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Общее количество найденных документов : 21
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 1-10    11-21   21-21 
1.
Инвентарный номер: нет.
   
   A 10


   
    A route to fluorocontaining 1,3-thiazolines via internal polyfluorooxiranes [Electronic resource] / L. V. Saloutina, A. Ya. Zapevalov, M. I. Kodess, V. I. Saloutin, O. N. Chupakhin // Mendeleev Communications. - 1999. - N 6. - P231-232 . - ISSN 0959-9436
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The reaction of internal fluoroolefin oxides with thiourea results in 2-amino-5-fluoro-4-hydroxy-4,5-di(polyfluoroalkyl)-1,3-thiazolines, providing a route to an unknown type of fluorine-containing thiazolines with two fluoroalkyl substituents

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2.
Инвентарный номер: нет.
   
   S 98


   
    Synthesis of Heterocycles Via Internal Polyfluorooxiranes [Text] : доклад, тезисы доклада / L. V. Saloutina, A. Ya. Zapevalov, M. I. Kodess, V. I. Saloutin, O. N. Chupakhin // International Memorial I.Postovsky Conference on Organic Chemisty, Ekaterinburg, March 17-20, 1998 : program and abstracts. - Ekaterinburg, 1998. - P117
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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3.
Инвентарный номер: нет.
   
   P 90


   
    Preparation and reactions of 1,2- and 2,3-epoxy-2-chloro(bromo)6-hydrodecafluorohexanes [Text] / L. V. Saloutina, T. I. Filyakova, M. I. Kodess, A. Ya. Zapevalov // Journal of Fluorine Chemistry. - 1991. - Vol. 54, N 1-3. - P254
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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4.
Инвентарный номер: нет.
   
   S 98


   
    Synthesis of 2,3-bis(perfluoroalkyl)quinoxalines and 2,3-bis(perfluoroalkyl)-1,4-benzoxazines from oxides of internal perfluoroolefins [Electronic resource] / L. V. Saloutina, A. Ya. Zapevalov, V. I. Saloutin, M. I. Kodess, V. E. Kirichenko, M. G. Pervova, O. N. Chupakhin // Journal of Fluorine Chemistry. - 2005. - Vol. 126, № 6. - P976-983
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The reactions of oxides of internal trans-, cis-perfluoroolefins with o-phenylenediamine and 2-aminophenol in dioxane gave 2,3-bis(perfluoroalkyl)quinoxalines and 2,3-bis(perfluoroalkyl)-2H-1,4-benzoxazin-2-ols respectively in yields of 23–67%. When N,N-dimethylacetamide was used as a solvent an anionic isomerization of the oxides into ketones, which further yielded 2-(perfluoroalkyl)benzimidazoles in the case of o-phenylenediamine and 2-hydroxy-N-perfluoroalkanoylanilines in the case of 2-aminophenol, became the main path of these reactions. Unusual cyclization resulting in 2-pentafluoroethyl-2-pentafluoropropanoylbenzoxazolidine occurs on interaction between dodecafluoro-3,4-epoxyhexane and 2-aminophenol in N,N-dimethylacetamide.

\\\\Expert2\\nbo\\Journal of Fluorine Chemistry\\2005, v.126, p.976.pdf
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5.
Инвентарный номер: нет.
   
   A 10


   
    A route to fluorocontaining N,S-heterocycles via octafluoro-2,3-epoxybutane [Text] / L. V. Saloutina, A. Ya. Zapevalov, V. I. Saloutin, P. A. Slepukhin, M. I. Kodess, V. E. Kirichenko, M. G. Pervova, O. N. Chupakhin // Journal of Fluorine Chemistry. - 2007. - Vol. 128, № 7. - P769-778
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The reaction of octafluoro-2,3-epoxybutane 1 with 2-aminothiophenol gave three kinds of novel fluorocontaining N,S-heterocyclic compounds depending on the solvent nature: 2,3-bis(trifluoromethyl)-3,4-dihydro-2H-1,4-benzothiazin-2-ol 2, 2-trifluoromethyl-2-[1-(2-aminophenylthio)-2,2,2-trifluoroethyl]-1,3-benzothiazolidine 6 and 5a,11a-bis(trifluoromethyl)-5a,6,11a,12-tetrahydro-5,11-dithia-6,12-diazanaphthacene 5. Use of the toluene, dioxane, tetrahydrofuran, acetonitrile and dimethoxyethane gave the unexpected dihydrobenzothiazine 2 (RS,SR RR,SS) in good to moderate yields. In dimethylsulfoxide and N,N-dimethylacetamide, unusual cyclization occurred resulting in benzothiazolidine 6 (RS,SR/RR,SS 1:1) in moderate yields. Formation of minor 1,1,1,3,4,4,4-heptafluoro-3-(2-aminophenylthio)-2,2-dihydroxybutane 4 which was converted into bis(benzothiazine) 5 was observed in all solvents tested with the exception of toluene and dioxane. The molecular structure of the RS,SR-diastereomer of dihydrobenzothiazine 2, bis(benzothiazine) 5 and the RS,SR-diastereomer of benzothiazolidine 6 has been established by X-ray crystallography.

