- Spectroscopic observation of charge transfer complex formation of persistent perfluoroalkyl radical with aromatics, olefin, and ether
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Charge transfer interaction of a persistent perfluoroalkyl radical, perfluoro-3-ethyl-2,4-dimethyl-3-pentyl (PFR-1), with benzene and methyl substituted benzenes (toluene, m-xylene, mesitylene), 1-decene, and diethyl ether was investigated by UV-vis spect
- Ono, Taizo,Ohta, Kazutoku
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- Synthesis of a persistent perfluoroalkyl radical by electrochemical fluorination
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A persistent perfluoroalkyl radical, perfluoro-3-ethyl-2,4-dimethyl-3-pentyl, was synthesized by the electrochemical fluorination of a mixture of hexafluoropropene trimers in the presence of a large amount of sodium fluoride.
- Ono, Taizo,Fukaya, Haruhiko,Nishida, Masakazu,Terasawa, Naohiro,Abe, Takashi
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p. 1579 - 1580
(2007/10/03)
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- DIRECT GAS-PHASE CATALYTIC FLUORINATION OF PARTIALLY FLUORINATED ORGANIC COMPOUNDS
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The fluorination of a wide range of polyfluorinated organic compounds with molecular fluorine in the gas phase in a layer of NiF2/support as catalyst was investigated.It was shown that the selectivity of fluorination of the series of fluoroolefins, acid fluorides, polyfluoroalkanes, and hydrogen-containing ethers can be greatly increased.The developed method was used on an industrial scale in the production of perfluorinated liquids.
- Zakharov, V. Yu.,Denisov, A. K.,Novikova, M. D.
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p. 1942 - 1945
(2007/10/03)
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- Photoinduced Fluorination of Hexafluoropropene Trimers: Synthesis of Branched Perfluoroalkanes
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Hexafluoropropene trimers, perfluoro-3-ethyl-2,4-dimethylpent-2-ene (1) and perfluoro-3-isopropyl-4-methylpent-2-ene (2) reacted with fluorine under u.v. irradiation to give the new and highly branched perfluoroalkanes perfluoro-2,3,3,4-tetramethylpentane (7) and perfluoro-2,3,4-trimethylpentane (8) through a mechanism involving the elimination-readdition of CF3 groups.Compound (7), which is very bulky, can be easily cleaved at 200 deg C to give two perfluoro radicals capable of initiating the polymerization of vinylic monomers.
- Tonelli, Claudio,Tortelli, Vito
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