Copper(I)-Catalyzed Asymmetric Desymmetrization: Synthesis of Five-Membered-Ring Compounds Containing All-Carbon Quaternary Stereocenters
作者:Kohsuke Aikawa、Tatsuya Okamoto、Koichi Mikami
DOI:10.1021/ja3032345
日期:2012.6.27
A highly stereoselective catalytic alkylation sequence for the synthesis of highly functionalized and versatile five-membered-ring compounds bearing all-carbon quaternary stereocenters was developed. Enantioselective desymmetrization of achiral cyclopentene-1,3-diones was thus executed by chiral Cu-phosphoramidite catalysts. A variety of complicated cyclopentane derivatives can be synthesized with
开发了一种高度立体选择性催化烷基化序列,用于合成具有全碳四元立体中心的高度功能化和多功能的五元环化合物。因此,手性 Cu-亚磷酰胺催化剂实现了非手性环戊烯-1,3-二酮的对映选择性去对称化。可以在一锅操作中使用低催化剂负载量合成具有优异立体选择性的各种复杂的环戊烷衍生物。