Facile synthesis of 4H-chromene derivatives via base-mediated annulation of ortho-hydroxychalcones and 2-bromoallyl sulfones

The cesium carbonate-mediated reaction of 2-bromoallyl sulfones and ortho-hydroxychalcones furnished 3-arylsulfonyl-4H-chromene derivatives in 58–67% yield (18 examples). 2-Bromoallyl sulfones functioned as synthetic surrogates for allenyl sulfones in the reaction.

Detalles Bibliográficos
Autores principales: Thadkapally, Srinivas, Kunjachan, Athira C, Menon, Rajeev S
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Beilstein-Institut 2016
Materias:
Letter
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4734429/
https://www.ncbi.nlm.nih.gov/pubmed/26877804
http://dx.doi.org/10.3762/bjoc.12.3

Internet

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4734429/
https://www.ncbi.nlm.nih.gov/pubmed/26877804
http://dx.doi.org/10.3762/bjoc.12.3

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