Chinese Journal of Catalysis ›› 2016, Vol. 37 ›› Issue (8): 1216-1221.DOI: 10.1016/S1872-2067(16)62503-2

• Communications • Previous Articles     Next Articles

Direct oxidation of the Csp3-H bonds of N-heterocyclic compounds to give the corresponding ketones using a reusable heterogeneous MnOx-N@C catalyst

Lanhui Rena,b, Lianyue Wangb, Ying Lüb, Guosong Lib, Shuang Gaob   

  1. a. College of Chemistry, Dalian University of Technology, Dalian 116024, Liaoning, China;
    b. Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China
  • Received:2016-06-03 Revised:2016-06-22 Online:2016-07-29 Published:2016-08-01
  • Contact: Shuang Gao
  • Supported by:

    This work was supported by the National Basic research Program of China (973 Program, 2009CB623505) and the National Natural Science Foundation of China (21273225).

Abstract:

Novel reusable MnOx-N@C catalyst has been developed for the direct oxidation of N-heterocycles under solvent-free conditions using TBHP as benign oxidant to give the corresponding N-heterocyclic ketones. The catalytic system exhibited a broad substrate scope and excellent regioselectivity, as well as being amenable to gram-scale synthesis. This MnOx-N@C catalyst also showed good reusability and was successfully recycled six times without any significant loss of activity.

Key words: Oxidation, Heterogeneous catalyst, Ketone, C-H bond, Manganese