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Intramolecular [2+2] Photocycloaddition of Cyclic Enones: Selectivity Control by Lewis Acids and Mechanistic Implications

The intramolecular [2+2] photocycloaddition of 3‐alkenyl‐2‐cycloalkenones was performed in an enantioselective fashion (nine representative examples, 54–86 % yield, 76–96 % ee) upon irradiation at λ=366 nm in the presence of an AlBr(3)‐activated oxazaborolidine as the Lewis acid. An extensive screen...

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Detalles Bibliográficos
Autores principales:	Poplata, Saner, Bauer, Andreas, Storch, Golo, Bach, Thorsten
Formato:	Online Artículo Texto
Lenguaje:	English
Publicado:	John Wiley and Sons Inc. 2019
Materias:	Full Papers
Acceso en línea:	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6618137/ https://www.ncbi.nlm.nih.gov/pubmed/30983074 http://dx.doi.org/10.1002/chem.201901304

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