Chem. J. Chinese Universities ›› 2024, Vol. 45 ›› Issue (8): 20240177.doi: 10.7503/cjcu20240177

• Review • Previous Articles     Next Articles

Research Progress on Catalytic Oxidative Coupling Reaction of Aniline with Green Oxidants

BAN Zhiyong1,2, YANG Caoyu2,3, FENG Qing2,3, YIN Guojun1(), LI Guodong2,3()   

  1. 1.College of Chemistry & Chemical Engineering,Yantai University,Yantai 264005,China
    2.CAS Key Laboratory of Nanosystem and Hierarchical Fabrication,CAS Center for Excellence in Nanoscience,National Center for Nanoscience and Technology,Beijing 100190,China
    3.School of Nanoscience and Engineering,University of Chinese Academy of Sciences,Beijing 100049,China
  • Received:2024-04-10 Online:2024-08-10 Published:2024-07-08
  • Contact: YIN Guojun, LI Guodong E-mail:gjyin@126.com;liguodong@nanoctr.cn
  • Supported by:
    the National Key Research and Development Program of China(2021YFA1500403);the Strategic Priority Research Program of Chinese Academy of Sciences(XDB36000000);the National Natural Science Foundation of China(52372079);the Youth Innovation Promotion Association CAS

Abstract:

Azobenzene and azoxybenzene compounds have exhibited broad application prospects in the fields of pigments, optical materials, fluorescent probes, and optoelectronic devices. Now many catalysts and oxidants have been developed for the oxidation coupling reaction of aniline to produce azobenzene and azoxybenzene compounds, and among them, developing the green, eco-friendly oxidation systems is still a hot but challenging issue in the current researches. Based on the above, this review summarizes the recent progress in catalyzing the selective oxidation of aniline to generate azobenzene and azoxybenzene compounds with the use of hydrogen peroxide and oxygen as oxidants, and meanwhile, discusses the possible mechanisms of aniline oxidation, mainly including nitrosobenzene intermediate mechanism and radical coupling mechanism. Finally, the potential problems and challenges in the synthesis of catalysts and the catalytic mechanisms have been summarized, and further researches have been prospected. This review will provide an important reference for the development of related fields.

Key words: Aniline, Selective oxidative coupling, Hydrogen peroxide, Oxygen, Azo compound

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