Mild Rhodium(III)-Catalyzed Cyclization of Amides with α,β-Unsaturated Aldehydes and Ketones to Azepinones: Application to the Synthesis of the Homoprotoberberine Framework
作者:Zhuangzhi Shi、Christoph Grohmann、Frank Glorius
DOI:10.1002/anie.201301426
日期:2013.5.10
Seven! The title reaction can be described as an intermolecular annulation involving tandemCHactivation, cyclization to give the seven‐membered ring, and condensation steps. Biologically interesting azepinone derivatives can be prepared in this way. The synthetic potential of this method was demonstrated by the construction of the homoprotoberberine ring system.