M Esmaeilpour - Department of Chemistry, College of sciences, Shiraz University, Shiraz 71946 84795 Iran
A.R Sardarian - Department of Chemistry, College of sciences, Shiraz University, Shiraz 71946 84795 Iran
H Eslahi - Department of Chemistry, College of sciences, Shiraz University, Shiraz 71946 84795 Iran

Fe3O4@SiO2/Schiff base complex of Cu(II) efficiently catalyzes condensation reaction of isatoic anhydride, aldehydes, and primary amines or ammonium salts to afford the corresponding 2,3-dihydroquinazolin-4(1H)-one derivatives in ethanol under reflux conditions. This method gives notable advantages such as easy work-up, high yields, short reaction times. Also, the aforementioned nanocatalyst can be easily recovered by a magnetic field and reused for subsequent reactions for at least 8 times without noticeable deterioration in catalytic activity.

2, 3-Dihydroquinazolin-4(1H)-ones, Isatoic anhydride, One-pot synthesis, Magnetic nanocatalyst, Recyclable catalyst