有机化学 ›› 2020, Vol. 40 ›› Issue (4): 950-958.DOI: 10.6023/cjoc201909040 上一篇    下一篇

研究论文

钯催化双芳基化反应合成咔唑醌衍生物的研究

李雪a,b, 宋子锐a, 陈鑫a,b, 蔡轶超a, 刘雅婕a, 陈春霞a,b, 彭进松a   

  1. a 东北林业大学 化学化工与资源利用学院 哈尔滨 150040;
    b 东北林业大学 材料科学与工程学院 哈尔滨 150040
  • 收稿日期:2019-09-28 修回日期:2019-11-28 发布日期:2019-12-19
  • 通讯作者: 陈春霞, 彭进松 E-mail:ccx0109@nefu.edu.cn;jspeng1998@nefu.edu.cn
  • 基金资助:
    中央高校基本科研业务费专项资金(No.2572017AB25)和大学生创新训练(No.201810225098)资助项目.

Synthesis of Carbazolequinones by Pd-Catalyzed Double Arylation Process

Li Xuea,b, Song Ziruia, Chen Xina,b, Cai Yichaoa, Liu Yajiea, Chen Chunxiaa,b, Peng Jinsonga   

  1. a College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin 150040;
    b Material Science and Engineering College, Northeast Forestry University, Harbin 150040
  • Received:2019-09-28 Revised:2019-11-28 Published:2019-12-19
  • Supported by:
    Received September 28, 2019; revised November 28, 2019; published online December 19, 2019. Project supported by the Fundamental Research Funds for the Central Universities (No. 2572017AB25) and the National Innovation Experiment Program for University Students (No. 201810225098).

以2-氨基萘醌和邻二溴苯为起始原料,详细探讨了钯催化"一瓶法"合成咔唑醌类化合物的方法.研究结果表明,以氯化钯为催化剂、2-二环己基膦-2,4,6-三异丙基联苯为配体、碳酸钾为碱、N,N-二甲基甲酰胺为溶剂,于160℃下反应72 h获得81%产率的N—H/C—H双芳基化串联反应产物.在此标准条件下,通过改变邻二卤代芳烃的结构,研究了该合成方法的适用范围与局限性,合成得到的系列咔唑醌衍生物经1H NMR和13C NMR结构表征.

关键词: 钯催化, 咔唑醌, 胺化, 芳基化, 串联反应

Starting from 2-aminonaphthalene-1,4-dione and o-dibromoarene, palladium-catalyzed one-pot synthesis of carbazolequinone was examined in detail. With PdCl2 as the catalyst, 2-dicyclohexylphosphino-2',4',6'-triisopropylbiphenyl (Xphos) as ligand and K2CO3 as base in N,N-dimethylformamide (DMF) at 160℃ for 72 h, the annulation reaction afforded the corresponding product by N-H/C-H double arylation process in 81% yield. With different o-dihaloarenes, a series of carbazolequinone derivatives were synthesized to examine the scope and limitation of the above method, and the structure of products was characterized by 1H NMR and 13C NMR spectra.

Key words: palladium-catalyzed, carbazolequinones, amination, arylation, tandem reaction