fɔːɹ ɛɡzˈæmpəl, tɹˌaɪmɪθˌɪləksˈoʊniəm tˈɛtɹɐflˌʊɹɹəbɚɹˌeɪt, wˌɪtʃ ɹɪˈækts slˈʌɡɪʃli dˈuː tʊ ɪts lˈoʊ sˌɑːljuːbˈɪlᵻɾi ɪn mˈoʊst kəmpˈæɾᵻbəl sˈɑːlvənts, mˈeɪ biː kənvˈɜːɾᵻd ɪn sˈɪɾuː tə hˈaɪɚɹ ˈælkaɪl slˈæʃ mˈoːɹ sˈɑːljuːbəl ɑːksˈoʊniəmz, ðɛɹbˈaɪ ɐksˈɛlɚɹˌeɪɾɪŋ ˌælkɪlˈeɪʃən ɹɪˈækʃənz.
For example, trimethyloxonium tetrafluoroborate, which reacts sluggishly due to its low solubility in most compatible solvents, may be converted in situ to higher alkyl/more soluble oxoniums, thereby accelerating alkylation reactions.