Journal of the American Chemical Society, Vol.139, No.44, 15656-15659, 2017
Synthesis of (+)-Pancratistatins via Catalytic Desymmetrization of Benzene
A concise synthesis of (+)-pancratistatin and (+)-7-deoxypancratistatin from benzene using an enantioselective, dearomative tarboarnination strategy has been achieved. This approach, in combination with the judicious choice of subsequent olefin-type difunctionalization reactions, permits rapid and controlled access to a hexasubstituted core. Finally, minimal use of intermediary steps as well as direct, late stage C-7 hydroxylation provides both natural products in six and seven operations.