Asymmetric synthesis of β-substituted alcanoic acids via highly stereoselective conjugate additions of organocopper compounds to chiral enoates
作者:Günter Helmchen、Günter Wegner
DOI:10.1016/s0040-4039(00)95122-0
日期:1985.1
Conjugateadditions of organocopper compounds RCu·.BF3 to encates of sulfonamide-shielded alcohols 1x and 1n quite generally proceed with > 99% ee and > 90% yield.