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Campo DC | Valor | Lengua/Idioma |
---|---|---|
dc.contributor.author | Cruz lopez, María del Carmen | - |
dc.date.accessioned | 2012-11-25T22:51:29Z | - |
dc.date.available | 2012-11-25T22:51:29Z | - |
dc.date.issued | 2012-11-25 | - |
dc.identifier.uri | http://www.repositoriodigital.ipn.mx/handle/123456789/8533 | - |
dc.description | Artículo | es |
dc.description.abstract | The intramolecular cyclization of the b-substituted olefins methyl 2-aryloxy-3-dimethylaminopropenoates 3a–3f catalyzed by Lewis acids leads to a short and novel synthesis of benzofurans 2a–2f. When the olefins 4-dimethylamino-3-aryloxy-3-buten-2-ones 4a–4f were used, the cyclization process was faster and provided the corresponding substituted 2-acetylbenzofurans 1a–1f. Among the latter, naturally occurring compounds calebertin (1a), caleprunin A (1b), and caleprunin B (1c) were prepared in good overall yields. These benzofurans were also obtained by direct treatment under MW irradiation of the precursors 1-aryloxypropan-2-ones 7a–7c with DMFDMA, followed by addition of the catalyst, resulting in a route that was one step shorter. | es |
dc.description.sponsorship | Instituto Politécnico Nacional CIBA-Tlaxcala | es |
dc.language.iso | en | es |
dc.subject | Calea | es |
dc.title | An efficient synthesis of benzofurans and their application in the preparation of natural products of the genus Calea | es |
dc.type | Article | es |
dc.description.especialidad | Medico-Biológicas | es |
dc.description.tipo | es | |
Aparece en las colecciones: | Artículos |
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Fichero | Descripción | Tamaño | Formato | |
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Articulos ISI CarmenCruz-5.pdf | 59.99 kB | Adobe PDF | Visualizar/Abrir |
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