Chin. J. Org. Chem. ›› 2013, Vol. 33 ›› Issue (03): 611-614.DOI: 10.6023/cjoc201211002 Previous Articles     Next Articles

Articles

双阳离子型室温离子液体中Suzuki偶联反应研究

张传越, 石若冰, 陈才元, 金传明   

  1. 湖北师范学院污染物分析与资源化技术湖北省重点实验室 黄石 435002
  • 收稿日期:2012-11-01 修回日期:2012-11-22 发布日期:2012-11-26
  • 通讯作者: 金传明 E-mail:jincm1999@yahoo.com
  • 基金资助:

    国家自然科学基金(No. 21171053)和湖北省教育厅基金(No. Z20102501)资助项目.

Suzuki Cross-Coupling Reactions in Dicationic Room Temperature Ionic Liquid

Zhang Chuanyue, Shi Ruobing, Chen Caiyuan, Jin Chuanming   

  1. Hubei Normal University, Hubei Province Key Laboratory of Pollutant Analysis and Reuse Technology, Huangshi 435002
  • Received:2012-11-01 Revised:2012-11-22 Published:2012-11-26
  • Supported by:

    Project supported by the National Natural Science Foundation of China (No. 21171053) and the Science Foundation of Hubei Provincial Department of Education (No. Z20102501).

Room temperature ionic liquid (RTIL) 2 with pincer bisimidazole cationic nuclei was prepared. Its phase transition and thermal decomposition temperature are -51 and 412 ℃, respectively. Suzuki reactions have been studied when different catalyst PdCl2, Pd(OAc)2, Pd-N-heterocyclic carbene complex 3 were used in RTIL 2. The results indicate that aryl bromide can react with phenylboronic acid in the yield of over 85% in the presence of NaOAc and 0.5 mol% Pd-NHC 3, and the loading capability of Pd-NHC 3 in RTIL 2 is best. This high efficient catalytic system is environmentally benign, recoverable and easily separated with products.

Key words: room temperature ionic liquids, Suzuki cross-coupling reactions, N-heterocyclic carbene complex, palladium