%0 Journal Article %T Synthesis of 3,4-Dihydropyrimidin-2(1H)-Ones and Their Corresponding 2(1H)Thiones Using Trichloroacetic Acid as a Catalyst under Solvent-Free Conditions %A Zahed Karimi-Jaberi %A Mohammad Sadegh Moaddeli %J ISRN Organic Chemistry %D 2012 %I Hindawi Publishing Corporation %R 10.5402/2012/474626 %U http://dx.doi.org/10.5402/2012/474626