Chinese Journal of Catalysis ›› 2012, Vol. 33 ›› Issue (12): 1877-1882.DOI: 10.1016/S1872-2067(11)60458-0

• Research papers • Previous Articles     Next Articles

Montmorillonite-Supported Copper(I) for Catalyzing N-Arylation of Nitrogen Heterocycles

QI Xiaolong1, ZHOU Limei1,a, JIANG Xiaohui1,b, FAN Hongwei1, FU Haiyan2, CHEN Hua2   

  1. 1Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong 637002, Sichuan, China; 2 Institute of Homogeneous Catalysis, College of Chemistry, Sichuan University, Chengdu 610064, Sichuan, China
  • Received:2012-08-20 Revised:2012-09-17 Online:2013-01-18 Published:2012-12-18

Abstract: Montmorillonite-supported copper (I) catalyst has been prepared by a simple ion exchange method. The resulting catalyst was characterized by X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, and energy dispersive X-ray spectrometry, with results showing that Cu+ had been successfully intercalated into the interlayer of Montmorillonite. The catalyst showed high levels of activity towards the N-arylation of nitrogen heterocycles with aryl chlorides or bromides. Furthermore, the catalyst could be reused up to four times without any significant loss in activity.

Key words: copper, montmorillonite, N-arylation reaction, aryl halides, heterogeneous catalyst