| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 68548 | Journal of Molecular Catalysis A: Chemical | 2006 | 4 Pages |
Abstract
Substituted coumarins are synthesized from phenols and ethyl acetoacetate or methyl acetoacetate via Pechmann condensation using heterogeneous recyclable catalyst (HClO4·SiO2) under solvent-free conditions. This method is simple, cost effective, requires short reaction times and benefits from the elimination of production of acidic waste streams generated with conventional acid catalyst to give good yields.
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Related Topics
Physical Sciences and Engineering
Chemical Engineering
Catalysis
Authors
Muchchintala Maheswara, Vidavalur Siddaiah, Guri Lakishmi Vasantha Damu, Yerra Koteswara Rao, Chunduri Venkata Rao,