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Публикации Черешнева В.А.
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1.
Инвентарный номер: нет.
   

   
    3-Methylidene-2,4-dioxo-4-pentafluorophenylbutanoates in the Synthesis of Heterocycles [Electronic resource] / A. S. Fokin, Ya. V. Burgart, V. I. Saloutin, O. N. Chupakhin // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2005. - Vol. 41, № 9. - P1354-1358
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: 3-Ethoxy- and 3-arylaminomethylidene-2,4-dioxo-4-pentafluorophenylbutanoates undergo cyclization by the action of hydrazine hydrate and phenylhydrazine to give ethyl 4-pentafluorobenzoylpyrazole-5-carboxylates. The reaction of 3-ethoxymethylidene-2,4-dioxo-4-pentafluorophenylbutanoate with o-phenylene-diamine leads to formation of 3-[2-(2-aminophenylamino)-1-pentafluorobenzoylethenyl]-1,2-dihydroquinoxa-lin-2-one. 3-Arylaminomethylidene-2,4-dioxo-4-pentafluorophenylbutanoates react with o-phenylenediamine to afford 3-(1-aryl-5,6,7,8-tetrafluoro-4-oxo-1,4-dihydroquinolin-3-yl)-1,2-dihydroquinoxalin-2-ones and/or 3-(2-arylamino-1-pentafluorobenzoylethenyl)-1,2-dihydroquinoxalin-2-ones

\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2005, 41 (9), 1374-1376.pdf
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2.
Инвентарный номер: нет.
   
   G 33

    Gein, V. L.
    A novel four-component synthesis of ethyl 6-amino-4-aryl-5-cyano-2,4-dihydropyrano[2,3-c]pyrazole-3-carboxylates [Electronic resource] / V. L. Gein, T. M. Zamaraeva, P. A. Slepukhin. - [Б. м. : б. и.]. - Bibliogr. : p. 4528 (26 ref.). - Б. ц.
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
MULTICOMPONENT REACTION -- AROMATIC ALDEHYDES -- SODIUM DIETHYLOXALOACETATE
Аннотация: Ethyl 6-amino-4-aryl-5-cyano-2,4-dihydropyrano[2,3-с]pyrazole-3-carboxylates were synthesized via a four-component reaction of the sodium salt of diethyloxaloacetate, an aromatic aldehyde, hydrazine hydrate, and malononitrile. The products were obtained in moderate to high yields.

\\\\expert2\\nbo\\Tetrahedron Letters\\2014, v. 55, p. 4525.pdf
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3.
Инвентарный номер: нет.
   
   A 37

   
    Alkyl 3-fluoroalkyl-3-oxopropionates in reactions with azolyldiazonium salts [Electronic resource] / E. V. Shchegol'kov, E. V. Sadchikova, Ya. V. Burgart, V. I. Saloutin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2008. - Vol. 57, № 3. - P612-618
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Alkyl 3-fluoroalkyl-3-oxopropionates react with antipyrinyldiazonium chloride to form 2-antipyrinylhydrazono-3-fluoroalkyl-3-oxopropionates. The use in these reactions of hetaryldiazonium salts, containing NH group in the ? position, leads to alkyl 7-fluoroalkyl-7-hydroxy-4,7- dihydroazolo[5,1-c]triazine-6-carboxylates. 3-Amino-1H-1,2,4-triazole, 3-amino-4-ethoxycar- bonyl-1H-pyrazole, and 5-amino-4-ethoxycarbonyl-1H-imidazole were used as the heterocyclic component

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2008, 57 (3), 612.pdf
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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.
   

   
    An effective route to dithieno[3,2- B:2′,3′- D ]thiophene-based hexaheteroacenes / N. S. Demina, R. A. Irgashev, N. A. Kazin [et al.] // Synlett. - 2021. - Vol. 32, № 10. - P1009-1013
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
BENZOTHIENOTHIENOTHIENOINDOLES -- AMINOTHIOPHENES -- ARYLHYDRAZINES
Аннотация: A series of 12H-[1]benzo[4′′,5′′]thieno[2′′,3′′:4′,5′]thieno[2′,3′:4,5]thieno[3,2-b]indoles were efficiently prepared in three steps starting from available benzo[b]thieno[2,3-d]thiophen-3(2H)-ones. These fused ketones were treated with the Vilsmeier reagent and hydroxylamine hydrochloride to give the corresponding 3-chlorobenzo[b]thieno[2,3-d]thiophene-2-carbonitriles, which then reacted with methyl sulfanylacetate to form methyl 3-aminobenzo[4′,5′]thieno[2′,3′:4,5]thieno[3,2-b]thiophene-2-carboxylates, in accordance with the Fiesselmann thiophene synthesis protocol. Finally, the desired N,S-heterohexacenes were obtained by conversion of these fused 3-aminothiophene-2-carboxylates into the corresponding 3-aminothiophene intermediates, which acted as synthetic equivalents of thiophen-3(2H)-ones, followed by their acid-promoted reaction with arylhydrazines, in accordance with the Fischer indolization procedure.

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6.
Инвентарный номер: нет.
   
