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Synthesis of 3-Carboxycoumarins from O-Methoxybenzylidene Meldrum's Acid Derivatives |
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| Authors: | Verónica Armstrong Oriana Soto Jaime A. Valderrama Ricardo Tapia |
| Affiliation: | Facultad de Química. Pontificia Universidad Católica de Chile. , Casilla 6177, Santiago, Chile |
| Abstract: | Reaction of o-methoxybenzaldehydes with Meldrum's acid followed by cyclization in sulfuric acid of the benzylidene derivatives 3a-g affords 3-carboxycoumarins in excellent yields. |
| Keywords: | |