Alkylation of deactivated arenes by alkanes in the presence of aprotic organic superacid CBr4·2AlBr3.
1997
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.
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