Asymmetric Gold(I)‐Catalyzed Tandem Hydroarylation–Nazarov Cyclization: Enantioselective Access to Cyclopentenones
Marta Solas, Samuel Suárez‐Pantiga, Roberto Sanz
Abstract
The asymmetric synthesis of cyclopentachromenones from gold-catalyzed reaction of readily available skipped alkenynones is described. This cascade reaction involves an initial anti-Michael hydroarylation of the ynone moiety to form a gold-functionalized dialkenylketone intermediate, followed by a Nazarov cyclization that proceeds in an unprecedented enantioselective manner. Excellent enantiomeric ratios and chemical yields are obtained under mild reaction conditions.
Topics & Concepts
Enantioselective synthesisMoietyTandemCascade reactionChemistryEnantiomerCatalysisCombinatorial chemistryCascadeStereochemistryOrganic chemistryMaterials scienceChromatographyComposite materialCatalytic Alkyne ReactionsSynthetic Organic Chemistry MethodsTraditional and Medicinal Uses of Annonaceae