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.
Reactions involving fluoride ion. Part 37. ‘Proton Sponge’ hydrofluoride as a fluoride ion donor
作者:Richard D. Chambers、Stewart R. Korn、Graham Sandford
DOI:10.1016/0022-1139(93)03052-n
日期:1994.10
‘Proton Sponge’ hydrofluoride has been prepared and is totally soluble in acetonitrile; this system has been used to generate carbanions from hexafluoropropene and to form carbon-fluorine bonds by reaction with both 2,4,6-trichloropyrimidine and benzoyl chloride.
Polyhalogenoheterocyclic compounds. Part 33. Mechanism of thermal rearrangements of perfluoropyridazine and perfluoroalkylpyridazines
作者:Richard D. Chambers、W. Kenneth R. Musgrave、Colin R. Sargent
DOI:10.1039/p19810001071
日期:——
Rearrangement of perfluoro-4,5-di-s-butylpyridazine (4) to a mixture of perfluoro-4,5-di-s-butylpyrimidine (13) and -2,5-di-s-butylpyrazine (20), occurs at 300 °C, in a sealed tube. Cross-over experiments between various fluorinatedpyridazine derivatives and, also, doubly 15N-labelled derivatives, rule out any rearrangementmechanism involving a cycloaddition process. Compound (4) and other fluorinated