Sulfuric Acid → 9-Acetyl-3-bromocarbazole

Participants

Reaction Steps

20 g of 3-bromocarbazole was converted to its acetyl derivative by refluxing with acetic anhydride (3 vol) with traces of conc. sulfuric acid. Aqueous workup yielded an off-white solid, which was then washed with n-hexane and dried under vacuum to obtain 23 g 9-acetyl-3-bromocarbazole, quantitatively. And N-acetyl derivative of carbazole, benzocarbaole and dibenzocarbazoles were prepared following the same procedure.

Provenance & Evidence