Regio and Enantioselective Organocatalytic Friedel–Crafts Alkylation of 4-Aminoindoles at the C7-Position
作者:Wen Xun、Bo Xu、Bo Chen、Shanshui Meng、Albert S. C. Chan、Fayang G. Qiu、Junling Zhao
DOI:10.1021/acs.orglett.7b03703
日期:2018.2.2
acid catalyzed highly regio- and enantioselective Friedel–Crafts alkylation at the indole C7-position was developed via the introduction of an alkylamine moiety at the C4-position of the indole ring. The methodology is applicable to a wide range of 4-aminoindoles and β,γ-unsaturated α-ketimino esters to furnish the corresponding C7-position functionalized chiral indole derivatives in high yields with