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Convergent Synthesis of 2H-Chromenes – a Formal [3+3] Cycloaddition by a One-pot, Three-Step Cascade
In cases in which the palladium-catalyzed coupling of a bromoquinone with a vinyl stannane affords a vinyl quinone that enolizes, the resulting ortho-quinone methide undergoes an oxa-6π electrocyclization. Enolization is promoted by the presence of a polar additive. The net conversion is a formal [3...
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| Main Authors: | , |
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| Formato: | Artigo |
| Idioma: | Inglês |
| Publicado em: |
2011
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| Assuntos: | |
| Acesso em linha: | https://ncbi.nlm.nih.gov/pmc/articles/PMC3258501/ https://ncbi.nlm.nih.gov/pubmed/22259219 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1016/j.tet.2011.09.068 |
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