Chavan, L. D.; Deshmukh, S. N.; Shankarwar, S. G. A Simple and Green Protocol for the Synthesis of 3,4-Dihydropyrimidin-2(1H)-Ones Using 11-Molybdo-1-Vanado Phosphoric Acid As a Catalyst Under Ultrasound Irradiation. Orbital: Electron. J. Chem. 2019, 11, 314-320.