Deactivated arenes (di- and tri-halobenzenes, acetophenone, benzophenone and methylbenzoate) have been shown to be alkylated by alkanes and cycloalkanes (propane, n-butane, cyclopentane) in the presence of superacid CBr4·2AlBr3 in the range -40 to 0°C; in some cases selective and effective mono- or di-alkylation can be achieved.
A. V. Orlinkov, I. S. Akhrem, L. V. Afanas'eva, E. I. Mysov and M. E. Vol'pin, Mendeleev Commun., 1997, 7, 61 DOI: 10.1070/MC1997v007n02ABEH000679
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