Regio- and Diastereoselective Three-Component Reactions via Trapping of Ammonium Ylides with <i>N</i>-Alkylquinolinium Salts: Synthesis of Multisubstituted Tetra- and Dihydroquinoline Derivatives
作者:Zhenghui Kang、Dan Zhang、Wenhao Hu
DOI:10.1021/acs.orglett.7b01664
日期:2017.7.21
Pd(II)-catalyzed three-component reactions via trapping of ammonium ylides with N-alkylquinolinium salts are reported. These reactions provided polyfunctional polycyclic tetrahydroquinolines or 4-substituted 1,4-dihydroquinolines in excellent yields (89–99% and 89–98%, respectively) with high regioselectivities and moderate to good diastereoselectivities (up to 95:5 dr) under mild reaction conditions
据报道,Pd(II)催化的三组分反应是通过用N-烷基喹啉鎓盐捕集铵化铵来实现的。这些反应在温和的反应下,以优异的产率(分别为89–99%和89–98%)提供了具有高区域选择性和中等至良好的非对映选择性(高达95:5 dr)的多官能多环四氢喹啉或4-取代的1,4-二氢喹啉。条件。