Enantioselective Michael Addition of 3-Aryl-Substituted Oxindoles to Methyl Vinyl Ketone Catalyzed by a Binaphthyl-Modified Bifunctional Organocatalyst

The enantioselective conjugate addition reaction of 3-aryl-substituted oxindoles with methyl vinyl ketone promoted by binaphthyl-modified bifunctional organocatalysts was investigated. The corresponding Michael adducts, containing a quaternary center at the C3-position of the oxindoles, were general...

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Detalles Bibliográficos
Autores principales: Lee, Hyun Joo, Woo, Saet Byeol, Kim, Dae Young
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2012
Materias:
Communication
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6268444/
https://www.ncbi.nlm.nih.gov/pubmed/22710826
http://dx.doi.org/10.3390/molecules17067523
Descripción
Sumario:The enantioselective conjugate addition reaction of 3-aryl-substituted oxindoles with methyl vinyl ketone promoted by binaphthyl-modified bifunctional organocatalysts was investigated. The corresponding Michael adducts, containing a quaternary center at the C3-position of the oxindoles, were generally obtained in high yields with excellent enantioselectivities (up to 91% ee).

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