CuI Nanoparticles Catalyzed Solvent-Free Synthesis of 1H-Indole-2,3-dione Derivatives

چکیده مقاله

Abstract—Efficient solvent-free reaction of oxalic acid with various 4-substituted anilines was carried out using a catalytic amount of CuI nanoparticles (CuI NPs) as an efficient heterogeneous catalyst to afford the corresponding 1H-indole-2,3-diones (isatins) in excellent yields.