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Título: | A convenient entry to 5-sp2-substituted and 5,5-disubstituted tetronic acids |
Autor: | Tejedor, David CSIC ORCID CVN ; Santos-Expósito, Alicia; García-Tellado, Fernando CSIC ORCID | Palabras clave: | Alkynes Lactones Aminations Cyclizations Michael additions |
Fecha de publicación: | 12-jun-2006 | Editor: | Thieme | Citación: | Synlett 2006(10): 1607-1609 (2006) | Resumen: | A one-pot, convenient and general access to 5-sp2-substituted and 5,5-disubstituted tetronic acids is described. The protocol embodies two consecutive chemical events: a Michael addition of pyrrolidine on a secondary or tertiary γ-hydroxy-α,β-alkynyl ester derivative to give the corresponding enamine, and the subsequent acid-catalyzed hydrolysis-lactonization of this intermediate to afford the tetronic acid derivative. | Descripción: | 3 pages, 1 figure, 1 table, 2 schemes. | Versión del editor: | http://dx.doi.org/10.1055/s-2006-941596 | URI: | http://hdl.handle.net/10261/13273 | DOI: | 10.1055/s-2006-941596 | ISSN: | 0936-5214 |
Aparece en las colecciones: | (IPNA) Artículos |
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