Bis(perfluoroorganyl)bromonium salts [(RF)2Br]Y (RF=aryl, alkenyl, and alkynyl)
作者:Hermann-Josef Frohn、Matthias Giesen、Dirk Welting、Vadim V. Bardin
DOI:10.1016/j.jfluchem.2010.06.006
日期:2010.9
Bromoniumsalts [(RF)2Br]Y with perfluorinated groups RFC6F5, CF3CFCF, C2F5CFCF, 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][BF4]. 1:2 reactions of BrF3 and silanes C6F5SiY3 (Y = F, Me) ended with different products – C6F5BrF2
溴鎓盐[(R ˚F)2溴- ] Y与全氟化基团- [R ˚F Ç 6 ˚F 5,CF 3 CF CF,C 2 ˚F 5 CF CF,和CF 3 C≡C,从BRF的反应分离出3,其中R ˚F BF 2在弱配位溶剂(wcs)中,例如CF 3 CH 2 CHF 2(PFP)或CF 3 CH 2 CF 2 CH 3(PFB),收率30-90%。C 6 F 5高炉2仅仅与化学计量无关地形成[[C 6 F 5)2 Br] [BF 4 ]。BrF 3与硅烷C 6 F 5 SiY 3(Y = F,Me)的1:2反应以不同的产物– C 6 F 5 BrF 2或[(C 6 F 5)2 Br] [SiF 5 ] –终止纯的个体,取决于Y和反应温度(Y = F)。在≥−30°C时使用C 6 F 5 SiF 3 [[C 6 F 5)2 Br] [SiF5 ]导致产率为92%,而具有较少路易斯酸性C 6 F 5 SiMe
The Preparation and Some Properties of the C<sub>4</sub>F<sub>8</sub> Olefins<sup>1</sup>
作者:T. J. Brice、J. D. LaZerte、L. J. Hals、W. H. Pearlson