One-Pot Facile Synthesis of Acridine Derivatives under Solvent-Free Condition

N,Nʹ-Dibromo-N,Nʹ-1,2-ethanediylbis(p-toluenesulfonamide) [BNBTS] as a reusable catalyst promoted one-pot synthesis of benzo[c]acridines in good to high yields under three-component reaction from anilines, aldehydes and cyclic 1,3-dicarbonyl compounds under solvent-free conditions.