Several aryl substituted ketones, cyclic ketones, 1, 3-diketones and a β-ketoamide were halogenated with N-halosuccinimides under solvent-free reaction conditions (SFRC) at various temperatures (20–80° C), whereas less enolized ketones required the presence of an acid catalyst (p-toluenesulfonic acid, PTSA). Bromination of substituted acetophenones obeys first order kinetics v= kBr [ketone] and the following correlation with the keto–enol ...
