5 years ago

Application of Dehydroabietic Acid in Palladium-Catalysed Enyne Cycloisomerisation

Application of Dehydroabietic Acid in Palladium-Catalysed Enyne Cycloisomerisation
Yingming Pan, Ruikun Li, Na Wu, Feihu Cui
Dehydroabietic acid (DAA) promotes palladium(0)-catalysed cyclisations of arene-tethered 1,7-enynols and 1,m-enynoates (m=6,7) to give fused carbocyclic dienes. 6,6,6,5-Tetracyclic lactones are accessible by one-pot cycloisomerisation/Diels–Alder reaction/lactonisation from 1,7-enynols. Furthermore, asymmetric counteranion-directed catalysis has been developed, which afforded an indene derivative with an all-carbon quaternary stereogenic center.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/adsc.201700061

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