An Easy and Efficient Protocol for the Synthesis of 2,3-Dihydroquinazolinones Using a Low Cost and Reusable Heterogeneous Catalyst

Abstract

Clays revealed high catalytic activity for the synthesis of a series of substituted 2, 3-dihydro-2-phenylquinazolin-4(1H)-one. The synthesis was carried out by reacting Anthranilamide and various substituted aldehydes in acetonitrile at roo m temperature in the presence of a small amount of the catalyst. Several solvents were examined for this reaction; however, in terms of reaction yield and time, Acetonitrile was found to be the optimu m solvent.

Grafting Polypropylene under Ultrasonic in Water Suspension System

“…GP minimized without applying ultrasonic and ultrasound has played a catalytic role on the PP grafting rate. The reason is that the unique ultrasonic cavitation can promote homogeneous interfacial turbulence and heterogeneous interfacial update [7] . Interface agent may carry the monomers and initiator spread into the interior PP quickly and accelerate the swelling process of PP.…”