   B 57

   
    Biginelli condensations of fluorinated 3-oxo esters and 1,3-diketones [Text] / V. I. Saloutin, Ya. V. Burgart, O. G. Kuzueva, C. O. Kappe, O. N. Chupakhin // Journal of Fluorine Chemistry. - 2000. - Vol. 103, № 3. - P17-23
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Condensation of fluorinated 3-oxo esters or 1,3-diketones with benzaldehyde and (thio)urea results in the diastereoselective formation of 4-fluoroalkyl-4-hydroxy-2-oxo(thioxo)-6-phenyl-hexahydropyrimidine-5-carboxylates from which by dehydration under acidic conditions the corresponding 6-fluoroalkyl-2-oxo(thioxo)-4-phenyl-1,2,3,4-tetrahydropyrimidine-5-carboxylates were obtained. Under the same conditions, hexafluoroacetylacetone furnishes 4,6-dihydroxy-4,6-di(trifluoromethyl)-hexahydropyrimidin-2-one. Some further reactions of these pyrimidine derivatives leading to fused heterocycles are described.????

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7.
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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8.
Инвентарный номер: нет.
   
   C 98

   
    Cyclopropanation of 2-arylmethylidenemalononitriles, alkyl 3-aryl-2-cyanoprop-2-enoates, and N-substituted 3-aryl-2-cyanoprop-2-enamides with bromine-containing zinc enolates [Electronic resource] / V. V. Shchepin, Yu. G. Stepanyan, P. S. Silaichev, M. A. Ezhikova, M. I. Kodess // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2007. - Vol. 43, № 7. - P1002-1007
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Zinc enolates derived from 2,2-dibromoindan-1-one and 2,2-dibromo-1,2,3,4-tetrahydronaphthalen-1-one reacted with 2-arylmethylidenemalononitriles, alkyl 3-aryl-2-cyanoprop-2-enoates, and N-substituted 3-aryl-2-cyanoprop-2-enamides to give, respectively, 3-aryl-1?-oxo-1?,3?-dihydrospiro[cyclopropane-1,2?-indene]-2-2-dicarbonitriles, 3-aryl-1?-oxo-3?,4?-dihydro-1?H-spiro[cyclopropane-1,2?-naphthalene]-2,2-dicarbonitriles, alkyl 3-aryl-2-cyano-1?-oxo-1?,3?-dihydrospiro[cyclopropane-1,2?-indene]-2-carboxylates, alkyl 3-aryl-2-cyano-1?-oxo-3?,4?-dihydro-1?H-spiro[cyclopropane-1,2?-naphthalene]-2-carboxylates, and N-substituted 3-aryl-2-cyanol-1?-oxo-3?,4?-dihydro-1?H-spiro[cyclopropane-1,2?-naphthalene]-2-carboxamides as a single diastereoisomer. The stereoconfiguration of the products was determined by 1H and 13C NMR spectroscopy

\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2007, 43 (7), 1002.pdf
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9.
Инвентарный номер: нет.
   
   C 98

   
    Cyclopropanation of N-substituted 3-aryl-2-cyanoprop-2-enamides and derivatives of 5,5-Dimethyl-2-oxo-2,5-dihydrofuran-3-carboxylic acid and 2-oxochromene-3-carboxylic acid with bromine-containing zinc enolates [Electronic resource] / V. V. Shchepin, P. S. Silaichev, Yu. G. Stepanyan, M. M. Kalyuzhnyi, N. Yu. Russkikh, M. I. Kodess // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2006. - Vol. 42, № 7. - P973-980
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Zinc enolates derived from 1-aryl-2,2-dibromoalkanones react with N-substituted 3-aryl-2-cyanoprop-2-enamides and 5,5-dimethyl-2-oxo-2,5-dihydrofuran-3-carboxylic and 2-oxochromene-3-carboxylic acid derivatives to give, respectively, N-substituted 2-alkyl-3-aryl-2-aroyl-1-cyanocyclopropane-1-carboxamides, 6-(4-bromobenzoyl)-4,4,6-trimethyl-2-oxo-3-oxabicyclo[3.1.0]hexane-1-carboxylic acid ethyl ester and morpholide, and 1-alkyl-1-aroyl-2-oxo-1a,7b-dihydrocyclopropla[c]chromene-1a-carboxylic acids as a single geometric isomer. Treatment of 1-alkyl-1-aroyl-2-oxo-1a,7b-dihydrocyclopropa[c]chromene-1a-carboxylic acids with carboxylic acid anhydrides leads to the formation of the corresponding 9c-alkyl-1-aryl-3,4-dioxo-9b,9c-dihydro-2,5-dioxacyclopenta[2,3]cyclopropa[1,2-a]naphthalen-1-yl carboxylates

\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2006, 42 (7), 973.pdf
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10.
Инвентарный номер: нет.
   

   
    Esters of polyfluorosalicylic acids in reactions with amines / E. V. Shchegolkov, I. V. Shchur, Y. V. Burgart, V. I. Saloutin // AIP conference proceedings. - 2022. - Vol. 2390. - Ст. 020078
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
CHEMICAL COMPOUNDS
Аннотация: The reactions of alkyl tri-and tetrafluorosalicylates with diethylamine led to formation of the stable salts regardless of the conditions. Therein, ethyl esters were undergone dealkylation leading to formation of diethylammonium carboxylates. Methyl tetrafluorosalicylate was subject to similar transformations, while trifluoro-containing analog gave salt at the hydroxyl group and in which ester fragment was remained.

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