Efficient and Green Synthesis of Acridinedione Derivatives Using Highly Fe3O4@Polyaniline-SO3H as Efficient Heterogeneous Catalyst

Abstract

In the present investigation, an efficient heterogeneous catalyst system made of a polyaniline-derived polymer (Poly [anthranilic acid]-[N-(1′,3′-phenylenediamino) −3-butane sulfonate]) and iron oxide nanoparticles (Fe3O4 NPs) is presented. Firstly, this novel catalytic system (Fe3O4@Polyaniline-SO3H) has been fabricated via a convenience method and magnetized via an in situ process. The as-prepared solid acid catalyst was also carefully analyzed by Fourier transfer infrared spectroscopy (FTIR) and energy-dispersive X-ray spectroscopy (EDX). It has been suitably applied for the one-pot multicomponent synthesis of acridinediones as an important class of heterocyclic compounds. The first and foremost advantage of this catalytic system is that the (Fe3O4@Polyaniline-SO3H) is magnetically separated from the reaction mixture through their high paramagnetic behavior. The main attractive characteristics of the presented green protocol are very short reaction times, excellent yields, and the avoidance of hazardous or toxic reagents and solvents. Easy separation, high reusability, cost-effective and mild catalyst are important advantages of the new catalyst in comparison to other catalysts for the synthesis of acridinedione derivatives via one-pot four-component reaction.