Copper-Catalyzed Enantioselective Synthesis of β-Amino Alcohols Featuring Tetrasubstituted Tertiary Carbons
作者:Lan Tian、Liang Gong、Xia Zhang
DOI:10.1002/adsc.201701613
日期:2018.5.16
Here we report a copper‐catalyzed asymmetric propargylic substitution reaction to prepare tetrasubstituted β‐amino‐β‐ethynyl alcohols in high yields and with enantiomeric ratio (er) up to 94:6. This transformation generates tetrasubstituted tertiary carbons by utilizing stable cyclic carbonates and amines as substrates, economical copper catalysts, and easily accessible ligands.
在这里我们报道了铜催化的不对称炔丙基取代反应,可高产率地制备对映体比率(er)高达94:6的四取代的β-氨基-β-乙炔醇。通过使用稳定的环状碳酸酯和胺作为底物,经济的铜催化剂和易于获得的配体,该转化产生了四取代的叔碳。