One‐Pot, Three‐Component Synthesis of 2,3‐Dihydro‐4(1H)‐quinazolinones by Montmorillonite K‐10 as an Efficient and Reusable Catalyst

Abstract

A wide range of mono‐ and disubstituted dihydroquinazolinones were synthesised via condensation of isatoic anhydride, primary amines, or ammonium salts with aromatic aldehydes in the presence of montmorillonite K‐10. The catalyst is reusable and could be recycled for several runs without any decrease in its efficiency.

Keywords:

• 2,3‐Dihydroquinazolin‐4(1H)‐ones
• heterogeneous catalysis
• montmorillonite K‐10

Acknowledgment

Financial support by the Research Council of Shahid Beheshti University is gratefully acknowledged.