79150-78-0Relevant academic research and scientific papers
Fluorination of tetrafluorobenzenes C6HF4R with XeF2
Bardin,Shchegoleva,Frohn
, p. 153 - 159 (2007/10/03)
Replacement of hydrogen by fluorine and addition of fluorine atoms to the aromatic ring were found in the reaction of XeF2 with 1-R-2,3,4,5-tetrafluorobenzene (R = H, F, Br, NO2) or 1-R-2,3,4,6-tetrafluorobenzene (R = H, CF3) in HF or CH2Cl2-BF3·OEt2. Only fluorine addition took place in the case of 1-R-2,3,5,6-tetrafluorobenzenes (R = H, Br, CF3) or 1-Br-2,3,4,6-tetrafluorobenzene. The role of cation radicals as reactive intermediates is discusseed.
AROMATIC FLUORINE DERIVATIVES. XCIII. REACTION OF POLYFLUORINATED AROMATIC COMPOUNDS WITH XENON DIFLUORIDE IN THE PRESENCE OF HYDROGEN FLUORIDE AND SALTS OF THE XeF+MFm- (MFm-1 = SbF5, WF6) TYPE
Bardin, V. V.,Furin, G. G.,Yakobson, G. G.
, p. 525 - 530 (2007/10/02)
Under the influence of xenon difluoride in the presence of hydrogen fluoride at 20 deg C hexafluorobenzene, nitropentafluorobenzene, 4-nitroheptafluorotoluene, and octafluoronaphthalene undergo regiospecific fluorination with the formation of polyfluorinated 1,4-cyclohexadienes containing substituents other than fluorine at the C=C bond.Salts of the XeF+MFm- (MFm-1 = Sb5, WF6) type are stronger fluorinating agents and react with polyfluorinated aromatic compounds at -50 to -80 deg C.A possible reaction mechanism, involving one-electron oxidation of the polyfluorinated aromatic compounds, is discussed.
