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1.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Khudina O. G., Ivanova A. E., Burgart Ya. V., Gerasimova N. A., Evstigneeva N. P., Saloutin V. I.
Заглавие : Synthesis of mycostatics based on 4-aryldiazenyl-3,5-dimethylpyrazoles
Место публикации : Russian chemical bulletin. - 2021. - Vol. 70, № 6. - С. 1124-1130
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): 3-arylhydrazinylidenepentane-2,4-dione--condensation--hydrazines--4-aryldiazenyl-3,5-dimethylpyrazoles
Аннотация: The condensation of 3-arylhydrazinylidenepentane-2,4-diones with hydrazine hydrate, 2-hydroxyethylhydrazine, benzylhydrazine hydrochloride, and 4-hydrazinylbenzenesulfonamide hydrochloride gave 4-aryldiazenyl-3,5-dimethylpyrazoles. An alternative route to the synthesis of N-substituted 4-aryldiazenylpyrazoles is based on the alkylation of NH-pyrazoles with haloalkanes. The synthesized compounds were tested for antimicrobial activity against eight pathogenic dermatophytes, yeast-like fungi of the Candida genus and the bacteria Neisseria gonorrhoeae. The structure—activity relationship analysis showed that 4-tolyldiazenylpyrazoles bearing H, AcO(CH2)4, or HO(CH2)4 substituents at the N(1) atom have the highest mycostatic activity against all the dermatophyte strains under study. However, 4-aryldiazenyl-3,5-dimethylpyrazoles proved to be quite cytotoxic against the McCoy B cell line.
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2.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Moseev T. D., Nikiforov E. A., Varaksin M. V., Starnovskaya E. S., Savchuk M. I., Nikonov I. L., Kopchuk D. S., Zyryanov G. V., Chupakhin O. N., Charushin V. N.
Заглавие : Novel pentafluorophenyl- and alkoxyphenyl-appended 2,2'-bipyridine push-pull fluorophores: a convenient synthesis and photophysical studies
Место публикации : Synthesis. - 2021. - Vol. 53, № 19. - С. 3597-3607
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): 2,2′-bipyridines--1,2,4-triazines--polyfluoroarenes
Аннотация: A convenient method for the synthesis of new highly in non-polar solvents soluble photoactive pentafluorophenyl-substituted and extended alkoxyphenyl-substituted 2,2′-bipyridines is reported. The synthetic strategy for the preparation of such ligands involves a sequence of several structural transformations, such as O-alkylation, nucleophilic substitution of hydrogen (SN H) in 1,2,4-triazine precursors via the ‘addition–elimination’ scheme, and the subsequent conversion of the obtained 1,2,4-triazines into 2,2′-bipyridines by means of the aza-Diels–Alder reaction. The photophysical properties of the synthesized novel pentafluoroaryl-substituted 2,2′-bipyridines were comprehensively studied. The obtained photophysical data indicate the competitive advantages of the herein reported pentafluoroarylated push–pull fluorophores, bearing extended aliphatic moieties, over their analogues containing benzoxy or phenolic fragments in terms of improvement in quantum yield and well-pronounced positive solvatochromism confirmed by the mathematical analysis according to the Lippert–Mataga equation.
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3.

Вид документа : Статья из журнала
Шифр издания : 54/M 78
Автор(ы) : Shchegol'kov E. V., Ivanova A. E., Burgart Ya. V., Saloutin V. I., Chupakhin O. N.
Заглавие : Modification of 2-trifluoromethyl-1H-benzimidazole with hydroxyalkyl substituents
Место публикации : Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2013. - Vol.49, №3. - С. 417-420
Примечания : Библиогр.: с. 420 (7 ref.)
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): 1h-benzimidazole --4-bromobutyl acetate--hydrogen chloride
Аннотация: Alkylation of 2-(trifluoromethyl)-1H-benzimidazole with 4-bromobutyl acetate gave 4-[2-(trifluoromethyl)-1H-benzimidazol-1-yl]butyl acetate which was deacylated by the action of hydrogen chloride in anhydrous ethanol. 4-[2-(Trifluoromethyl)-1H-benzimidazol-1-yl]butan-1-ol thus formed showed a moderate tuberculostatic activity. Alkylation of the title compound with chloromethyloxirane afforded a mixture of 1-chloro-3-[2-(trifluoromethyl)-1H-benzimidazol-1-yl]-propan-2-ol and 1-(oxiran-2-ylmethyl)-2-trifluoromethyl-1H-benzimidazole. A new procedure was proposed for the synthesis of 2-[(2-trifluoromethyl-1Hbenzimidazol-1-yl)methoxy]ethyl acetate
\\\\expert2\\NBO\\Russian Journal of Organic Chemistry\\2013, 49, (3), 417-420.pdf
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4.

