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有机化学
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有机化学 ›› 2010, Vol. 30 ›› Issue (08): 1237-1239. 上一篇    下一篇

研究简报

水溶液中锌电极诱发芳香醛的还原偶联反应

边延江*，张高峰   

  1. (廊坊师范学院化学系 廊坊 065000)
  • 收稿日期:2009-10-16 修回日期:2009-11-17 发布日期:2010-03-09
  • 通讯作者: 边延江 E-mail:bianyanjiang@126.com
  • 基金资助:

    河北省科技厅项目

Reductive Coupling Reactions of Aromatic Aldehydes Using Zinc as Electrode in Aqueous Media

BIAN Yan-Jiang, ZHANG Gao-Feng   

  1. (Department of Chemistry, Langfang Normal College, Langfang 065000)
  • Received:2009-10-16 Revised:2009-11-17 Published:2010-03-09
  • Contact: YanJiang Bian E-mail:bianyanjiang@126.com

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以锌片为电极芳香醛为底物在酸性条件下电合成呐醇, 探讨了电流密度、反应时间、盐酸浓度对产率的影响. 最佳反应条件如下: 电流密度2.4 A/dm2, 反应时间60 min, 盐酸用量(5 mL) 2 mol/L, 呐醇的产率范围14%～80%.

关键词: 呐醇, 电合成, 锌电极, 芳香醛, 水溶液

Electrosynthesis of pinacols by using zinc tablets for the electrode and aromatic aldehydes as substrate in acid condition was performed. The influence of the current density, reaction time and hydrochloric acid concentration on pinacols yield was explored. The optimal reaction conditions were as follow: current density of 2.4 A/dm2, reaction time of 60 min, hydrochloric acid concentration of 2 mol/L, the yield of pinacols was up to 14%～80%.

Key words: pinacol, electrosynthesis, zinc electrode, aromatic aldehyde, aqueous media