有机化学 ›› 2005, Vol. 25 ›› Issue (06): 665-668. 上一篇    下一篇

研究论文

二氧化硅负载胂钯(0)配合物催化酰氯和芳基碘与四苯硼化钠的苯基化反应

蔡明中*,胡文英   

  1. (江西师范大学化学化工学院 南昌 330027)
  • 收稿日期:2004-09-06 修回日期:2004-12-10 发布日期:2005-05-30
  • 通讯作者: 蔡明中

Silica-supported Arsine Palladium(0) Complex Catalyzed Phenylation of Acid Chlorides and Aryl Iodides by Sodium Tetraphenylborate

CAI Ming-Zhong*,HU Wen-Ying   

  1. (School of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330027)
  • Received:2004-09-06 Revised:2004-12-10 Published:2005-05-30
  • Contact: CAI Ming-Zhong

氯丙基三乙氧基硅烷依次与气相法二氧化硅、二苯胂钾、氯化钯作用, 再用水合肼还原, 合成了二氧化硅负载的胂钯(0)配合物. 该配合物是酰氯及芳基碘化物与四苯硼化钠苯基化反应的有效催化剂, 为苯基酮及不对称联苯的合成提供了简便且实用的新方法.

关键词: 聚合物钯催化剂, 联苯, 胂钯(0)配合物, 四苯硼化钠, 苯基酮

A silica-supported arsine palladium(0) complex has been prepared from γ-chloropropyltriethoxysilane via immobilization on fumed silica, followed by reaction with potassium diphenylarsenide and palladium chloride, and then reduction with hydrazine hydrate. The complex exhibited good activity in phenylation reaction of acid chlorides and aryl iodides by sodium tetraphenylborate. This polymeric palla-dium(0) catalyst was stable and could be reused without noticeable loss of activity.

Key words: arsine palladium(0) complex, sodium tetraphenylborate, biaryl, phenyl ketone, polymeric palladium catalyst