Вид документа : Статья из журнала
Шифр издания : 54/S 98
Автор(ы) : Bazhin D. N., Kudyakova Yu.S., Gorbunova T. I., Burgart Ya. V., Zapevalov A. Ya., Saloutin V. I.
Заглавие : Synthesis and properties of water-soluble 2-aminomethylidene derivatives of 1,3-dicarbonyl compounds [Электронный ресурс]
Место публикации : Russian Journal of General Chemistry. - 2013. - Vol.83, №7. - С. 1330-1335
Систем. требования: http://download.springer.com/static/pdf/754/art%253A10.1134%252FS1070363213070050.pdf?auth66=1397364929_ef32f46a7d782f7c38dbe4b8df9caa81&ext=.pdf
Примечания : 11.04.2014
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): synthesis--n,n-diphenylguanidine --aminomethylidene
Аннотация: A series of [(2-dimethylamino)ethylamino]methylidene-1,3-dicarbonyl compounds was synthesized for the first time starting from the corresponding 2-ethoxymethylidene derivatives and N,N-dimethylethylenediamine. It was shown that further alkylation of aminomethylidene derivatives with methyl iodide occurs regioselectively at the tertiary nitrogen atom. Quaternization products obtained exhibit high corrosion inhibition of mild steel in hydrochloric acid medium
\\\\expert2\\nbo\\Russian Journal of General Chemistry\\2013, V. 83, N 7, p. 1330–1335.pdf
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5.

Вид документа :
Шифр издания : 54/R 35
Автор(ы) : Khudina O. G., Ivanova A. E., Burgart Ya. V., Kodess M. I., Saloutin V. I.
Заглавие : Regiospecific O-alkylation of 4-polyfluoroalkyl-1H-pyrimidin-2-ones
Место публикации : Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2011. - Vol.60, №5. - С. 901-905
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): iodomethane--4-bromobutyl acetate--o-regioisomers
Аннотация: The alkylation of 4-polyfluoroalkylpyrimidin-2-ones with iodomethane, 4-bromobutyl acetate, and epichlorhydrin occurs regiospecifically to form O-regioisomers.
\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2011, 60 (5), 901-905.pdf
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6.

Вид документа :
Шифр издания : 54/S 98
Автор(ы) : Ivanova A. E., Khudina O. G., Burgart Ya. V., Saloutin V. I., Kravchenko M. A.
Заглавие : Synthesis of polyfluoroalkyl-containing 1-(4-acetoxybutyl)- and 1-(4-hydroxybutyl)pyrazoles and their tuberculostatic activity
Место публикации : Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2011. - Vol.60, №11. - С. 2396-2400
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): synthesis--pyrazoles--tuberculostatic activity
Аннотация: Alkylation of polyfluoroalkyl-containing pyrazoles with 4-bromobutyl acetate in acetone in the presence of potassium carbonate leads to a mixture of isomeric 1-(4-acetoxybutyl)-3-fluoroalkyl- and 1-(4-acetoxybutyl)-5-fluoroalkylpyrazoles, which in a number of cases were successfully separated by HPLC. Deacylation in acidic medium with gaseous hydrogen chloride and in basic medium with gaseous ammonia leads to 1-(4-hydroxybutyl)pyrazoles, which manifest moderate tuberculostatic activity
\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2011, 60 (11), 2396-2400.pdf
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7.

