Chinese Journal of Organic Chemistry ›› 2020, Vol. 40 ›› Issue (7): 1991-1998.DOI: 10.6023/cjoc202003020 Previous Articles     Next Articles


李鹏帅, 乌云, 白朝鲁门, 包永胜   

  1. 内蒙古师范大学化学与环境科学学院 内蒙古绿色催化重点实验室 呼和浩特 010022
  • 收稿日期:2020-03-08 修回日期:2020-04-11 发布日期:2020-04-30
  • 通讯作者: 包永胜
  • 基金资助:

Insight into Catalytic Properties of Supported Palladium Nanoparticles Catalyzed ortho-Directed Sulfonylation

Li Pengshuai, Wu Yun, Bai Chaolumen, Bao Yongsheng   

  1. Inner Mongolia Key Laboratory of Green Catalysis, College of Chemistry and Environmental Science, Inner Mongolia Normal University, Hohhot 010022
  • Received:2020-03-08 Revised:2020-04-11 Published:2020-04-30
  • Supported by:
    Project supported by the National Natural Science Foundation of China (No. 21861030), and the Program for Young Talents of Science and Technology in Universities of Inner Mongolia Autonomous Region (No. NJYT-17-A22).

Catalyzed by supported palladium nanoparticles, an ortho-directed sulfonylation reaction between 2-phenylpyri-dine and arylsulfonyl chlorides has been developed. The full oxidation-state change of palladium was detected in the X-ray photoelectron spectroscopy (XPS) analysis of the supported palladium nanoparticles catalyst before and after reaction, which confirmed that Pd-catalyzed ortho-directed sulfonylation reaction was performed via a PdⅡ/IV catalytic cycle instead of Pd0/Ⅱ. The hot filtration test and other tests of catalysts further confirmed the hypothesis. This report afforded the most straightforward approach to confirm the variation of valence of palladium in ortho-directed sulfonylation reaction.

Key words: C-H functionalization, X-ray photoelectron spectroscopy (XPS) analysis, palladium nanoparticles catalyst, sulfonylation