Microwave in Ionic Liquid Synthesis

Abstract

Ionic liquids have been used as green solvents in synthesis and catalysis due to their negligible vapor pressure, high stability and formation of biphasic systems.In addition, the exclusive presence of ions enables the development of efficient synthetic methodologies based on both ionic liquids as solvent and microwave heating.However, the usual protocols to preparation of ionic liquids demand large volume of volatile organic solvents and demand great energy consumption, what are not in agreement with Green Chemistry concept.On the other side, microwave activation arises as an important tool aiming waste reduction and energy economy in ionic liquid synthesis.In this review is discussed the evolution of the microwave ovens in ionic liquid synthesis and the influence of the substrate on the experimental conditions.