A Green and Efficient Method for the Preparation of 3,4-Dihydropyrimidin-2(1<i>H</i>)-ones Using Quaternary Ammonium-Treated Clay in Water

<table>Schematic illustration of the reaction.</table>

Journal of Chemistry

Figure 4: A Green and Efficient Method for the Preparation of 3,4-Dihydropyrimidin-2(1<i>H</i>)-ones Using Quaternary Ammonium-Treated Clay in Water 