Acylation of alcohols catalyzed by using 1,3-dibromo-5,5-dimethylhydentoin or trichloroisocyanuric acid

An efficient method for the acylation of alcohols by using acetic anhydride and a catalytic amounts of 1,3-dibromo-5,5-dimethylhydantoin and/or trichloroisocyanuric acid under mild and heterogeneous conditions at room temperature described in good to excellent yields.