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化学学报
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化学学报 ›› 2010, Vol. 68 ›› Issue (9): 897-903. 上一篇    下一篇

研究论文

吡啶氮桥联双环三唑鎓盐的合成及其在催化苯偶姻缩合、酯交换反应中的应用

马亚军, 薛成虎   

  1. (榆林学院化学与化工学院 榆林 719000)
  • 投稿日期:2009-08-26 修回日期:2009-11-18 发布日期:2010-01-04
  • 通讯作者: 马亚军 E-mail:mayajun@ylc.net.cn
  • 基金资助:

    陕西省教育厅科学研究计划项目（09JK837）

Synthesis of Pyrido-annulated Triazolium Salts and Its Application in Benzoin Condensation and Transesterification Reaction

MA E-Jun, XUE Cheng-Hu   

  1. (School of Chemistry and Chemical Engineering, Yulin University, Yulin 719000)
  • Received:2009-08-26 Revised:2009-11-18 Published:2010-01-04
  • Contact: 马亚军 MA Ya-Jun E-mail:mayajun@ylc.net.cn

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被引次数

7 | 2

合成了12个吡啶氮桥联的双环三唑鎓盐2a～2l卡宾催化剂前体, 用于催化苯偶姻缩合反应和酯交换反应, 考察了反应条件对催化反应的影响, 并与其它三唑鎓盐的催化活性进行了比较. 结果表明, 在较低催化剂用量下, 催化剂2c表现出优良的催化活性, 分离产率最高分别达到98%和93%.

关键词: 吡啶并三唑鎓盐, N-杂环卡宾, 苯偶姻缩合, 酯交换反应

A new class of pyrido-annulated triazolium salts 2a～2l has been synthesized and its application to the benzoin condensation and transesterification reaction catalyzed by pyrido-annulated triazolium salts was explored, Reaction condition effect was tested. The triazolium salt 2c turned out to be a powerful catalyst in benzoin condensation and transesterification reaction, which was comparable with or even superior to other well-established triazolylidenes already in the literature.

Key words: pyrido-annulated triazolium salt, N-heterocyclic carbene, benzoin condensation, transesterification reaction

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