New book chapter on Microwaves in Green Chemistry

Since the first publications on the use of microwave irradiation in synthetic chemistry, it was clear that this methodology would have a marked influence in all areas of this discipline. Reduction of reaction times, improved yields, modifications of selectivities, increased product purities and simplification of work-up procedures were described and, in most cases, these conditions and results could not be achieved by classical heating. This methodology can be included within the concept of Green Chemistry because the strong absorption of microwave irradiation by one component of the reaction would lead to shorter reaction times and improved energy efficiency. Moreover, the synergy with solvent-free conditions, solid catalysts and green solvents has expanded the green applications of this non-conventional energy source. Finally, the use of flow systems, another green methodology, has permitted the scale-up of microwave-assisted reactions under green conditions.

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