Diastereoselective Povarov-Like Reaction Involving<i>O</i>-Pivaloylated<scp>D</scp>-Galactosylimine
作者:Gang Wang、Boyu Li、Qinghua Lou、Zhongjun Li、Xiangbao Meng
DOI:10.1002/adsc.201200761
日期:2013.1.9
A diastereoselective Povarov-like reaction using O-pivaloylated β-D-galactosylamine as the chiral auxiliary is described. The three-component reaction of chiral aldimines, cyclic enol ethers and nucleophiles afforded the desired products in good yields and high content of the main isomer. This procedure provides an efficient method to obtain multifunctional molecules carrying three contiguous chiral
描述了使用O-吡咯烷基化的β-D-半乳糖胺作为手性助剂的非对映选择性的Povarov样反应。手性醛亚胺,环状烯醇醚和亲核试剂的三组分反应以良好的收率和高的主要异构体含量提供了所需的产物。该程序提供了一种高效的方法,可以以高立体选择性获得带有三个连续手性中心的多功能分子。