SEARCH Articles Figures Tables Initiators triethyloxonium tetrafluoroborate Tetrafluoroborate triethyloxonium reaction Triethyloxonium tetrafluoroborate Triethyloxonium tetrafluoroborate Triethyloxonium tetrafluoroborate catalyst Triethyloxonium tetrafluoroborate initiation Triethyloxonium tetrafluoroborate regioselectivity Triethyloxonium tetrafluoroborates alkylation with