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полныйинформационныйкраткий
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Поисковый запрос: (<.>K=PERFLUOROOLEFINS<.>)
Общее количество найденных документов : 7
Показаны документы с 1 по 7
1.
Инвентарный номер: нет.
   
   H 99


   
    Influence of crown ethers on thermal decarboxylation of salts of perfluorocarboxylic acids [Electronic resource] / A. V. Podol'skii, T. G. Khonina, T. I. Filyakova, M. I. Kachalkova, M. I. Kodess // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 1991. - Vol. 40, N 10. - P1977-1979
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Thermal decarboxylation of potassium salts of perfluorocarboxylic acids in the presence of 20 mole % of crown ethers takes place in 1 h at 180-degrees-C and gives internal perfluoroolefins in yields of up to 95 %

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\1991, 40 (10), 1977-1979.pdf
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2.
Инвентарный номер: нет.
   
   P 80


   
    Polyfluorinated Compounds Based on Perfluoroolefins Ozonolisis Products [Text] : доклад, тезисы доклада / V. N. Odinokov, V. R. Akhmetova, R. G. Savchenko, M. V. Bazunova, A. Ya. Zapevalov // International Memorial I.Postovsky Conference on Organic Chemisty, Ekaterinburg, March 17-20, 1998 : program and abstracts. - Ekaterinburg, 1998. - P35
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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3.
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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4.
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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5.
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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6.
Инвентарный номер: нет.
   
   R 30


   
    Reactions of epoxides derived from internal perfluoroolefins with o-phenylenediamine and 2-aminophenol [Electronic resource] / L. V. Saloutina, A. Ya. Zapevalov, V. I. Saloutin, M. I. Kodess, V. E. Kirichenko, M. G. Pervova, O. N. Chupakhin // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2006. - Vol. 42, № 4. - P558-566
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The reactions of epoxy derivatives of internal perfluoroolefins with o-phenylenediamine and 2-aminophenol in dioxane gave 23–67% of the corresponding 2,3-bis(perfluoroalkyl)quinoxalines and 2,3-bis(perfluoroalkyl)-2H-1,4-benzoxazin-2-ols, respectively. When N,N-dimethylacetamide was used as a solvent, the main reaction pathway was anionic isomerization of epoxides into ketones which were then converted into 2-perfluoroalkylbenzimidazoles (in the reactions with o-phenylenediamine) or 2-hydroxy-N-perfluoroalkanoylanilines (in the reactions with 2-aminophenol). The reaction of 3,4-epoxydodecafluorohexane with 2-aminophenol in N,N-dimethylacetamide was accompanied by unusual cyclization to afford 2-pentafluoropropanoyl-2-pentafluoroethyl-1,3-benzoxazolidine

\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2006, 42 (4), 558.pdf
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7.
Инвентарный номер: нет.
   
   S 98


   
    Synthesis of fluorine containing N-heterocycles using oxides of terminal perfluoroolefins and urea / L. V. Saloutina, A. Ya. Zapevalov, M. I. Kodess, P. A. Slepukhin, V. I. Saloutin, O. N. Chupakhin // Journal of Fluorine Chemistry. - 2012. - Vol.139. - С. 16-22
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
Me2SO -- PERFLUOROOLEFINS -- UREA
Аннотация: The reaction of octafluoro-1,2-epoxybutane (1) with urea in Me2SO, aqueous Me2SO, aqueous dioxane, aqueous acetonitrile and of hexadecafluoro-1,2-epoxyoctane (2) with urea in aqueous Me2SO gave perfluoroalkylhydantoins – 5-hydroxy-5-pentafluoroethylimidazolidine-2,4-dione (4a) (yield 40–42%) and 5-hydroxy-5-tridecafluorohexylimidazolidine-2,4-dione (4b) (yield 54%), respectively. Use of dioxane and acetonitrile in the reaction of oxiranes 1, 2 with urea led to unexpected heterocyclic products – perfluoroalkyloxazoles 7a, b (yield 11–82%). Perfluoroalkyl containing allantoin – 5-tridecafluorohexyl-5-ureidoimidazolidine-2,4-dione (3b) (yield 19%) and polyfluoroalkyl containing urea–(2,2,3,3,4,4,5,5,6,6,7,7,7-tridecafluoro-1-hydroxyheptyl)urea (6b) (yield 46%) have been first obtained by the reaction of oxirane 2 with urea in Me2SO and aqueous Me2SO, respectively

\\\\Expert2\\nbo\\Journal of Fluorine Chemistry\\2012, v. 139, p.16.pdf
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