Synthesis of substituted flavones and arylchromones using P and Si keggin heteropolyacids as catalysts
A simple and clean procedure for the preparation of functionalized flavones and chromones using commercial Keggin heteropolyacid in acetonitrile medium is described for the cyclization of 1-(2-hydroxyaryl)-3-aryl-1,3-propanodiones. Sixteen examples are reported, yields ranging in 60-91%; five substi...
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2007 |
| País: | Argentina |
| Institución: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repositorio: | CONICET Digital (CONICET) |
| Idioma: | inglés |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/16753 |
| Acceso en línea: | http://hdl.handle.net/11336/16753 |
| Access Level: | acceso abierto |
| Palabra clave: | 1-(2-Hydroxyaryl)-3-Aryl-1,3-Propanodiones Clean Procedure https://purl.org/becyt/ford/2.4 https://purl.org/becyt/ford/2 |
| Sumario: | A simple and clean procedure for the preparation of functionalized flavones and chromones using commercial Keggin heteropolyacid in acetonitrile medium is described for the cyclization of 1-(2-hydroxyaryl)-3-aryl-1,3-propanodiones. Sixteen examples are reported, yields ranging in 60-91%; five substituted 2-naphthylchromones are prepared for the first time |
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