An economic and environmentally benign procedure was
developed for the one pot synthesis of 3,4-dihydropyrimidin-
2-(1H)-ones in a short reaction time. The method offers several
advantages including high yield of product and easy workup. In
many cases, the products were crystallized directly from the
reaction mixture in high purity. Since a non toxic and commercially
available catalyst was used, the procedure should
find important applications in the synthesis of
3,4-dihydropyrimidin-2(1H)-ones.