An efficient and facile ultrasonic-accelerated one-pot synthesis of N-acetyl-2-aryl-1, 2-dihydro-(4H)-3,1-benzoxazin-4-ones
作者:Davood Azarifar、Davood Sheikh
DOI:10.1002/hc.20663
日期:——
An application of ultrasonic irradiation in the one-potsynthesis of N-acetyl-2-aryl-1,2-dihydro-(4H)-3,1-benzoxazin-4-ones from the condensation reaction between aromatic aldehydes and anthranilic acid in the presence of excess amount of acetic anhydride has been explored. The reactions proceed smoothly under mild and solvent-free conditions at room temperature in the absence of any catalyst to afford