Palladium-catalyzed enantioselective [5 + 4] annulation of ortho-quinone methides and vinylethylene carbonates
Literature Information
Chao Xia, Dong-Chao Wang, Gui-Rong Qu
Highly enantioselective [5 + 4] annulation of ortho-quinone methides with vinylethylene carbonates has been developed by asymmetric palladium catalysis. The reaction allows for efficient synthesis of various nine-membered benzodioxonines in good yields (up to 88%) with high enantioselectivity (up to 98%). Mechanistic studies indicate that the [5 + 4] annulation occurs through an unusual action of chiral phosphine and achiral palladium catalysts.
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Organic Chemistry Frontiers publishes high-quality research from across organic chemistry. Emphases are placed on studies that make significant contributions to the field of organic chemistry by reporting either new or significantly improved protocols or methodologies. Topics include, but are not limited to the following: Organic synthesis Development of synthetic methodologies Catalysis Natural products Functional organic materials Supramolecular and macromolecular chemistry Physical and computational organic chemistry














