Rhodium-Catalyzed Dynamic Kinetic Asymmetric Transformations of Racemic Tertiary Allylic Trichloroacetimidates with Anilines
作者:Jeffrey S. Arnold、Hien M. Nguyen
DOI:10.1021/ja302223p
日期:2012.5.23
enantioselective amination of racemic tertiary allylic trichloroacetimidates with a variety of aniline nucleophiles is a direct and efficient route to chiral α,α-disubstituted allylic N-arylamines. We describe the first dynamic kinetic asymmetric transformations of racemic tertiary allylic electrophiles with anilines utilizing a chiral diene-ligated rhodium catalyst. The method allows for the formation of
外消旋叔烯丙基三氯乙酰亚胺酯与各种苯胺亲核试剂的铑催化区域选择性和对映选择性胺化是制备手性 α,α-二取代烯丙基 N-芳胺的直接有效途径。我们描述了外消旋叔烯丙基亲电试剂与苯胺利用手性二烯连接的铑催化剂的第一次动态动力学不对称转化。该方法允许以中等至良好的产率形成 α,α-二取代的烯丙基 N-芳基胺,并具有良好至极好的区域选择性和对映选择性。