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 Найдено в других БД:Публикации Чарушина В.Н. (6)
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Общее количество найденных документов : 17
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 1-10    11-17 
1.
Инвентарный номер: нет.
   
   R 35


   
    Regiospecific O-alkylation of 4-polyfluoroalkyl-1H-pyrimidin-2-ones / O. G. Khudina, A. E. Ivanova, Ya. V. Burgart, M. I. Kodess, V. I. Saloutin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2011. - Vol.60, №5. - С. 901-905
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
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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2.
Инвентарный номер: нет.
   
   S 98


   
    Synthesis of polyfluoroalkyl-containing 1-(4-acetoxybutyl)- and 1-(4-hydroxybutyl)pyrazoles and their tuberculostatic activity / A. E. Ivanova, O. G. Khudina, Ya. V. Burgart, V. I. Saloutin, M. A. Kravchenko // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2011. - Vol.60, №11. - С. 2396-2400
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
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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3.
Инвентарный номер: нет.
   
   S 98


   
    Synthesis, characterization and some properties of N-(2-carboxyethyl)chitosan [Text] / Yu. A. Skorik, C. A. R. Gomes, M. T.S.D. Vasconcelos, Yu. G. Yatluk // Advances in Chitin Science : Proceedings of the 5th Asia Pacific Chitin and Chitosan Symposium & Exhibition, Bangkok, Thailand, March 13-15, 2002. - Bangkoki, 2002. - Vol. 5. - P344+348 : il. - Bibliogr. : p. 348 (19 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
CHITOSAN -- CARBOXYETHYL -- ALKYLATION -- POLYAMPHOLYTE -- POTENTIOMETRIC TITRATION -- PROTONATION CONSTANTS

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4.
Инвентарный номер: нет.
   
   B 62


   
    Bis(acetylaryl) podands in the synthesis of fluorine-containing bis(beta-diketones) joined by a polyether spacer [Electronic resource] / D. L. Chizhov, P. A. Slepukhin, I. G. Ovchinnikova, O. V. Fedorova, G. L. Rusinov, V. I. Filyakova, V. N. Charushin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2010. - Vol. 59, № 11. - P2122-2125 : рис., табл. - Bibliogr. : p. 2125 (14 ref.)
ББК 54
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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5.
Инвентарный номер: нет.
   


   
    Synthesis of mycostatics based on 4-aryldiazenyl-3,5-dimethylpyrazoles / O. G. Khudina, A. E. Ivanova, Ya. V. Burgart [et al.] // Russian chemical bulletin. - 2021. - Vol. 70, № 6. - P1124-1130
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
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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6.
Инвентарный номер: нет.
   


   
    Novel pentafluorophenyl- and alkoxyphenyl-appended 2,2'-bipyridine push-pull fluorophores: a convenient synthesis and photophysical studies / T. D. Moseev, E. A. Nikiforov, M. V. Varaksin [et al.] // Synthesis. - 2021. - Vol. 53, № 19. - P3597-3607
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
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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7.
Инвентарный номер: нет.
   
   M 78


   
    Modification of 2-trifluoromethyl-1H-benzimidazole with hydroxyalkyl substituents [Electronic resource] / E. V. Shchegol'kov, A. E. Ivanova, Ya. V. Burgart, V. I. Saloutin, O. N. Chupakhin // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2013. - Vol.49, №3. - P417-420. - Библиогр.: с. 420 (7 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
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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8.
Инвентарный номер: нет.
   
   S 98


   
    Synthesis and properties of water-soluble 2-aminomethylidene derivatives of 1,3-dicarbonyl compounds [Electronic resource] / D. N. Bazhin, Yu. S. Kudyakova, T. I. Gorbunova, Ya. V. Burgart, A. Ya. Zapevalov, V. I. Saloutin // Russian Journal of General Chemistry. - 2013. - Vol.83, №7. - С. 1330-1335
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
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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9.
Инвентарный номер: нет.
   
   F 70


   
    Fluorine-containing quinazolines annulated at the pyrimidine ring [Electronic resource] / E. V. Nosova, A. A. Laeva, T. V. Trashakhova, G. N. Lipunova, P. A. Slepukhin, V. N. Charushin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2009. - Vol. 58, № 6. - P1303-1308
ББК 54
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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10.
Инвентарный номер: нет.
   
   N 10


   
    N-(2-Carboxyethyl)chitosans: Regioselective synthesis, characterisation and protolytic equilibria [Text] / Yu. A. Skorik, C. A. R. Gomes, M. T.S.D. Vasconcelos, Yu. G. Yatluk // Carbohydrate Research. - 2003. - Vol. 338, № 3. - P271-276
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
CARBOXYETHYLATION POLYSACCHARIDES -- N-(2-CARBOXYETHYL)CHITOSAN -- POLYAMPHOLYTE
Аннотация: N-(2-Carboxyethyl)chitosans were obtained by reaction of low molecular weight chitosan with a low degree of acetylation and 3-halopropionic acids under mild alkaline media (pH 8-9, NaHCO3) at 60°C. The chemical structure of the derivatives obtained was determined by 1H and 13C NMR spectroscopies. It was found that alkylation of chitosan by 3-halopropionic acids proceeds exclusively at the amino groups. The products obtained are described in terms of their degrees of carboxyethylation and ratio of mono-, di-substitution and free amine content. The protonation constants of amino and carboxylate groups of a series of N-(2-carboxyethyl)chitosans were determined by pH-titration at ionic strength 0.1 M KNO3 and 25°C. © 2002 Elsevier Science Ltd. All rights reserved.

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 1-10    11-17 
 

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