Abstract:
The reaction of different aryl halides with aryl oxides catalyzed by CuCl in 1-butyl-3-methyl-imidazolium tetrafluoroborate [bmim][BF4] and 1-butyl-3-methyl-imidazolium hexafluorophosphate [bmim][PF6] ionic liquids to give diaryl ethers in 54–90% yields has been studied under mild reaction conditions.