Copper(I) Chloride Mediated Cyclization of Optically Active 2,3-Allenoic Acids or 1:1 Salts of Optically Active 2,3-Allenoic Acids with Chiral Amines
作者:Shengming Ma、Zhanqian Yu
DOI:10.1055/s-2006-950293
日期:2006.11
Copper(I) chloride mediated cyclization of opticallyactive 2,3-allenoic acids or 1:1 salts of opticallyactive 2,3-allenoic acids with chiral amines was developed. The reaction of opticallyactive 2,3-allenoic acids in methanol requires only a catalytic amount of copper(I) chloride, while the reaction of the 1:1 salts of opticallyactive 2,3-allenoic acids with chiral amines needs one equivalent of