TiO2/CNTs Nanocomposite: An Eco-Friendly and Re-Usable Catalyst for the Synthesis of Cyclopenta[b]chromen-1(9H)-ones in Aqueous Media

چکیده مقاله

Abstract—One-pot pseudo three-component reaction in a 1:2 mole ratio of salicylaldehydes and 1,3-cyclopentanedione respectively, at 70 ˚C in water and in the presence of TiO2-CNTs nanocomposite affords 2,3-dihydro-9-(2-hydroxy-5-oxocyclopent-1-enyl)cyclopenta[b]chromen-1(9H)-ones in high to excellent yields. The present methodology offers several advantageous such as excellent yields, short reaction times, reusability of catalyst, operational simplicity, and mild reaction conditions.