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Coumarin Derivatives Solvent-Free Synthesis under Microwave Irradiation over Heterogeneous Solid Catalysts
dc.contributor.author | Bouasla, Souad | |
dc.contributor.author | Amaro-Gahete, J. | |
dc.contributor.author | Esquivel, Dolores | |
dc.contributor.author | López, M. Isabel | |
dc.contributor.author | Jiménez-Sanchidrián, César | |
dc.contributor.author | Teguiche, Mabrouk | |
dc.contributor.author | Romero-Salguero, F.J. | |
dc.date.accessioned | 2018-11-02T10:25:12Z | |
dc.date.available | 2018-11-02T10:25:12Z | |
dc.date.issued | 2017 | |
dc.identifier.uri | http://hdl.handle.net/10396/17401 | |
dc.description.abstract | A suitable methodology of synthesis of coumarin derivatives by Pechmann reaction over heterogeneous solid acid catalysts in a free solvent media under microwave irradiation is described. Resorcinol, phenol and ethyl acetoacetate were selected as model reactants in the Pechmann condensation. The catalytic activity of several materials—Amberlyst-15, zeolite and sulfonic acid functionalized hybrid silica—in solvent-free microwave-assisted synthesis of the corresponding coumarin derivatives has been investigated in detail. 7-Hydroxy-4-methylcoumarin and 4-methylcoumarin were obtained in 97% and 43% yields, respectively, over Amberlyst-15. This was the most active catalyst in the Pechmann reaction under studied conditions | es_ES |
dc.format.mimetype | application/pdf | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | MDPI | es_ES |
dc.rights | https://creativecommons.org/licenses/by/4.0/ | es_ES |
dc.source | Molecules 22(12), 2072 (2017) | es_ES |
dc.subject | Phenol | es_ES |
dc.subject | Ethyl acetoacetate | es_ES |
dc.subject | Solvent-free | es_ES |
dc.subject | Microwave irradiation | es_ES |
dc.subject | Heterogeneous acid catalysts | es_ES |
dc.title | Coumarin Derivatives Solvent-Free Synthesis under Microwave Irradiation over Heterogeneous Solid Catalysts | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.relation.publisherversion | http://dx.doi.org/10.3390/molecules22122072 | es_ES |
dc.relation.projectID | Junta de Andalucía. FQM-346 | es_ES |
dc.relation.projectID | Gobierno de España. MAT2013-44463-R | es_ES |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es_ES |