2-ylidene)but-3-en-2-one were determined by X-ray analysis

\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2011, 47 (7), 1062.pdf
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9.
Инвентарный номер: нет.
   
   H 85


   
    HPLC separation of 2-aryloxycarboxylic acid enantiomers on chiral stationary phases / A. A. Tumashov, S. A. Vakarov, L. S. Sadretdinova [et al.] // Russian chemical bulletin. - 2021. - Vol. 70, № 5. - P900-907
ББК Г
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The possibility for separating enantiomers of a number of practically significant 2-aryloxycarboxylic acids was studied by normal- and reversed-phase HPLC on popular chiral stationary phases. The best separation parameters were achieved on the chiral phases with the polysaccharide base Chiralcel OD-H and Chiralpack AD under the normal-phase HPLC conditions. The (S)- and (R)-enantiomers of 2-(1-naphthyloxy)- and 2-(2-iodophenoxy)propionic acids with enantiomeric excess ee 99% were isolated using preparative chiral HPLC.

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10.
Инвентарный номер: нет.
   
   K 46


   
    Kinetic resolution of heterocyclic amines by reaction with optically active acid chlorides. The effect of reaction conditions on the diastereoselectivity of acylation of (±)-3-methyl-2,3-dihydro-4H-1,4-benzoxazine [Electronic resource] / V. P. Krasnov, G. L. Levit, M. A. Koroleva, I. M. Bukrina, L. Sh. Sadretdinova, I. N. Andreeva, V. N. Charushin, O. N. Chupakhin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2004. - Vol. 53, № 6. - P1253-1256
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The influence of the reaction conditions (solvent, base) on the diastereoselectivity of acylation of (±)-3-methyl-2,3-dihydro-4H-1,4-benzoxazine with (S)-naproxen and N-tosyl-(S)-proline chlorides was studied. The highest diastereoselectivity was observed for the reaction carried out in benzene in the presence of aliphatic tertiary amines

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2004, 53 (6), 1253.pdf
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