- FLUORINATION OF POLYHALOGENATED UNSATURATED COMPOUNDS WITH VANADIUM PENTAFLUORIDE
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Vanadium pentafluoride reacts with polyfluorinated and polychlorinated olefins, alkadienes, cycloalkenes and cyclodienes in CFCl3 or without a solvent at -25 deg C to 100 deg C, forming products of addition of two fluorine atoms across the C=C bond.
- Bardin, V. V.,Avramenko, A. A.,Furin, G. G.,Krasilnikov, V. A.,Karelin, A. I.,et al.
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p. 385 - 400
(2007/10/02)
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- ACTION OF VANADIUM AND ANTIMONY PENTAFLUORIDES ON POLYFLUORINATED DERIVATIVES OF CYCLOHEXADIENE
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Polyfluorinated 1,3- and 1,4-cyclohexadienes are fluorinated by vanadium fluoride at -25 to 25 deg C.The olefinic fragments of perfluoro-1,3- and perfluoro-1,4-cyclohexadienes are close to each other in reactivity.Under the influence of vanadium pentafluoride the fluorine atoms add to 1-R-heptafluoro-1,4-cyclohexadienes preferentially at the multiple bond containing the less electron-withdrawing substituent.At -80 to 20 deg C antimony pentafluoride leads to isomerization of the polyfluorinated derivatives of cyclohexadiene.
- Avramenko, A. A.,Bardin, V. V.,Furin, G. G.,Karelin, A. I.,Krasil'nikov, V. A.,Tushin, P. P.
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p. 1298 - 1303
(2007/10/02)
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