OICC Press Iranian Journal of Catalysis 2345-4865 2 2 2024 02 03 Sulfonated Porous Carbon (SPC): An efficient and recyclable solid acid catalyst for one-pot three-component synthesis of 2,3-dihydroquinazolin-4(1H)-ones under solvent-free conditions EN Arash Shokrolahi Chemistry Department, Malek-ashtar University of Technology, Shahin Shahr, P.O.Box 83145-115, I. R. Iran. Abbas Zali Chemistry Department, Malek-ashtar University of Technology, Shahin Shahr, P.O.Box 83145-115, I. R. Iran. Mohammad Ali Zarei Chemistry Department Faculty of Materials, Malek-ashtar University of Technology, Tehran, I.R. Iran. Karim Esmaeilpour Chemistry Department, Malek-ashtar University of Technology, Shahin-shahr, P.O.Box 83145-115, I. R. Iran. Journal Article 2024 02 03 A simple and efficient procedure has been developed for the synthesis of 2,3-dihydroquinazolin-4(1H)-ones derivatives under solvent-free conditions. This method uses the condensation of isatoic anhydride, aldehydes, and amines in the presence of a catalytic amount Sulfonated Porous Carbon (SPC). One of the important advantages of the new method is that the SPC could be recycled and reused.