有机化学 ›› 2024, Vol. 44 ›› Issue (11): 3427-3436.DOI: 10.6023/cjoc202404005 上一篇    下一篇

研究论文

铜催化苯并呋喃并嘧啶并异吲哚衍生物的合成

何姮, 吕兰兰*(), 刘建全, 王香善*()   

  1. 江苏师范大学化学与材料科学学院 江苏徐州 221116
  • 收稿日期:2024-04-05 修回日期:2024-05-14 发布日期:2024-06-13
  • 基金资助:
    江苏省优秀青年基金(BK20211607); 江苏省高等学校重点学科建设计划资助项目

Copper-Catalyzed Synthesis of Benzofuropyrimidoisoindole Derivatives

Heng He, Lanlan Lü*(), Jianquan Liu, Xiangshan Wang*()   

  1. School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116
  • Received:2024-04-05 Revised:2024-05-14 Published:2024-06-13
  • Contact: *E-mail:lvll800@126.com;xswang@jsnu.edu.cn
  • Supported by:
    Outstanding Youth Fund of Jiangsu Province(BK20211607); Priority Academic Program Development of Jiangsu Higher Education Institutions.

2-(2-溴苯基)苯并呋喃并[3,2-d]嘧啶-4(3H)-酮与末端炔烃在CuI催化下, 首先进行Sonogashira偶联反应, 随后发生选择性的5-exo-dig炔氢胺化反应, 合成了一系列苯并呋喃并嘧啶并异吲哚衍生物. 反应具有效率高、底物范围广和优异的官能团兼容性等特点. 通过X射线单晶衍射分析, 产物呈现为单一的(E)-构型.

关键词: 苯并呋喃并嘧啶并异吲哚, Sonogashira偶联, 炔氢胺化反应, CuI

A copper-catalyzed Sonogashira coupling reaction and 5-exo-dig aminocyclization between 2-(2-bromophenyl)- benzofuro[3,2-d]pyrimidin-4(3H)-ones and terminal alkynes were disclosed. The protocol allowed access to a series of 8-benzylidene benzofuro[3',2':4,5]pyrimido[2,1-a]isoindol-6(8H)-one derivatives with high efficiency, broad substrate scope, and excellent functional group compatibility, which were shown to be of a single (E)-configuration by X-ray diffraction analysis.

Key words: benzofuropyrimidoisoindole, Sonogashira coupling, acetylene hydroamination, CuI