\\\\Expert2\\nbo\\Journal of Fluorine Chemistry\\2007, v.128. p.769.pdf
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6.
Инвентарный номер: нет.
   
   P 80


   
    Polyfluoroalkylated 1,3-thiazolines: synthesis from polyfluoro-2,3-epoxyalkanes [Text] / L. V. Saloutina, A. Ya. Zapevalov, M. I. Kodess, V. I. Saloutin, G. G. Aleksandrov, O. N. Chupakhin // Journal of Fluorine Chemistry. - 2000. - Vol. 104, № 2. - P155-165
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The interaction of polyfluoro-2,3-epoxyalkanes with thiourea and thiosemicarbazide results in 2-amino-5-fluoro-4-hydroxy-4,5-di(polyfluoroalkyl)-1,3-thiazolines and 5-fluoro-2-hydrazino-4-hydroxy-4,5-di(polyfluoroalkyl)-1,3-thiazolines, respectively. Asymmetric oxiranes yield mixtures of regioisomers, and the ring opening has been found to occur mainly near the bulkier fluoroalkyl group. The reaction with thiourea proceeds stereospecifically in dimethyl sulfoxide. The molecular structure of E-isomers of 2-amino-5-fluoro-4-hydroxy-4,5-bis(trifluoromethyl)-1,3-thiazoline and 2-amino-5-fluoro-5-heptafluoropropyl-4-hydroxy-4-trifluoromethyl-1,3-thiazoline has been established by X-ray crystallography.????

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7.
Инвентарный номер: нет.
   
   F 94


   
    From oxides of internal perfluoroolefins to fluorocontaining camphor thiazolinylhydrazones [Text] / L. V. Saloutina, A. Ya. Zapevalov, M. I. Kodess, K. A. Lyssenko, M. Yu. Antipin, V. I. Saloutin, O. N. Chupakhin // Journal of Fluorine Chemistry. - 2003. - Vol. 120, № 1. - P41-47
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The reaction of oxides of internal trans- and cis-perfluoroolefins with (1S, 4S)- or racemic camphor thiosemicarbazone leads to the formation of trans- and cis-isomers of (1S, 4S)- or racemic camphor 5?-fluoro-4?-hydroxy-4?,5?-di(perfluoroalkyl)-1?,3?-thiazolinyl-2?-hydrazones, respectively. Unsymmetrical dodecafluoro-2,3-epoxyhexane yields a mixture of regioisomeric hydrazones. The molecular structure of the trans-isomer of (1S, 4S)-camphor 5?-fluoro-4?-hydroxy-4?,5?-bis(trifluoromethyl)-1?,3?-thiazolinyl-2?-hydrazone has been established by X-ray crystallography. The quite rare example of cocrystallization of two diastereomers of the latter in homochiral crystal (sp. group P21) has been revealed????

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8.
Инвентарный номер: нет.
   
