Highly Enantioselective Alkylation Reaction of Enamides by Brønsted-Acid Catalysis
作者:Qi-Xiang Guo、Yun-Gui Peng、Jin-Wei Zhang、Liu Song、Zhang Feng、Liu-Zhu Gong
DOI:10.1021/ol901892s
日期:2009.10.15
The H-8-BINOL-derived, phosphoric acid catalyzed, highly enatioselective alkylation reaction of enamides with indolyl alcohols has been described. A phosphoric acid derived from H8-BINOL enabled an asymmetric alpha-alkylation of enamides with indolyl alcohols to give beta-aryl 3-(3-indolyl)propanones in high yields (up to 96%) and with excellent enantioselectivity (up to 96% ee).