Highly diastereo- and enantioselective Mannich reaction of lactones with N-Boc-aldimines catalyzed by bifunctional rosin-derived amine thiourea catalysts
作者:Xianxing Jiang、Dan Fu、Gen Zhang、Yiming Cao、Luping Liu、Jingjing Song、Rui Wang
DOI:10.1039/c000621a
日期:——
A highly efficient diastereo- and enantioselective Mannich reaction of lactones with a variety of N-Boc-aldimines by using bifunctional rosin-derived amine thiourea catalysts was investigated for the first time, in general, affording the adducts bearing quaternary stereogenic centers with high levels of enantio- and diastereoselectivity (up to 99% ee, and >20:1 dr).
首次研究了使用双官能松香衍生的胺硫脲催化剂对内酯与各种N-Boc-醛亚胺进行的高效非对映和对映选择性曼尼希反应,通常可得到带有高四级立体构型中心的季铵立体异构中心的加合物。对映体和非对映体选择性(高达99%ee,并且> 20:1 dr)。