Chin. J. Org. Chem. ›› 2014, Vol. 34 ›› Issue (12): 2471-2477.DOI: 10.6023/cjoc201407024 Previous Articles     Next Articles

ARTICLE

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).

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