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.
作者:Richard D. Chambers、Masayuki Tamura、Thomas Shepherd、Clifford J. Ludman
DOI:10.1039/c39870001699
日期:——
Strong evidence is presented for generation of azetes by photolysis of fluorinated 1,2,3-triazine derivatives; a monocyclic azete has been trapped chemically and another has been observed at low temperature by i.r. and mass spectroscopy.