Reactions of aromatic compounds with xenon difluoride

Resumo

Reactions of substituted benzenes C₆H₅R (R = Me, F, Cl, Br, CF₃, NO₂) with xenon difluoride in the presence of boron trifluoride–diethyl ether complex in weakly acidic (1,1,1,3,3-pentafluorobutane) and weakly basic media (acetonitrile) have been studied. These reactions lead to the formation of fluorobenzene derivatives FC₆H₄R (isomer mixture) together with isomeric difluorobenzenes and fluorinated and non-fluorinated biphenyls. The results have been compared with previously reported data obtained in other solvents using other catalysts.