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