Chin. J. Org. Chem. ›› 2015, Vol. 35 ›› Issue (8): 1707-1714.DOI: 10.6023/cjoc201501042 Previous Articles     Next Articles



高翯a, 王瀚旸a, 黄章杰a, 姚丽萍b, 彭进松a, 陈春霞a   

  1. a 东北林业大学理学院 化学化工系 哈尔滨 150040;
    b 森林植物生态学教育部重点实验室 东北林业大学 哈尔滨 150040
  • 收稿日期:2015-01-29 修回日期:2015-03-14 发布日期:2015-04-17
  • 通讯作者: 陈春霞
  • 基金资助:

    中央高校基本科研业务费专项基金(No. 2572014DB04), 国家自然科学基金(Nos. 31300286; 31400294)资助项目.

Copper-Catalyzed Aerobic Oxidation of 2-Arylmethyl Benzimidazoles

Gao Hea, Wang Hanyanga, Huang Zhangjiea, Yao Lipingb, Peng Jinsonga, Chen Chunxiaa   

  1. a Department of Chemistry and Chemical Engineering, College of Science, Northeast Forestry University, Harbin 150040;
    b Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040
  • Received:2015-01-29 Revised:2015-03-14 Published:2015-04-17
  • Supported by:

    Project supported by the Fundamental Research Funds for the Central Universities (No. 2572014DB04) and the National Natural Science Foundation of China (Nos. 31300286, 31400294).

Copper-catalyzed aerobic oxidation of 2-arylmethylidene-1H-benzo[d]imidazoles under air and basic conditions was examined in detail. With copper acetate as the catalyst and sodium hydroxide as the base in DMF at 120 ℃ for 24 h, the reaction afforded the corresponding ketones via oxidation of benzylic C—H bond in good yields. Various 2-aryloyl-1H-benzimidazole derivatives were synthesized by the above method, and the structure was characterized by 1H NMR and 13C NMR.

Key words: copper-catalyzed, benzimidazoles, oxygen, oxidation, C—H bond activation