Ring-closing metathesis as a new methodology for the synthesis of monomeric flavonoids and neoflavonoids
作者:Bradley J. Miller、Tanya Pieterse、Charlene Marais、Barend C.B. Bezuidenhoudt
DOI:10.1016/j.tetlet.2012.06.094
日期:2012.8
Basic flavonoid (flavene) and neoflavonoid (neoflavene) skeletons were successfully synthesized using ring-closingmetathesis, showing that this methodology can be used as a central synthetic tool for the synthesis of at least two of the three basic flavonoid classes.
Heteroatom-Guided, Palladium-Catalyzed, Site-Selective CH Arylation of 4<i>H</i>-Chromenes: Diastereoselective Assembly of the Core Structure of Myristinin B through Dual CH Functionalization
palladium‐catalyzed direct arylation of 4H‐chromenes is reported. The CHfunctionalization is driven not only by the substituents and structure of the substrate but also by the coupling partner being used. The diastereoselectiveassembly of the corestructure of MyristininB has been achieved by using a dualCHfunctionalization strategy for regioselective direct arylation.