Chiral Lewis Acid Catalysis in Aqueous Media. Catalytic Asymmetric Aldol Reactions of Silyl Enol Ethers with Aldehydes in a Protic Solvent Including Water
Chiral copper(II)-catalyzed asymmetric aldol reactions of silyl enol ethers with aldehydes have been successfully carried out in a water-ethanol solution. The use of the protic solvent including wa...
手性铜 (II) 催化的甲硅烷基烯醇醚与醛的不对称羟醛反应已在水-乙醇溶液中成功进行。使用质子溶剂包括水...
Enantioselective Direct Aldol-Tishchenko Reaction: Access to Chiral Stereopentads
作者:Kerstin Rohr、Robert Herre、Rainer Mahrwald
DOI:10.1021/ol0517675
日期:2005.9.1
The aldol-Tishchenko reaction of aromatic aldehydes in the presence of titanium(IV) tertbutoxide and amino alcohols is described. When used with cinchona alkaloids, stereopentads were isolated for the first time with a high degree of diastereo- and enantioselectivity.
MUKAIYAMA, TERUAKI;IWASAWA, NOBUHARU;STEVENS, R. W.;HAGA, TORU, TETRAHEDRON, 1984, 40, N 8, 1381-1390
作者:MUKAIYAMA, TERUAKI、IWASAWA, NOBUHARU、STEVENS, R. W.、HAGA, TORU