Rh-Catalyzed C–H Amination/Annulation of Acrylic Acids and Anthranils by Using −COOH as a Deciduous Directing Group: An Access to Diverse Quinolines
作者:Yang Gao、Jianhong Nie、Yibiao Li、Xianwei Li、Qian Chen、Yanping Huo、Xiao-Qiang Hu
DOI:10.1021/acs.orglett.0c00539
日期:2020.4.3
A method for the synthesis of diverse polysubstituted quinolines from readily available acrylic acids and anthranils has been developed. The weakly coordinating –COOH directing group, which can be tracelessly removed in the cascade cyclization, is essential for this reaction. Diverse polysubstituted quinolines were obtained under mild reaction conditions with simple H2O and CO2 as byproducts. More
已经开发了一种由容易获得的丙烯酸和蒽基合成各种多取代喹啉的方法。弱配位的–COOH导向基团对于该反应至关重要,可以在级联环化中将其无痕除去。在温和的反应条件下,以简单的H 2 O和CO 2为副产物获得了多种多取代的喹啉。更重要的是,方便地合成了他克林(一种阿尔茨海默氏病药物)的核心骨架1,2,3,4-四氢ac啶。