Chiral Phosphoric Acid Catalyzed Enantioselective Decarboxylative Alkylation of β-Keto Acids with 3-Hydroxy-3-indolyloxindoles
作者:Xiao-Dong Tang、Shen Li、Ran Guo、Jing Nie、Jun-An Ma
DOI:10.1021/acs.orglett.5b00159
日期:2015.3.20
A chiral phosphoric acid catalyzed enantioselectivedecarboxylative alkylation of β-ketoacids with 3-hydroxy-3-indolyloxindoles is described in this context. This method tolerates a series of aromatic and aliphatic β-ketoacids as well as substituted 3-hydroxy-3-indolyloxindoles, affording the corresponding chiral 3-functionalized 3-indolyloxindoles in high yields (up to 98%) and enantioselectivities
Core-Structure-Oriented Asymmetric Organocatalytic Substitution of 3-Hydroxyoxindoles: Application in the Enantioselective Total Synthesis of (+)-Folicanthine
作者:Chang Guo、Jin Song、Jian-Zhou Huang、Peng-Hao Chen、Shi-Wei Luo、Liu-Zhu Gong
DOI:10.1002/anie.201107079
日期:2012.1.23
yield and excellent enantioselectivity. This reaction enabled the enantioselective construction of hexahydropyrroloindole skeletons and the first catalytic enantioselective total synthesis of (+)‐folicanthine.