Ladole, C. A.; Salunkhe, N. G.; Bhaskar, R. S.; Aswar, A. S. A Microwave-Assisted Synthesis of 3,4-Dihydropyrimidin-2(1H)-One Thione Derivatives Using Nanocrystalline MgFe2O4 As Catalyst. Eur. J. Chem. 2014, 5, 122-126.