41004-33-5Relevant academic research and scientific papers
Reactions of novel unsaturated fluorocarbons
Chambers, Richard D.,Salisbury, Martin
, p. 239 - 246 (2007/10/03)
Novel fluorinated mono-enes and di-enes have been synthesised via telomerisation reactions using (CF3)2CFI with CF2=CH2 and also with CF2=CFH. Cyclo-additions with diazomethane occur readily to give Δ1 or Δ2 pyrazolines, depending on the system, and nucleophilic attack occurs with methanol and with fluoride ion. In the latter case, stable carbanions have been observed. A novel free-radical route to seven-membered rings, arising from cyclo-addition of dimethyl- and diethyl-ethers to the diene [(CF3)2C=CHCF2-]2 (3), has been developed.
Thermal decomposition of branched-chain perfluoroalkanes
Tortelli, V.,Tonelli, C.,Corvaja, C.
, p. 165 - 174 (2007/10/02)
The pyrolysis of some branched perfluoroalkanes has been studied.Homolytic cleavage of the most hindered carbon-carbon bond occurs, followed by coupling and rearrangement of the radicals so formed.This mechanism accounts for all the reaction products.Some kinetic and thermodynamic data are presented.
Fluoro-olefin Chemistry. Part 13. A Further Route to Perfluoro-2,3-dimethylbut-2-ene and the Photochemical Rearrangement of Some Perfluoro-alkyl Olefins
Bell, A. Nicholas,Fields, Roy,Haszeldine, Robert N.,Moran, Daniel
, p. 487 - 489 (2007/10/02)
Perfluoro-2,3-dimethylbut-2-ene is conveniently prepared from perfluoro-(2,2,4,4-tetramethyldithietan) at 325 deg C.Under u.v. irradiation it is efficiently isomerised to perfluoro-2,3-dimethylbut-1-ene.Perfluoro-2-methylbut-2-ene and perfluoro-3-methylpent-2-ene are also isomerised photochemically, but more slowly, migration of fluorine being exclusively to the RFCF: group.In the presence of fluoride ion the internal olefins are reformed quantitatively.
