Stannous Chloride in Alcohol: A One-Pot Conversion of 2-Nitro-<i>N</i>-arylbenzamides to 2,3-Dihydro-1<i>H</i>-quinazoline-4-ones

Abstract

A novel one-step synthesis of 2,3-dihydro-1H-quinazolin-4-ones from 2-nitrobenzamides is reported. These reactions are mediated by stannous chloride in 0.02 M methanolic or ethanolic HCl solution and proceed in good yields.