Chin. J. Org. Chem. ›› 2017, Vol. 37 ›› Issue (9): 2336-2342.DOI: 10.6023/cjoc201703004 Previous Articles     Next Articles



吴玉芹, 于凉云, 张奇, 李立冬   

  1. 盐城工学院化学化工学院 盐城 224051
  • 收稿日期:2017-03-02 修回日期:2017-03-30 发布日期:2017-05-10
  • 通讯作者: 李立冬
  • 基金资助:


Synthesis of Dihydrophenanthridines by Palladium-Catalyzed[2+2+2] Cyclization Reactions

Wu Yuqin, Yu Liangyun, Zhang Qi, Li Lidong   

  1. School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051
  • Received:2017-03-02 Revised:2017-03-30 Published:2017-05-10
  • Contact: 10.6023/cjoc201703004
  • Supported by:

    Project supported by the National Natural Science Foundation of China (No. 21272005).

Phenanthridines are important core structures found in a variety of natural products and other biologically important molecules with a wide range of biological activities and applications, including antibacterial and anticancer agents. A practical and efficient domino method for the preparation of dihydrophenanthridines from diynes and aryl halides is developed via palladium-catalyzed[2+2+2] cycloaddition reactions. All new products were fully characterized by IR, 1H NMR, 13C NMR and high-resolution mass spectrometry. The molecular structure of 1-(7,12-diphenyl-5-tosyl-5,6-dihydrobenzo[j]-phenanthridin-10-yl)ethan-1-one (3b) was confirmed by using single-crystal X-ray analyses.

Key words: palladium-catalyzed, synthesis, C-C coupling, dihydrophenanthridine