有机化学 ›› 2013, Vol. 33 ›› Issue (01): 190-194.DOI: 10.6023/cjoc201208010 上一篇    下一篇

研究简报

氯化铯催化羧酸钠(钾)与α-氯代乙酸酯及溴(氯)代烃反应

刘文奇a, 奇建永b, 陈锦杨b, 李宁波b, 邱仁华b, 许新华b   

  1. a 湘南学院湘南稀贵金属化合物及其应用湖南省重点实验 郴州 423000;
    b 湖南大学化学化工学院 长沙 410082
  • 收稿日期:2012-08-13 修回日期:2012-09-08 发布日期:2012-09-21
  • 通讯作者: 许新华 E-mail:xhx1581@yahoo.com.cn
  • 基金资助:

    湖南省自然科学基金(No. 08JJ3018)资助项目.

Cesium Chloride Catalysized the Reaction of Sodium (Potassium) Carboxylates with Alkyl Bromides (Chlorides)

Liu Wenqia, Qi Jianyongb, Chen Jinyangb, Li Ningbob, Qui Renhuab, Xu Xinhuab   

  1. a Hunan Provincial Key Laboratory of Xiangnan Rare-Precious Metals Compounds Research and Application, Xiangnan University, Chenzhou 42300;
    b College of Chemistry Chemical and Engineering, Hunan University, Changsha 410082
  • Received:2012-08-13 Revised:2012-09-08 Published:2012-09-21
  • Supported by:

    Project supported by the Natural Science Foundation of Hunan Province (No. 08JJ3018).

以DMF为溶剂, 在催化量氯化铯存在下, 羧酸钠(钾)与α-氯代乙酸酯在室温下反应及其与溴(氯)代烃在60℃反应, 分别形成对应的羧酸(α-烷氧甲酰)甲酯与羧酸酯, 产率90%以上, 讨论了催化机理.

关键词: 氯化铯, 羧酸钠(钾), α-氯代乙酸酯, 酯化反应

In the presence of catalytic amounts of cesium chloride, using DMF as solvent, sodium (potassium) carboxylates reacted with α-chloroacetates at room temperature or reacted with alkyl bromides (chlorides) at 60℃ to give the corresponding (α-alkoxyformacyl)methyl carboxylic esters and carboxylic esters in >90% yields. The catalytic mechanism was discussed.

Key words: cesium chloride, sodium (potassium) carboxylates, alkyl bromides (chlorides), esterification