有机化学 ›› 2014, Vol. 34 ›› Issue (12): 2471-2477.DOI: 10.6023/cjoc201407024 上一篇    下一篇

研究论文

钯催化溴代水杨醛与吡啶硼酸的Suzuki交叉偶联反应

王碧玉a, 倪沛钟a, 范吉理a, 郑辉东a, 赵素英a, 白正帅a,b   

  1. a. 福州大学石油化工学院 福州 350108;
    b. 能源与环境光催化国家重点实验室 福州 350002
  • 收稿日期:2014-07-12 修回日期:2014-08-17 发布日期:2014-09-09
  • 通讯作者: 白正帅 E-mail:baizs@fzu.edu.cn
  • 基金资助:

    国家基础科学人才培养基金(No.J1103303)和福州大学科研启动基金(No.XRC-1305)资助项目.

Pd-Complex Catalyzed Suzuki Cross-Coupling Reaction of Brominated Salicylaldehyde with Pyridylboronic Acid

Wang Biyua, Ni Peizhonga, Fan Jilia, Zheng Huidonga, Zhao Suyinga, Bai Zhengshuaia,b   

  1. a. School of Chemical Engineering, Fuzhou University, Fuzhou 350108;
    b. State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou 350002
  • Received:2014-07-12 Revised:2014-08-17 Published:2014-09-09
  • Supported by:

    Project supported by the National Natural Science Fundation of China (No. J1103303) and the Research Fund of Fuzhou University (No. XRC-1305).

通过研究不同种类钯催化剂[Pd(dppf)2Cl2, Pd(OAc)2, Pd(PPh3)4]、碱(Na2CO3, NaHCO3, K2CO3, K3PO4, Cs2CO3, CsF)、溶剂(DME/H2O, DMF/H2O, Dioxane/H2O)及温度(70, 80, 100 ℃)对5-溴-3-叔丁基水杨醛与吡啶-4-硼酸制备5-(4-吡啶)-3-叔丁基水杨醛化合物的Suzuki偶联反应的影响, 开发出一种高效催化吸或供电子基取代的芳基硼酸与吸电子基取代的溴代芳烃的偶联反应的方法, 该反应在Pd(PPh3)4, K2CO3, Dioxane/H2O (V:V=4:1)、80 ℃的条件下产率达到97%, 且具有分离简单、重现性好的特征; 但对供电子基取代的溴代芳烃参与的反应催化效果一般.

关键词: Suzuki偶联反应, 吡啶硼酸, 溴代芳烃, 催化机理

The synthesis of 3-tert-butyl-2-hydroxy-5-(pyridin-4-yl)benzaldehyde by Suzuki cross coupling reaction of 5-bromo-3-tert-butyl-2-hydroxybenzaldehyde with pyridin-4-ylboronic acid was studied by using different catalysts [Pd(dppf)2Cl2, Pd(OAc)2 and Pd(PPh3)4], bases (Na2CO3, NaHCO3, K2CO3, K3PO4, Cs2CO3 and CsF) and solvents (DME/H2O, DMF/H2O and dioxane/H2O) under different temperature of 70, 80 and 100 ℃. A compatible method was developed for the coupling reaction of arylboronic acids (having electron donating or withdrawing group) with aryl bromides (having electron withdrawing group). Under the condition of Pd(PPh3)4, K2CO3, dioxane/H2O (V:V=4:1), 80 ℃, the yield is excellent (97%) and the product separation is easy. The compatibility for aryl bromides with electron donating group is moderate.

Key words: Suzuki cross coupling reaction, pyridylboronic acid, aryl bromide, catalytic mechanism