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Acta Chimica Sinica ›› 2006, Vol. 64 ›› Issue (1): 42-46. Previous Articles     Next Articles

氮配位的无磷聚合物负载钯配合物对Suzuki反应的催化性能

崔元臣*,1，赵晓伟1，张纪伟2，张磊1，刘新明1   

  1. (1河南大学化学化工学院 2特种功能材料重点实验室 开封 475001)
  • 投稿日期:2005-05-08 修回日期:2005-09-16 发布日期:2006-01-14
  • 通讯作者: 崔元臣

Catalytic Property of Nitrogen-donor Phosphine-free Pd Complex Supported by Polymer in Suzuki Reaction

CUI Yuan-Chen*,1, ZHAO Xiao-Wei1, ZHANG Ji-Wei2, ZHANG Lei1, LIU Xin-Ming1   

  1. (1 College of Chemistry and Chemical Engineering, Henan University,
    2 Laboratory of Special Functional Materials, Kaifeng 475001)
  • Received:2005-05-08 Revised:2005-09-16 Published:2006-01-14
  • Contact: CUI Yuan-Chen

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Nitrogen-donor polyvinyl chloride diethylene triamine palladium complex (PVC-DETA-Pd), the structure of which is simple and does not contain phosphine, was prepared, and the complex was characterized by XPS, TG, DTA, TEM, etc. Such PVC-DETA-Pd has good thermal stability from room temperature to 220 ℃. TEM confirmed that Pd particles are spherical and have uniform distribution with the size of about 15 nm. Then the catalytic property of the complex in Suzuki reaction and the property of recycle and reuse were determined under different temperature, time, solvent and the substrates. The results show that in the presence of NaHCO3 as base and DMF-H2O (volume ratio 2∶1) as solvent, the complex could catalyze not only iodobenzene but also non-activated bromobenzene quantitatively at 90 ℃ without the inert gas protection, and furthermore the catalyst could be recovered and reused more than eight times.

Key words: Suzuki reaction, polyvinyl chloride diethylene triamine palladium, catalysis, phosphine-free, support