Keggin and Aluminum oxide Grafted on TiO2 and MCM-41 Nanostructure Materials as Efficient and Reusable Catalysts for the Synthesis of Oxindole Derivatives

Aluminium and Keggin grafted on nanostructure oxides have been found to be efficient reusable heterogeneous catalysts for the clean and three-omponent synthesis of oxindoles.these processes provide several advantages such as recoverable catalyst, mild reaction conditions, high yields of products, and operational simplicity.

کلیدواژه ها:

Hetropoly acid on TiO2 ، Al-MCM-41 ، Isatin ، 1H-pyrazol-5-amine ، Oxindoles