Chin. J. Org. Chem. ›› 2006, Vol. 26 ›› Issue (02): 215-218. Previous Articles     Next Articles

Original Articles

聚-ω-(甲硒基)十一烷基硅氧烷钯(0)配合物的合成与催化性能

刘刚1,2,章荣立1,*,1   

  1. (1江西师范大学化学化工学院 南昌 330027)
    (2江西科技师范学院化学系 南昌 330013)
  • 收稿日期:2005-03-24 修回日期:2005-08-26 发布日期:2006-01-21
  • 通讯作者: 蔡明中

Synthesis and Catalytic Characteristics of a Silica-Supported Poly-ω-(methylseleno)undecylsiloxane Palladium(0) Complex

LIU Gang1,2,ZHANG Rong-Li1,CAI Ming-Zhong*,1   

  1. (1 School of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330027)
    (2 Department of Chemistry, Jiangxi Teaching College of Science and Tech-nology, Nanchang 330013)
  • Received:2005-03-24 Revised:2005-08-26 Published:2006-01-21
  • Contact: CAI Ming-Zhong

A simple and practical synthetic method for the cinnamonitriles and cinnamic acids was presented. A silica-supported poly-ω-(methylseleno)undecylsiloxane palladium(0) complex has been prepared from ω-chloroundecyltriethoxysilane via immobilization on fumed silica, followed by reaction with sodium methylselenolate in ethanol and palladium chloride in acetone, and then reduction with hydrazine hydrate in ethanol. The title complex was a highly active and stereoselective catalyst for arylation of acry-lonitrile and acrylic acid with aryl iodides, and could be recovered and reused.

Key words: Heck arylation, cinnamic acid, cinnamonitrile, stereoselective synthesis, selenide palladium(0) complex, supported palladium catalyst