The expansion of catalytic methods is a focus of contemporary interest due to the adverse effects of the manufacturing process of fine chemicals, pharmaceuticals, and materials on the environment. According to the green chemistry principles [1], the “green” catalyst is the one that can be simply removed from the reaction mixture and reused. In this field, magnetic nanoparticles have been the focus of great attention as a magnetically separable matrix for catalysts [2]. Also, it is clear that green chemistry not only requires the use of “green” catalyst but also development of solvent-free reactions is one of the most important research threads in green chemistry. Solvent-free conditions have advantages, such as simple reactors, easy work-up procedures, short reaction times and environmentally benignancy [3, 4].
