作者:Richard D. Chambers、Mohammed A. Hassan、Philip R. Hoskin、Alan Kenwright、Paul Richmond、Graham Sandford
DOI:10.1016/s0022-1139(01)00445-6
日期:2001.10
Reactions between perfluoro-(4-isopropylpyridine) (1) and a variety of oxygen-, nitrogen- and carbon-centred nucleophiles are reported. A range of mono-, di- and tri-substituted perfluoro-(4-isopropylpyridine) derivatives were synthesised for which yields and regiochemistry depended on reaction conditions. The barriers to rotation for the perfluoro-isopropyl group in several pyridine systems were measured
据报道全氟-(4-异丙基吡啶)(1)与各种以氧,氮和碳为中心的亲核试剂之间的反应。合成了一系列单,二和三取代的全氟-(4-异丙基吡啶)衍生物,其产率和区域化学取决于反应条件。通过19 F NMR自旋饱和转移实验测量了几种吡啶体系中全氟异丙基的旋转势垒。
Reactions involving fluoride ion. Part I. The polyfluoroalkylation of fluorinated aromatic systems
作者:R. D. Chambers、J. A. Jackson、W. K. R. Musgrave、R. A. Storey
DOI:10.1039/j39680002221
日期:——
Highly fluorinated aromatic compounds and their derivatives will react with carbanions produced from fluorinated olefins and fluoride ion, with the formation of polyfluoroalkyl derivatives, in a process which is the nucleophilic equivalent of the Friedel-Crafts reaction in hydrocarbon chemistry. Reaction occurs between hexafluoropropene and pentafluoropyridine, pentafluoronitrobenzene, and other activated
Reactions involving fluoride ion. Part IV. Synthesis and rearrangement of perfluoroisopropylpyridines
作者:R. D. Chambers、R. P. Corbally、W. K. R. Musgrave
DOI:10.1039/p19720001281
日期:——
Synthesis of perfluoropolyisopropylpyridines by fluoride-ion-initiated reactions of hexafluoropropene with pentafluoropyridine at atmospheric pressure is described. Trisubstitution gives a mixture of perfluoro-2,4,5- and 2,4,6-tri-isopropylpyridines; the ratio of these varies with reaction temperature but the 2,4,5-isomer can be obtained as the principal product. The 2,4,5-isomer is rearranged to the
Reactions involving fluoride ion. Part 401. Amines as initiators of fluoride ion catalysed reactions
作者:Richard D. Chambers、William K. Gray、Stewart R. Korn
DOI:10.1016/0040-4020(95)00787-9
日期:1995.11
o)ethene (TDAE) and trimethylamine react with anhydrous unsaturated fluorocarbons to produce, ‘in situ’, powerful fluoride- ion sources. These are used to initiate carbon- carbon bond forming reactions eg. oligomerisation and polyfluoroalkylation, and many of these reactions occur efficiently in the absence of a solvent.