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Общее количество найденных документов : 42
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 1-10    11-20   21-30   31-40   41-42 
1.
Инвентарный номер: нет.
   
   S 98


   
    Synthesis of substituted pyrido[1,2-a]pyrimidines from 2-arylmethylidene-3-fluoroalkyl-3-oxopropionates [Electronic resource] / M. V. Pryadeina, Ya. V. Burgart, M. I. Kodess, V. I. Saloutin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2005. - Vol. 54, № 12. - P2841-2845
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
CYCLOCONDENSATION -- REGIOISOMERISM -- 2-ARYLMETHYLIDENE
Аннотация: Cyclocondensation of 2-arylmethylidene-3-fluoroalkyl-oxopropionates with 2-amino-pyridine occurs at both the polyfluoroacylvinyl and alkoxycarbonylvinyl fragments to give alkyl 4-aryl-2-polyfluoroalkyl-4H-pyrido[1,2-a]pyrimidine-3-carboxylates and 4-aryl-2-hydroxy-3-polyfluoroacyl-4H-pyrido[1,2-a]pyrimidines, respectively. When treated with copper(II) acetate, the pyrido[1,2-a]pyrimidines yield metal complexes

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2005, 54 (12), 2841-2845.pdf
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2.
Инвентарный номер: нет.
   
   G 65


    Goryaeva, M. V.
    Synthesis of pyrimido[1,2-alfa]benzimidazoles from ethyl 2-ethoxymethylidene-3-oxo-3-(polyfluoroalkyl)propionates [Electronic resource] / M. V. Goryaeva, Ya. V. Burgart, V. I. Saloutin // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2010. - Vol. 46, № 3. - P432-438 : рис., табл. - Bibliogr. : p. 438 (22 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
BENZIMIDAZOLES -- ETHYL -- PROPIONATES
Аннотация: Cyclization of ethyl 2-ethoxymethylidene-3-oxo-3-polyfluoroalkylpropionates with benzimidazol-2-amine in boiling 1,4-dioxane followed two concurrent pathways with participation of fluoroacyl and ethoxycarbonyl fragments and formation of, respectively, ethyl 4-hydroxy-4-polyfluoroalkyl-1,4-dihydropyrimido-[1,2-alfa]benzimidazole-3-carboxylates and 3-polyfluoroacylpyrimido[1,2-alfa]benzimidazol-4-ols. Dihydropyrimido[1,2-alfabenzimidazole derivatives undergo dehydration to give ethyl 4-(polyfluoroalkyl)pyrimido[1,2-alfa]benzimidazole-3-carboxylates, whereas the hydroxy group in 3-polyfluoroacylpyrimido[1,2-a]benzimidazol-4-ols is capable of being replaced by the amino group of the second benzimidazole molecule with formation of 4-(1H-benzimidazol-2-ylamino)-3-polyfluoroacylpyrimido[1,2-alfa]benzimidazoles.

\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2010, 46 (3), 432-438.pdf
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3.
Инвентарный номер: нет.
   
   S 98


   
    Synthesis of methyl 7-aryl-6-(2-thenoyl)-4,7-dihydro-tetrazolo[1,5-a]pyrimidine-5-carboxylates and their reaction with hydrazine hydrate [Electronic resource] / V. L. Gein, V. V. Mishunin, E. P. Tsyplyakova, M. I. Vakhrin, P. A. Slepukhin // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2011. - Vol. 47, № 7. - P1077-1082. - Bibliogr. : p. 1082 (5 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Fusion of methyl 4-(2-thienyl)-2,4-dioxobutanoate with 1H-tetrazol-5-amine monohydrate and aromatic aldehyde gave methyl 7-aryl-6-(2-thenoyl)-4,7-dihydrotetrazolo[1,5-a]pyrimidine-5-carboxylates which reacted with an equimolar amount of hydrazine hydrate at 180-190A degrees C under solvent-free conditions to produce 9-aryl-8-(2-thienyl)-4,9-dihydrotetrazolo[1',5': 1,2]pyrimido[4,5-d]pyridazin-5(6H)-ones

\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2011, 47 (7), 1077.pdf
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4.
Инвентарный номер: нет.
   
   S 98


   
    Synthesis of fluorine-containing quinoline-2,3-dicarboxylates from products of vicarious nucleophilic substitution of hydrogen in 3-fluoronitroarenes [Electronic resource] / S. K. Kotovskaya, G. A. Zhumabaeva, V. N. Charushin, O. N. Chupakhin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2009. - Vol. 58, № 1. - P170-175
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The reactions of 3-fluoro-4-R-6-phenylsulfonylmethylnitrobenzenes with dimethyl fumarate or diethyl maleate in acetonitrile in the presence of an excess of K2CO3 and a catalytic amount of 18-crown-6 afforded mixtures of dialkyl 6-R-7-fluoro- and dialkyl 6-R-7-phenylsulfonylquinoline-2,3-carboxylate N-oxides, as well as dialkyl 6-R-7-fiuoro- quinoline-2,3-carboxylates (alkyl is methyl or ethyl), which were resolved by column chromatography and identified by 1H NMR spectroscopy and X-ray diffraction

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2009, 58 (1), 170-175.pdf
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5.
Инвентарный номер: нет.
   
