Catalytic Enantioselective Reactions. Part 12. Enantioselective Addition of Diethylzinc to Aldehydes Catalyzed by Zinc Complexes Modified with Chiral β-Sulfonamidoalcohols
作者:Byung Tae Cho、Yu Sung Chun
DOI:10.1080/00397919908085795
日期:1999.2
Various new chiral beta-sulfonamidoalcohols were prepared. The zinc complexes modified by these chiral ligands alone without the use of titanium tetraisopropoxide are effective as chiral catalysts for the addition of diethylzinc to aldehydes to afford secondary alcohols with moderate enantioselectivity.