Palladium-Catalyzed Allenylation/Intramolecular Diels-Alder Reaction of Furans with Propargyl Carboxylates for the Synthesis of Polycyclic Compounds
作者:Chengyu Wang、Lingkai Kong、Yanli Li、Yanzhong Li
DOI:10.1002/ejoc.201402059
日期:2014.6
A highly efficient palladium-catalyzed cascade reaction of propargyl carboxylates bearing a furanyl group with organoborons was developed. This methodology offers rapid access to polycyclicDiels–Alder cycloadducts in good to high yields. The thus-formed oxygen-bridged products were further converted into anthracene derivatives in a chemoselective manner under mild conditions.