Polystyrene-supported bromoderivative of 2-pyrrolidone: synthesis, characterization and application in microwave-assisted bromination reactions.

A novel, microwave safe and recyclable polymeric reagent was prepared by anchoring bromoderivative of 2-pyrrolidone in the polymer matrix of 3% tetraethyleneglycol diacrylate cross-linked polystyrene. The synthetic utility of the prepared polymeric reagent was demonstrated by the efficient bromination of unsaturated compounds, activated aromatic compounds and also for the α-bromination of ketones under microwave activation. Operational simplicity, moderate to excellent yield of the products, shorter reaction time and dry reaction medium are the foremost attraction of this protocol. Moreover, the synthesized functional polymer was stable under standard laboratory conditions and can be kept for several months without any significant loss of activity. [ABSTRACT FROM AUTHOR]