Abstract
Abstract: A three-component reaction under ultrasound irradiation and with a catalytic amount of citric acid was presented for the synthesis of a series of 2-aryl-quinazolin-4(1H)-ones with excellent efficiency and short reaction time. This one-pot reaction with 2-aminobenzonitrile, ammonium hydroxide or glycine and benzaldehydes is a clean and safe route for the environment at room temperature. Mild reaction conditions, green environment, excellent performance, simple method and reduction of environmental consequences are the advantages of the present method. The structures of many synthesized 2-aryl-quinazolin-4(1H)-one compounds were confirmed by 1H, 13C NMR and FTIR spectral data and elemental analysis.
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