   S 98


   
    Synthesis of fluorine-containing alkyl 2-cyano-3-oxocarboxylates. Reactions with nucleophiles [Electronic resource] / O. G. Kuzueva, Ya. V. Burgart, V. I. Saloutin, O. N. Chupakhin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 1999. - Vol. 48, № 10. - P1937-1941
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Fluorine-containing alkyl 2-cyano-3-oxocarboxylates were synthesized for the first time by the reaction of ethyl cyanoacetate with fluorine-substituted carboxylic acid halides or alkyl carboxylates. The reactions with hydrazine hydrate, phenylhydrazine, ando-phenylenediamine give hydrazinium (ammonium) enolates or products of acid decomposition

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\1999, 48 (10), 1937.pdf
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6.
Инвентарный номер: нет.
   
   S 98


   
    Synthesis of derivatives of pyrazolo[1,5- a ]pyrimidines and imidazo[1,5- a ]pyrimidines proceeding from alkyl 2-benzylidene-3-oxo-3-fluoroalkylpropionates [Electronic resource] / M. V. Pryadeina, Ya. V. Burgart, V. I. Saloutin, P. A. Slepukhin, E. V. Sadchikova, E. N. Ulomskii // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2009. - Vol. 45, № 2. - P242-247
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Methods were developed of the synthesis of alkyl 2-hydroxy-2-fluoroalkyl-4-phenyl-1,2,3,4—tetrahydroimidazo-[1,5-a]pyrimidine-3-carboxylates and alkyl-5-hydroxy-2,7-diphenyl-5-fluoroalkyl-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-6-carboxylates by regioselective [3+3]-cycloaddition of 5-aminoimidazole or 5-aminopyrazole to alkyl 2-benzylidene-3-oxo-3-fluoroalkylpropionates at the fluoroacylvinyl fragment

\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2009, 45 (2), 242.pdf
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7.
Инвентарный номер: нет.
   
   S 98


   
    Synthesis of alkyl 4-aryl-2-methyl-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3- carboxylates [Electronic resource] / V. L. Gein, M. I. Kazantseva, L. F. Gein, P. A. Slepukhin // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2014. - Vol.50, №2. - С. 240-243. - Bibliogr. : p. 214 (4 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ALKYL ACETOACETATES -- AROMATIC ALDEHYDES -- AMMONIUM ACETATE
Аннотация: Reactions of alkyl acetoacetates, aromatic aldehydes, ammonium acetate, and 1,3-cyclohexanedione afford alkyl 4-aryl-2-methyl-5-oxo-1,4,5,6,7,8- hexahydroquinoline-3-carboxylates. The structure of compounds obtained was established with the help of IR, 1H NMR, and mass spectra and by X-ray diffraction analysis

\\\\expert2\\nbo\\Russian Journal of Organic Chemistry\\2014, 50, (2), 240-243.pdf
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8.
Инвентарный номер: нет.
   
   S 98


   
    Synthesis and the molecular and crystal structures of methyl 2-substituted 7,7-dimethyl-5-oxo-5,6,7,8-tetrahydroquinoline-4-carboxylates [Electronic resource] / D. A. Rudenko, M. V. Artemova, P. A. Slepukhin, V. I. Karmanov, S. N. Shurov // Chemistry of Heterocyclic Compounds. - 2013. - Vol.48, №9. - P1321-1324
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
SYNTHESIS -- MOLECULAR STRUCTURE -- CRYSTAL STRUCTURE
Аннотация: Methyl 7,7-dimethyl-5-oxo-5,6,7,8-tetrahydroquinoline-4-carboxylates were obtained as a result of 3-amino-5,5-dimethylcyclohex-2-enone reaction with the methyl esters of acyl(aroyl)pyruvic acids. The structure of methyl 7,7-dimethyl-5-oxo-2-phenyl-5,6,7,8-tetrahydroquinoline-4-carboxylate was established by X-ray structural analysis

\\\\Expert2\\NBO\\Chemistry of Heterocyclic Compounds\\2013, v.48, N 9, p. 1321-1324.pdf
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9.
Инвентарный номер: нет.
   
   S 98


   
    Synthesis and Structure of Isopropyl 5-Methyl-7-aryl-4,7-dihydrotetrazolo[1,5-a]pyrymidine-6-carboxylates [Text] / I. N. Vladimirov, A. A. Zorina, E. V. Nosova, V. L. Gein, O. V. Fedorova, M. I. Vakhrin // IV International Conference "Multi-Component Reactions and Related Chemistry", Ekaterinburg, 24-28 May 2009. - Екатеринбург, 2009. - PS 49
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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10.
Инвентарный номер: нет.
   
   S 98


   
    Synthesis and anticorrosive properties of alkylammonium polyfluoro-3-(ethoxycarbonyl)-2-oxo-2h-chromen-4-olates [Electronic resource] / K. V. Shcherbakov, T. I. Gorbunova, Ya. V. Burgart, V. I. Saloutin // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2014. - Vol.50, №1. - С. 66-71. - Bibliogr. : p. 71 (14 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
AMINES -- ALKYLAMMONIUM
Аннотация: Reactions of ethyl polyfluoro-4-hydroxy-2-oxo-2H-chromene-3-carboxylates with amines under mild conditions afforded alkylammonium polyfluoro-3- (ethoxycarbonyl)-2-oxo-2H-chromen-4-olates which efficiently inhibited hydrochloric acid corrosion of mild steel at low concentrations (10 -4-10-5 M).

\\\\expert2\\nbo\\Russian Journal of Organic Chemistry\\2014, 50, (1), 66-71.pdf
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