Over the past decade, ionic liquids (ILs), salts with melting points near room temperature, have been a subject of intense research as a customizable replacement for the conventional organic solvents used in industry and academia. The market for ionic liquids is burgeoning; these compounds have been used as effective reaction media for a wide range of organic reactions and other applications in chemistry [1]. Selective bromination of aromatic compounds is an important reaction in organic synthesis. Therefore, various methods have been developed for the bromination of aromatic rings [2-4]. In the present work, we report an efficient procedure for the synthesis of ionic liquid based on imidazolium-trihalide has been described. Imidazolium-trihalide has been found that can be bromination of aromatic compounds with good yields within very short reaction time under solvent-free conditions. The reagent can be recovered and reused several times (Scheme 1).

Keywords