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Acta Chimica Sinica ›› 2006, Vol. 64 ›› Issue (16): 1749-1751. Previous Articles     Next Articles

Reports

Pd(OAc)2/Cu(OTf)2在离子液体BMImPF6中催化苯乙烯二聚反应的研究

彭家建, 厉嘉云, 邱化玉, 蒋剑雄, 蒋可志, 来国桥*   

  1. (杭州师范学院有机硅化学及材料技术教育部重点实验室 杭州 310012)
  • 投稿日期:2005-12-22 修回日期:2006-03-20 发布日期:2006-08-28
  • 通讯作者: 来国桥

Study on the Dimerization of Styrene Catalyzed with Pd(OAc)2/Cu(OTf)2 System in Ionic Liquid BMImPF6

PENG Jia-Jian; LI Jia-Yun; QIU Hua-Yu; JIANG Jian-Xiong; JIANG Ke-Zhi; LAI Guo-Qiao*   

  1. (Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Teachers College, Hangzhou 310012)
  • Received:2005-12-22 Revised:2006-03-20 Published:2006-08-28
  • Contact: LAI Guo-Qiao

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Dimerization of styrene was co-catalyzed with the different palladium complexes and Cu(OTf)2 in ionic liquid BMImPF6, in which Pd(OAc)2/Cu(OTf)2 was found the best catalyst system. When molar ratio of Pd(OAc)2/Cu(OTf)2 was 1/1～4/1, both high catalytic activity and selectivity were obtained. The Pd(OAc)2/Cu(OTf)2 catalyst system has excellent solubility in ionic liquid BMImPF6, and can be easily separated from the product. The results of dimeri-zation of α-methylstyrene indicate that no products were detected at room temperature and it is bene-fieial to the reaction to raise temperature.

Key words: dimerization of styrene, room temperature ionic liquid, Pd(OAc)2/Cu(OTf)2 catalyst