C<sub>1</sub>-Symmetric Aminosulfoximines as Ligands in Copper-Catalyzed Carbonyl-Ene Reactions
作者:Carsten Bolm、Martin Langner、Pauline Rémy
DOI:10.1055/s-2005-863737
日期:——
Highly modular C 1 -symmetric aminosulfoximines were prepared and applied as chiral ligands in copper-catalyzed enantioselective carbonyl-ene reactions. The optimized system catalyzed the conversion of pyruvates and 1,1-disubstituted olefins yielding the corresponding hydroxy esters with high enantiomeric excesses (up to 91% ee) in moderate yields.
高度模块化的 C 1 -对称氨基亚砜亚胺被制备并用作铜催化的对映选择性羰基-烯反应中的手性配体。优化的系统催化丙酮酸和 1,1-二取代烯烃的转化,以中等产率产生具有高对映体过量(高达 91% ee)的相应羟基酯。