4933-59-9Relevant academic research and scientific papers
Bis(perfluoroorganyl)bromonium salts [(RF)2Br]Y (RF = aryl, alkenyl, and alkynyl)
Frohn, Hermann-Josef,Giesen, Matthias,Welting, Dirk,Bardin, Vadim V.
experimental part, p. 922 - 932 (2010/10/03)
Bromonium salts [(RF)2Br]Y with perfluorinated groups RFC6F5, CF3CFCF, C 2F5CFCF, and CF3C≡C were isolated from reactions of BrF3 with RFBF2 in weakly coordinating solvents (wcs) like CF3CH2CHF2 (PFP) or CF3CH2CF2CH3 (PFB) in 30-90% yields. C6F5BF2 formed independent of the stoichiometry only [(C6F5)2Br][BF 4]. 1:2 reactions of BrF3 and silanes C6F 5SiY3 (Y = F, Me) ended with different products - C 6F5BrF2 or [(C6F5) 2Br][SiF5] - as pure individuals, depending on Y and on the reaction temperature (Y = F). With C6F5SiF3 at ≥-30 °C [(C6F5)2Br][SiF5] resulted in 92% yield whereas the reaction with less Lewis acidic C 6F5SiMe3 only led to C6F 5BrF2 (58%). The interaction of K[C6F 5BF3] with BrF3 or [BrF2][SbF 6] in anhydrous HF gave [(C6F5) 2Br][SbF6]. Attempts to obtain a bis(perfluoroalkyl) bromonium salt by reactions of C6F13BF2 with BrF3 or of K[C6F13BF3] with [BrF2][SbF6] failed. The 3:2 reactions of BrF3 with (C6F5)3B in CH2Cl2 gave [(C6F5)2Br][(C6F 5)nBF4-n] salts (n = 0-3). The mixture of anions could be converted to pure [BF4]- salts by treatment with BF3·base.
A widely varying range of products in reactions of C6F5BrF2, C6F5IF2, and C6F5IF4 with Lewis acids of different strength
Frohn, Hermann-Josef,Bailly, Frank,Welting, Dirk,Bardin, Vadim V.
experimental part, p. 301 - 307 (2009/12/04)
The relative fluoride donor ability: C6F5BrF2 > C6F5IF2 > C6F5IF4 was outlined from reactions with Lewis acids of graduated strength in different solvents.
The first hydrogen containing (polyfluorocycloalken-1-yl)xenon(II) salts
Frohr,Bardin
, p. 562 - 564 (2007/10/03)
(2-H-Hexafluoro-1,4-cyclohexadien-1-yl)xenon(II) and (2-H-octafluorocyclohexen-1-yl)xenon(II) hexafluoroarsenates and tetrafluoroborates were obtained together with their perfluorinated analogues on reacting the corresponding (2,3,4,5-tetrarluorophenyl)xenon(II) salts with XeF2 in anhydrous HF (aHF). The fluorinated (cyclohexen-1-yl)xenon(II) cations react with bromide and iodide anions in MeCN and aHF under alkenylation of the halide anions.
(Heptafluoro-1,4-cyclohexadien-1-yl)xenon(II) and (Nonafluorocyclohexen-1-yl)xenon(II) Hexafluoroarsenates: Synthesis, Spectroscopic Characterization and Reactivity of the First Alkenylxenon(II) Compounds
Frohn, Hermann,Bardin, Vadim V.
, p. 1072 - 1074 (2007/10/02)
The first alkenylxenon(II) compounds: (heptafluoro-1,4-cyclohexadien-1-yl)xenon(II) hexafluoroarsenate +-1,4-C6F7>- and (nonafluorocyclohexen-1-yl)xenon(II) hexafluoroarsenate +-C6F9>- were
