Synthesis of 2,3-Dihydroquinazolin-4(1H)-ones Promoted by Polystyrene Sulfonic Acid

Document Type : Research Paper


1 Payame Noor University

2 Yazd University

3 Departmentb of Chemistry, Tehran Centre branch, Payam-e-Noor University, Tehran, IRAN


In this research, we have synthesized polystyrene sulfonic acid as a new heterogeneous solid acid. Then, we have synthesized 2,3-dihydroquinazolin-4(1H)-ones via condensation of 2-aminobenzamide and different aldehydes in the presence of polystyrene sulfonic acid. The major advantages of the present method are good yields, ecofriendly and easy work-up.