Obaiah, O.; Kebbahalli, N. N.; Goravanahalli, R. M.; Chottanahalli, P. S.; Kanchugarakoppal, R. S.; Kempegowda, M. Synthesis of 2-Aryl Substituted 2,3-Dihydroquinazoline-4(1H)-Ones under Solvent Free Conditions Using Ionic Liquid As a Mild and Efficient Catalyst. Eur. J. Chem. 2014, 5, 671-675.