Výsledky vyhledávání - "S. N. Ovcharov"

Synthesis of Nonsymmetrically 2,7-disubstituted 1,3-diazapyrenes, Novel Promising Supramolecular Chemistry Objects

Autor: Viktoriia Yu. Shcherbakova, O. N. Nadein, Alexander V. Aksenov, S. N. Ovcharov, Stanislav V. Shcherbakov

Publikováno v: Chemistry of Heterocyclic Compounds. 57:1017-1023

A number of nonsymmetrically 2,7-disubstituted 1,3-diazapyrenes were synthesized by the Sonogashira cross coupling of 2-substituted 7-bromobenzo[gh]perimidines with phenyl- and pentylacetylenes. A method of direct one-pot synthesis from 2-substituted

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::154d8715356582ec505f53b6ad090e17
https://doi.org/10.1007/s10593-021-03016-z

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Reactions of Malononitrile Dimer with Isothiocyanates

Autor: S. V. Shcherbakov, V. V. Dotsenko, Inna V. Aksenova, N. A. Aksenov, V. K. Kindop, A. A. Russkikh, A. V. Bespalov, S. N. Ovcharov

Publikováno v: Russian Journal of General Chemistry. 91:951-965

Abstract The reaction of 2-amino-1,1,3-tricyanopropene (malononitrile dimer) with isothiocyanates leads to 1-substituted 4,6-diamino-2-thioxo-1,2-dihydropyridine-3,5-dicarbonitriles or 4,6-diamino-2-(phenylimino)-2H-thiopyran-3,5-dicarbonitrile, depe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1630d5f25732b76c1583b6a19ef0f1a3
https://doi.org/10.1134/s1070363221060013

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New Methods of Synthesis, Structure and Aminomethylation of 4-Imino-2-(dicyanomethylene)-3-azaspiro[5.5]undecane-1,5-dicarbonitrile

Autor: V. V. Dotsenko, K. A. Frolov, S. N. Ovcharov, A. O. Kurskova, S. V. Shcherbakov, N. A. Aksenov, D. S. Krivokolysko, S. G. Krivokolysko, Inna V. Aksenova

Publikováno v: Russian Journal of General Chemistry. 91:971-984

Sequential reaction of cyclohexanone with malononitrile and 2-aminopropene-1,1,3-tricarbonitrile in the presence of potassium hydroxide or sodium ethylate in ethanol gave 4-imino-2-(dicyanomethylene)-3-azaspiro[5.5]undecane-1,5-dicarbonitrile. The la

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::10eee7af912d28b50ac2a384cec677ed
https://doi.org/10.1134/s1070363221060037

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Synthesis and Regiospecific Bromination of (2E,4E)-5-Aryl-2-(4-arylthiazol-2-yl)penta-2,4-dienenitrile

Autor: S. G. Krivokolysko, Inna V. Aksenova, B. S. Krivokolysko, V. V. Dotsenko, S. V. Shcherbakov, N. A. Aksenov, N. A. Pakholka, K. A. Frolov, S. N. Ovcharov

Publikováno v: Russian Journal of General Chemistry. 91:606-613

The reaction of (2E,4E)-5-phenyl-2-cyano-2,4-pentadienethioamide or (E)-3-(2-nitrophenyl)acrolein and cyanothioacetamide with α-bromoketones afforded new (2E,4E)-5-aryl-2-(4-arylthiazol-2-yl)penta-2,4-dienenitriles. Direct bromination of the latter

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c2e07b579f2e66ee2cd7d4b87966c0fe
https://doi.org/10.1134/s1070363221040058

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Synthesis and Analgesic Activity of New Heterocyclic Cyanothioacetamide Derivatives

Autor: Sergey G. Krivokolysko, Igor V. Bibik, S. V. Shcherbakov, S. N. Ovcharov, Victor V. Dotsenko, K. A. Frolov, N. A. Aksenov, E. Yu. Bibik, Inna V. Aksenova

Publikováno v: Russian Journal of General Chemistry. 91:154-166

The reaction of cyanothioacetamide with aromatic aldehydes and 1,3-dicarbonyl compounds followed by aminomethylation or S-alkylation gave a series of heterocyclic derivatives with a 1,2,3,4-tetrahydropyridine or 1,4,5,6,7,8-hexahydroquinoline fragmen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1891f56d66a64d047d03cdff218a0485
https://doi.org/10.1134/s107036322102002x

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Electrophilically Activated Nitroalkanes in Reactions With Carbon Based Nucleophiles

Autor: Michael Rubin, Nicolai A. Aksenov, Dmitrii A. Aksenov, S. N. Ovcharov, Alexander V. Aksenov

Publikováno v: Frontiers in Chemistry
Frontiers in Chemistry, Vol 8 (2020)

Unusual reactivity of nitroalkanes, involving formation of aci-forms (nitronic acids or nitronates) and their subsequent interaction with carbon-based nucleophiles, is surveyed in this review.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c06ba248af331f37a3cf06677336f59b
http://europepmc.org/articles/PMC7026128

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A nitroalkane-based approach to one-pot three-component synthesis of isocryptolepine and its analogs with potent anti-cancer activities

Autor: Alexander Kornienko, Véronique Mathieu, Alexander V. Aksenov, Michael Rubin, S. N. Ovcharov, Georgii D. Griaznov, Dmitrii A. Aksenov, Nicolai A. Aksenov, Annelise De Carvalho

Publikováno v: RSC Advances. 8:36980-36986

A second generation polyphosphoric acid-mediated one-pot three-component synthesis of indoloquinoline scaffold is developed. This improved version of the process involves electrophilically activated nitroalkanes for the installation of strategic C–

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::556738d03f608eb669ae8a20b53a14b9
https://doi.org/10.1039/c8ra08155g

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ANALYSIS OF THE EFFICIENCY OF MEMBRANE TECHNOLOGYFOR DRYING OF NATURAL GAS AT GAZPROM FACILITIES

Autor: E. A. Shesterikova, R. E. Shesterikova, A. Yu. Kalinichenko, S. N. Ovcharov

Publikováno v: Oil and Gas Studies. :59-67

The article presents a study on the prospects for the development of field gas treatment technology for transport using membrane plants, provides the energy efficiency study of these plants for natural gas fields.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8809866eb2218ff145f9e03b3b82a5cb
https://doi.org/10.31660/0445-0108-2017-2-59-67

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