Brønsted acid-catalyzed enantioselective Friedländer condensations: achiral amine promoter plays crucial role in the stereocontrol
作者:Lei Ren、Tao Lei、Liu-Zhu Gong
DOI:10.1039/c1cc14873g
日期:——
A highly enantioselective Friedländer condensation has been established by using chiral Brønsted acids in combination with achiral amines to give quinolines in high yields (up to 99%) and with excellent enantioselectivities (up to 95%).