Functionalized nanomagnetic graphene by ion liquid containing phosphomolybdic acid for facile and fast synthesis of paracetamol and aspirin

Abstract

A nanocomposite has been synthesized by supporting of polyaniline‐modified polyoxometalate‐paired poly(ionic liquid) on the surface of magnetic graphene and characterized by various techniques. The fabricated nanocomposite was found to be a versatile catalyst for the synthesis of paracetamol and aspirin drugs showing high activity and selectivity. The observed high catalytic activity of the newly synthesized catalyst, in the preparation of these two important drugs, can be attributed to the presence of graphene, which provides high surface area for the supporting of polyaniline–polyoxometalate pair and also to the strong acidity of the solid acid. This catalytic system has several advantages, such as simple experimental process, easy separation of the product, solvent‐free condition, efficient isolation, and recovery of the magnetic catalyst as well as high reusability.