   S 98


   
    Synthesis of fluorine containing glycolurils and oxazolines from oxides of internal perfluoroolefins [Text] / L. V. Saloutina, A. Ya. Zapevalov, V. I. Saloutin, P. A. Slepukhin, M. I. Kodess, O. N. Chupakhin // Journal of Fluorine Chemistry. - 2009. - Vol. 130, № 10. - P853-860
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
OXIDES OF INTERNAL PERFLUOROOLEFINS -- 1,5-bIS(PERFLUOROALKYL)TETRAAZABICYCLO[3.3.0]OCTANE-3,7-D
Аннотация: The reaction of oxides of internal perfluoroolefins 1–3 with urea gave two kinds of novel fluorine containing N-heterocyclic compounds depending on the solvent nature: 1,5-bis(perfluoroalkyl)tetraazabicyclo[3.3.0]octane-3,7-diones 4a–c and 2-amino-5-fluoro-4,5-bis(perfluoroalkyl)-4,5-dihydrooxazol-4-ols 7a–d. Use of polar dimethylsulfoxide, N,N-dimethylacetamide and acetonitrile afforded glycolurils 4a–c in moderate yields. In dioxane, unexpected cyclization occurred resulting in oxazolines 7a–d in high yields. A similar reaction of oxiranes 2, 3 with urea in aqueous dioxane gave mixtures of 4,5-dihydroxy-4,5-bis(perfluoroalkyl)imidazolidine-2-ones 9b, c, glycolurils 4b, c and oxazolines 7b–d. The molecular structure of trans-isomers of oxazoline 7b and imidazolidine 9b has been established by X-ray crystallography??

\\\\Expert2\\nbo\\Journal of Fluorine Chemistry\\2009, V. 130, P. 853.pdf
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9.
Инвентарный номер: нет.
   
   S 98


   
    Synthesis of polyfluoroalkylated 1,4-diazinols and 1,4-oxazinols using polyfluoro-2,3-epoxyalkanes 32 + 13 [Text] / L. V. Saloutina, A. Ya. Zapevalov, M. I. Kodess, V. I. Saloutin // Journal of Fluorine Chemistry. - 1998. - Vol. 87, № 1. - P49-55. - Bibliogr. : p. 55 (13 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
2-AMINOETHANOL -- ETHYLENEDIAMINE -- POLYFLUORO-2,3-EPOXYALKANES -- POLYFLUOROALKYLATED 1,4-DIAZINOLS -- POLYFLUOROALKYLATED 1,4-OXAZINOLS
Аннотация: It has been found that the reactions of polyfluoro-2,3-epoxyalkanes with ethylenediamine and 2-aminoethanol yield 2,3-di(polyfluoroalkyl)-1,5,6-trihydro-1,4-diazin-2-ols and 2,3-di(polyfluoroalkyl)-5,6-dihydro-1,4-oxazin-2-ols, respectively. In the case of unsymmetrical oxiranes mixtures of regioisomeric heterocyclic compounds have been obtained. These reactions were found to give some byproducts - N,N?-bis(polyfluoroacyl)ethylenediamines and N-polyfluoroacyl-2-aminoethanols.

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10.
Инвентарный номер: нет.
   
   P 80


   
    Polyfluoro-2,3-epoxyalkanes in reactions with thiourea and thiosemicarbazide [Text] / L. V. Saloutina, A. Ya. Zapevalov, M. I. Kodess, V. I. Saloutin, G. G. Aleksandrov, O. N. Chupakhin // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2000. - Vol. 36, № 6. - P887-899. - Bibliogr. : p. 899 (17 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
POLYFLUORO-2,3-EPOXYALKANES -- THIOUREA -- THIOSEMICARBAZIDE
Аннотация: Reactions of polyfluoro-2,3-epoxyalkanes with thiourea and thiosemicarbazide afforded 2-amino-4-hydroxy-4,5-di(polyfluoroalkyl)-5-fluoro-1,3-thiazolines and 2-hydrazino-4-hydroxy-4,5-di(polyfluoroalkyl)-5-fluoro-1,3-thiazolines respectively. Unsymmetrical oxiranes furnish mixtures of regioisomeric heterocyclic compounds, and the epoxy cycle is predominantly cleaved from the side of bulkier fluoroalkyl group. The reactions of E-oxiranes are stereospecific and provide 1,3-thiazolines in the E-form. The structure of compounds obtained was confirmed by IR, 19F, 1H, and 13C NMR spectroscopy, by mass spectra and chemical transformations. E-isomers of 2-amino-4-hydroxy-4,5-bis(trifluoromethyl)-5-fluoro-1,3-thiazoline and 2-amino-5-heptafluoropropyl-4-hydroxy-4-trifluoromethyl-5-fluoro-1,3-thiazoline were subjected to X-ray diffraction analysis.

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