CuO-CeO2 nanocomposite as a green and efficient recyclable catalyst for the multicomponent synthesis of 2-amino-4H-chromene derivatives

CuO-CeO2 nanocomposite as a green and highly efficient recyclable catalyst, catalyzed multicomponent synthesis of 2-amino-4H-chromene derivatives under solvent-free conditions. This catalyst can be easily recovered by simple filtration and recycled up to 7 consecutive runs with consistent activity. The procedure provides some advantages such as simple work-up, clean procedure, short reaction times and high yields of the products.