作者:Vasilios Padelidakis、Wieland Tyrra、Dieter Naumann
DOI:10.1016/s0022-1139(99)00118-9
日期:1999.10
2,6-F2C6H3IF2 was isolated in quantitative yield from the reactions of 2,6-F2C6H3I and XeF2 or F-2/N-2-mixtures. Ligand exchange using (CF3CO)(2)O gave the corresponding bis(trifluoroacetate) in 84% yield. The reaction of 2,6-F2C6H3I(OCOCF3)(2) and 1,3-F2C6H4 in the presence of CF3SO3H selectively gave [I(2,6-F2C6H3)(2)][OSO2CF3] in 80% yield.Ligand exchange reactions of 2,6-F2C6H3IF2 and triarylboranes in the presence of stoichiometric amounts of BF3. O(CH3)(2) gave the corresponding 2,6-difluorophenyl(aryl)iodine(III) tetrafluoroborates in 45-85% yield.Ligand exchange of the tetrafluoroborate was studied for some examples using (CH3)(3)SiOSO2CF3 or (CH3)(3)SiOCOCF3 giving the corresponding 2,6-difluorophenyl(aryl)iodine(III) trifluoromethanesulfonates or trifluoroacetates in nearly quantitative yields.All compounds were characterized by their NMR and mass spectra and melting and decomposition points. (C) 1999 Elsevier Science S.A. All rights reserved.