Вид документа : Статья из журнала
Шифр издания : 54/B 62
Автор(ы) : Chizhov D. L., Slepukhin P. A., Ovchinnikova I. G., Fedorova O. V., Rusinov G. L., Filyakova V. I., Charushin V. N.
Заглавие : Bis(acetylaryl) podands in the synthesis of fluorine-containing bis(beta-diketones) joined by a polyether spacer [Electronic resource]
Место публикации : Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2010. - Vol. 59, № 11. - С. 2122-2125: рис., табл.
Систем. требования: http://www.springerlink.com/content/g7075u3235l32p22/fulltext.pdf
Примечания : Bibliogr. : p. 2125 (14 ref.). - 28.10.2011 г.
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: O-Alkylation of 2-acetylphenols with ?,?-dichloro derivatives of oligoethylene glycols in the presence of KOH and Al2O3 in DMF gave the corresponding podands. Their condensation with ethyl trifluoroacetate afforded fluorine-containing bis(?-diketones) with the aryl fragments linked by conformationally flexible polyether spacers
\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2010, 59 (11), 2122-2125.pdf
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8.

Вид документа : Статья из журнала
Шифр издания : 54/F 70
Автор(ы) : Nosova E. V., Laeva A. A., Trashakhova T. V., Lipunova G. N., Slepukhin P. A., Charushin V. N.
Заглавие : Fluorine-containing quinazolines annulated at the pyrimidine ring [Electronic resource]
Место публикации : Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2009. - Vol. 58, № 6. - С. 1303-1308
Систем. требования: http://www.springerlink.com/content/e37k3p243604xn05/fulltext.pdf
Примечания : 28.10.2011 г.
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Fluorine-containing quinazolines annulated at the sides [a] and [c] were synthesized by the reaction of 2- and 4-hydrazino-substituted quinazolines with aldehydes and subsequent oxidative cyclization. Annulation at the side [b] was performed by alkylation of 2-alkylthio-4(3H)-quinazolinones with bromoethanol and ipso-substitution of the alkylthio group
\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2009, 58 (6), 1303-1308.pdf
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9.

Вид документа : Статья из журнала
Шифр издания : 54/N 10
Автор(ы) : Pestov A. V., Skorik Yu.A., Kogan G., Yatluk Yu. G.
Заглавие : N-alkylation of chitosan by beta-halopropionic acids in the presence of various acceptors
Место публикации : Journal of Applied Polymer Science . - 2008. - Vol. 108, № 1. - С. 119-127
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: N-carboxyethylation of chitosan by -halopropionic acids in the presence of various proton and halogen ion acceptors was investigated. It has been observed that carboxyethylation of chitosan in aqueous medium is accompanied by the by-processes of hydrolysis and dehydrohalogenation of the -halopropionic acids yielding -hydroxypropionic acid, bis(2-carbox-yethyl) ether, and acrylic acid. Degree of carboxyethyl substitution (DS) of chitosan and the relative rates of the by-processes varied significantly depending on the conditions used and nature of the proton or halogen ion acceptor. At carboxyethylation of chitosan with the alkaline -bromopropionates, the DS increased in the order Cs+ Rb- K+ sim; Na+ Li-.
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10.

Вид документа : Статья из журнала
Шифр издания : 54/A 10
Автор(ы) : Belskaia N. P., Deryabina T. G., Koksharov A.V., Kodess M. I., Lebedev A.T., Bakulev V. A.
Заглавие : A novel approach to fused 1,2,4-triazines by intramolecular cyclization of 1,2-diaza-1,3-butadienes bearing allyl(propargyl)sulfanyl and cyclic tert-amino groups
Место публикации : Tetrahedron Letters. - 2007. - Vol. 48, № 52. - С. 9128-9131
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: 3-Allyl- and 3-prop-1-ynylsulfanyl-2-arylazo-3-cycloalkylamino-acrylonitriles undergo cyclization under mild conditions to afford the novel heterocyclic systems 1,4,6,7,8,8a-hexahydropyrrolo[2,1-c][1,2,4]-triazine-4-thione, 1,4,6,7,9,9a-hexahydro-[1,4]oxazino[3,4-c][1,2,4]triazine and 1,6,7,8,9,9a-hexahydro-4H-pyrido[2,1-c][1,2,4]triazine via a number of consecutive pericyclic reactions
\\\\Expert2\\nbo\\Tetrahedron Letters\\2007, v. 48, p.9128.pdf
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