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An Efficient Solvent-Free Synthesis of 2-Hydroxy-2-(trifluoromethyl)-2H-chromenes Using Silica-Immobilized L-Proline

An efficient synthesis of 2-hydroxy-2-(trifluoromethyl)-2H-chromene-3-carboxylates was carried out under solvent-free conditions in an oven or microwave oven via the Knoevenagel condensation of salicylaldehydes with ethyl trifluoroacetoacetate followed by intramolecular cyclization in the presence o...

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Detalles Bibliográficos
Autores principales:	Xu, Cuilian, Yang, Guoyu, Wang, Caixia, Fan, Sufang, Xie, Lixia, Gao, Ya
Formato:	Online Artículo Texto
Lenguaje:	English
Publicado:	MDPI 2013
Materias:	Article
Acceso en línea:	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6290574/ https://www.ncbi.nlm.nih.gov/pubmed/24077175 http://dx.doi.org/10.3390/molecules181011964

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