The total syntheses
of basiliolide C and previously unreported
epi-basiliolide C are achieved by an Ireland–Claisen/Diels–Alder
cascade. The development of a palladium catalyzed cross-coupling of
methoxy alkynyl zinc reagents allows for the protecting-group-free
syntheses of transtaganolides C and D. Syntheses of transtaganolides
C and D are accomplished in a single operation to generate three rings,
two all-carbon quaternary centers, and four tertiary stereocenters
from a monocyclic, achiral precursor.
Zügige enantioselektive Totalsynthesen der Transtaganolide A–D gelingen mithilfe einer hoch diastereoselektiven Ireland‐Claisen/Diels‐Alder‐Reaktionskaskade ausgehend von einem enantiomerenangereicherten Geraniolderivat (siehe Schema). Auf der Grundlage von Röntgen‐Beugungsdaten wurde die absolute Konfiguration dieser Metabolite ermittelt und im Zusammenhang mit bestehenden Biosynthesemodellen diskutiert.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.