Abstract Light induced oxidation of various of 2-substituted 2, 3-dihydroquinazolin-4 (1H)- ones (DHQZs) results smoothly the formation of quinazolin-4 (3H)-ones (QZs) product. The electronic nature of the substituent on the 2-position and also the nature of solvent affect the rate of reaction, which supports the proposed mechanism based on the electron-transfer induced photo-oxidation. Analysis of the computational results obtained at the DFT-B3LYP ...
