C([O-])(=O)C.C([O-])(=O)C.[CH3:9][O:10][C:11]1[CH:16]=[CH:15][C:14]([IH+:17])=[CH:13][CH:12]=1.[CH3:18][O:19][C:20]1[CH:25]=[CH:24][C:23]([IH+])=[CH:22][CH:21]=1.[F:27][C:28]([F:33])([F:32])[C:29]([OH:31])=[O:30].C1(OC)C=CC=CC=1>ClCCl>[F:27][C:28]([F:33])([F:32])[C:29]([O-:31])=[O:30].[CH3:9][O:10][C:11]1[CH:16]=[CH:15][C:14]([I+:17][C:23]2[CH:24]=[CH:25][C:20]([O:19][CH3:18])=[CH:21][CH:22]=2)=[CH:13][CH:12]=1Under N2 protection, 1.41 g (4 mmol) p-methoxyphenyliodonium diacetate was dissolved in 30 mL of dry dichloromethane and the solution was cooled to −30° C. 0.61 mL (8 mmol) of trifluoroacetic acid was added and the solution was slowly brought back to room temperature and stirred at room temperature for 30 minutes. The solution was, again, cooled to −30° C. and 0.44 mL (4 mmol) anisole was added slowly and the mixture was warmed back up to room temperature and stirred for 1 hour. The solvent was evaporated and the residual solid was recrystallized from diethylether/dichloromethane to give 1.53 g bis(p-methoxyphenyl)iodonium trifluoroacetate (71%).
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