A Novel Synthesis of 5-Perfluoroalkyl-2,3-dihydro-1,4-diazepines from 1-Perfluoroalkyl-2-iodoethylenes
作者:Jin-Tao Liu、Fu-Lu Zhao
DOI:10.1055/s-2003-41062
日期:——
A novel method for the synthesis of 5-perfluoroalkyl-2,3-dihydro-1,4-diazepines using easily available starting materials is described. 1-Perfluoroalkyl-2-iodoethylenes, obtained from the reaction of perfluoroalkyl iodides and alkynes, reacted with ethylenediamine under mild conditions to give the title compounds in good yields. A possible mechanism is proposed.
Synthesis of 2,3-bis(perfluoroalkyl)quinoxalines and 2,3-bis(perfluoroalkyl)-1,4-benzoxazines from oxides of internal perfluoroolefins
作者:Lyudmila V. Saloutina、Aleksandr Ya. Zapevalov、Victor I. Saloutin、Mikhail I. Kodess、Valentina E. Kirichenko、Marina G. Pervova、Oleg N. Chupakhin
DOI:10.1016/j.jfluchem.2005.05.001
日期:2005.6
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
2-Acetyl-substituted polyfluorinated ?-keto esters in reaction with amines
作者:K. I. Pashkevich、V. M. Krokhalev、V. I. Saloutin
DOI:10.1007/bf00961931
日期:1988.6
Reaktionen terminaler Perfluoralkene mit Diaminen und Diphenolen
作者:Wolfgang Bürger、Klaus Lunkwitz
DOI:10.1016/s0022-1139(00)80026-3
日期:1993.2
Model compounds related to the reaction products of perfluoroalkenes produced by the electron-beam irradiation of poly(tetrafluoroethylene) with dinucleophilic reactants have been synthesized. Such model compounds, in reaction with diphenols or diamines, give information relating to the mechanism of crosslinking reactions. Results obtained with perfluorohept-1-ene show that terminal perfluoroalkenes react preferentially with dinucleophilic reactants to give unsaturated ether and amide structures.
Synthesis and structure of reaction products obtained from 1,2-epoxyperfluorobutane and bifunctional nucleophilic reagents
作者:T. I. Filyakova、M. I. Kodess、P. A. Slepukhin、A. Ya. Zapevalov
DOI:10.1134/s1070428009110219
日期:2009.11
1,2-Epoxyperfluorobutane readily reacts with bifunctional nucleophilic reagents to provide heterocyclic compounds with a pentafluoroethyl substituent. The reaction of this epoxide with thiourea and acetone thiosemicarbazone gave rise to 2-amino-5-pentafluoroethyl-5-fluoro-4(5H)-thiazolinone and 2-iso-propylidenehydrazono-5-pentafluoroethyl-5-fluoro-4-thiazolidinone respectively. The reaction of 1,2-epoxyperfluorobutane with o-phenylenediamine and 2,3-diaminonaphthalene afforded in high yields 3-pentafluoroethyl-2(1H)-quinoxalinone and 3-(pentafluoroethyl)benzo[g]-2(1H)-quinoxalinone. The molecular and crystal structure of the obtained fluorine-containing heterocycles was established by XRD analysis.