Magnetically Recoverable Vanadium Catalysts for O-Acetylation of Alcoholes Under Solvent-Free Conditions

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 [۱], 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 [۲].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 greenchemistry. Solvent-free conditions have advantages, such as simple reactors, easy work-up procedures, short reaction times and environmentally benignancy [۳, ۴].The present paper explains that this approach allowed us to prepare the most active heterogeneous vanadium catalysts for the selective acetylation of alcohols .The paper also addresses a few important and interesting aspects of the catalytic reaction such as activity and selectivity for various substituents at the alcohols; also, recovery and reuse of the catalyst.