作者:Tang, Qiang、Liu, Yanan、Fei, BinBin、Tao, Qianqian、Wang, Chen、Jiang, Xiaochun、He, Xinwei、Shang, Yongjia
DOI:10.1021/acs.joc.4c00239
日期:——
An elegant and highly concise strategy for the construction of coumarin-functionalized pyrrolo[2,1-a]isoquinolines from available propargylamines and isoquinolinium N-ylides has been disclosed. In this reaction, isoquinolinium N-ylides acted as a C2 synthon to form a coumarin ring as well as a 1,3-dipole to construct a pyrrole ring in a single pot. This cascade process involves 1,4-conjugate addition/lactonization/1
已经公开了一种优雅且高度简洁的策略,用于从可用的炔丙胺和异喹啉鎓N-叶立德构建香豆素官能化的吡咯并[2,1- a ]异喹啉。在此反应中,异喹啉鎓N-叶立德充当C2合成子以形成香豆素环以及1,3-偶极子以在单锅中构建吡咯环。该级联过程涉及 1,4-共轭加成/内酯化/1,3-偶极环加成,以构建四个化学键(一个 C-O 键和三个 C-C 键)和两个新的杂环骨架。此外,大多数这些化合物表现出良好的荧光性质,并表现出高摩尔消光系数和大斯托克斯位移。