A first methodical approach to salts with unsymmetrical fluorophenyl(pentafluorophenyl)difluoroiodonium(V) cations [Rf(RF)IF2]+ (Rf=x-FC6H4, x=2, 3, 4; RF=C6F5)
                                
                                    
                                        作者:Hermann-Josef Frohn、André Wenda、Ulrich Flörke                                    
                                    
                                        DOI:10.1016/j.tet.2010.04.047
                                    
                                    
                                        日期:2010.7
                                    
                                    A promising approach to the unknown type of [Ar'(Ar)IF2]X salts is offered. x-FC6H4IF4 (x=2, 3, 4) reacts with C6F5BF2 in CH2Cl2 and forms [x-FC6H4(C6F5)IF2][BF4] salts in good yields. For [4-FC6H4(C6F5)IF2][BF4] the fluoro-oxidizer property is shown in reactions with weakly reducing agents like E(C6F5)(3) (E=P, As, Sb, Bi) and ArI (Ar=4-FC6H4, C6F5). The fluorine/aryl substitution method is also applied to the synthesis of [(4-FC6H4)(2)[F-2][BF4], an example with two identical aryl groups in the difluoroiodonium(V) moiety. (C) 2010 Elsevier Ltd. All rights reserved.