Quinazolin-4(3H)-ones: A Tangible Synthesis Protocol via an Oxidative Olefin Bond Cleavage Using Metal-Catalyst Free Conditions

An efficient and selective oxidative procedure for the synthesis of quinazolinones from readily available o-aminobenzamides and styrenes was developed. A number of potentially pharmacologically relevant quinazolinones were prepared using metal- and catalyst-free conditions. The synthesis procedure highlights the sustainable operation, low-priced, free from perilous materials, green solvent and environmental affability. The synthesized products were isolated in moderate to excellent yields.