Facile and systematic access to the least-coordinating WCA [(R^FO)₃Al-F-Al(OR^F)₃]^- and its more Lewis-basic brother [F-Al(OR^F)₃]^- (R^F = C(CF₃)₃).

ABSTRACT: By reaction of the Lewis acid Me₃Si-F-Al(OR^F)₃ with a series of [PF₆]^- salts, gaseous PF₅ and Me₃Si-F are liberated and salts of the anion [F-Al(OR^F)₃]^- ([f-al]^-; R^F = C(CF₃)₃) can be obtained. By addition of another equivalent of Me₃Si-F-Al(OR^F)₃ to [f-al]^-, gaseous Me₃Si-F is released and salts of the least coordinating anion [(R^FO)₃Al-F-Al(OR^F)₃]^- ([al-f-al]^-) are formed. Both procedures work for a series of synthetically useful cations including Ag⁺, [NO]⁺, [Ph₃C]⁺ and in

SUBMITTER: Martens A 

PROVIDER: S-EPMC6137444 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature