Expeditious Entry to Novel 2-Methylene-2,3-dihydrofuro[3,2-c]chromen-2-ones from 6-Chloro-4-hydroxychromen-2-one and Propargylic Alcohols

A catalytic system consisting of the ruthenium(II) complex [Ru(η(3)-2-C(3)H(4)Me)(CO)(dppf)][SbF(6)] (dppf = 1,1’-bis(diphenylphosphino)ferrocene) and trifluoroacetic acid has been used to promote the coupling of secondary propargylic alcohols with 6-chloro-4-hydroxychromen-2-one. The reactions affo...

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Detalles Bibliográficos
Autores principales: Nebra, Noel, Díaz-Álvarez, Alba E., Díez, Josefina, Cadierno, Victorio
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2011
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6264367/
https://www.ncbi.nlm.nih.gov/pubmed/21811223
http://dx.doi.org/10.3390/molecules16086470
Descripción
Sumario:A catalytic system consisting of the ruthenium(II) complex [Ru(η(3)-2-C(3)H(4)Me)(CO)(dppf)][SbF(6)] (dppf = 1,1’-bis(diphenylphosphino)ferrocene) and trifluoroacetic acid has been used to promote the coupling of secondary propargylic alcohols with 6-chloro-4-hydroxychromen-2-one. The reactions afforded unusual 2-methylene-2,3-dihydrofuro[3,2-c]chromen-2-ones in good yields.

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