Highly Regioselective Palladium-Catalyzed Oxidative Coupling of Indolizines and Vinylarenes via C−H Bond Cleavage
作者:Yuzhu Yang、Kai Cheng、Yuhong Zhang
DOI:10.1021/ol902315w
日期:2009.12.17
A highly regioselectiveoxidative coupling reaction between indolizines and vinylarenes has been accomplished in the presence of palladium catalysts to give only the branched α-product in high efficiency. The regioselectivity is promoted significantly by bidentate nitrogen ligands.
Palladium-Catalyzed Oxidative C−H Bond and C═C Double Bond Cleavage: C-3 Acylation of Indolizines with α,β-Unsaturated Carboxylic Acids
作者:Yuzhu Yang、Li Chen、Zhaoguo Zhang、Yuhong Zhang
DOI:10.1021/ol200025k
日期:2011.3.18
A novel palladium-catalyzed C-3 acylation of indolizines with α,β-unsaturated carboxylic acids via C−H bond and C═C double bond cleavage under oxidative conditions is described. The regioselectivity is assisted by the carboxylic group, and the selection of the oxidant is crucial to the reaction.