Construction of N–C Axial Chirality through Atroposelective C–H Olefination of <i>N</i>-Arylindoles by Palladium/Amino Acid Cooperative Catalysis
作者:Jitan Zhang、Qiaoqiao Xu、Jiaping Wu、Jian Fan、Meihua Xie
DOI:10.1021/acs.orglett.9b02243
日期:2019.8.16
Direct construction of N–C axial chirality via Pd-catalyzed atroposelective C–H olefination of N-arylindoles is reported. The crucial role of chiral amino acid as a cocatalyst in the regio- and stereocontrol has been disclosed. In this reaction, a wide range of arylindoles and functional alkenes could be well tolerated. Moreover, the practicality and synthetic value of this process were demonstrated
据报道,通过Pd催化的N-芳基吲哚的对映体选择性CH烯化反应,可以直接构建Nc轴向手性。已经公开了手性氨基酸在区域和立体控制中作为助催化剂的关键作用。在该反应中,可以很好地耐受各种芳基吲哚和官能烯烃。而且,该方法的实用性和综合价值通过产品的多样化者和简单的改造得到了证明。