STUDY OF USING [BMIM][PF6] IONIC LIQUID AS A GREEN SOLVENT AND CATALYST FOR THE SCHIFF BASE SYNTHESIS

Abstract

The [BMIM][PF6] ionic liquid that derived from dialkylimidazolium cations was
synthesized using MW-assisted method under solvent-free condition. The synthesis of paraanisidineacetylacetone was then conducted in [BMIM][PF6] ionic liquid as solvent with good conversion after 6 hours under ambient condition without added catalyst. Interestingly, the recycle of [BMIM][PF6] ionic liquid was performed. The results showed that [BMIM][PF6] ionic liquid can be recovered and successfully recycled into subsequent reactions without significant loss of activity.

Keywords: Ionic liquids, dialkylimidazolium, [BMIM][PF6], p-anisidineacetylacetone, Schiff Base.