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Chin. J. Org. Chem. ›› 2007, Vol. 27 ›› Issue (02): 222-227. Previous Articles     Next Articles

Original Articles

高活性氨基胍树脂负载Pd(0)配合物的催化性能研究

杨元法*，卢茂玲，曾朝霞，刘卫东 周凤羽，罗孟飞   

  1. (浙江师范大学物理化学研究所 浙江省固体表面反应化学重点实验室 金华 321004)
  • 收稿日期:2006-05-29 修回日期:2006-07-24 发布日期:2007-01-30
  • 通讯作者: 杨元法

Catalytic Characteristics of Highly Active Amino-guanidine-resin Supported Pd(0) Complex

YANG Yuan-Fa*, LU Mao-Ling, ZENG Zhao-Xia, LIU Wei-Dong
ZHOU Feng-Yu, LUO Meng-Fei   

  1. (Institute of Physical Chemistry, Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces,
    Zhejiang Normal University, Jinhua 321004)
  • Received:2006-05-29 Revised:2006-07-24 Published:2007-01-30
  • Contact: YANG Yuan-Fa

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Amino-guanidine-resin supported Pd(0) was prepared by the reaction of amino-guanidine modified chloromethyl polystyrene resin with PdCl2, followed by reduction. The catalyst was characterized by FT-IR, XRD, BET, TG-DTA. The catalytic performance for the Heck reactions of various substituted aryl halides with acrylic acid or styrene was studied. Experiments indicated that the catalyst had excellent activity and recycling. Aryl bromides with electron-withdrawing were converted completely within very short time (140 ℃, 22 min). At 90 ℃ in the reaction of iodo-benzene with acrylic acid, the catalyst could kept high activity at 21th run. The study on mechanism disclosed that the reaction was homogeneous catalytic reaction, and the palladium leaching was caused by the interaction of iodo-benzene with the metal Pd(0) on supported.

Key words: Heck reaction, heterogeneous catalysis, supported Pd(0) catalyst