Silica-ZnCl<sub><b>2</b></sub>: An Efficient Catalyst for the Synthesis of 4-Methylcoumarins

<table>Recyclability of silica-ZnCl<sub>2</sub> (100 mg) in the present reaction.</table>

International Scholarly Research Notices

Figure 2: Silica-ZnCl<sub><b>2</b></sub>: An Efficient Catalyst for the Synthesis of 4-Methylcoumarins 