引用本文:
岳可芬, 周春生, 姜严梅. 苯乙醛和对甲氧基苯甲醛的新合成方法[J]. 应用化学,
2008, 25(9): 1113-1115.
Citation: YUE Ke-Fen, ZHOU Chun-Sheng, JIANG Yan-Mei. A Novel Synthetic Method for Phenylacetaldehyde and p-Methoxybenzaldehyde[J]. Chinese Journal of Applied Chemistry, 2008, 25(9): 1113-1115.
Citation: YUE Ke-Fen, ZHOU Chun-Sheng, JIANG Yan-Mei. A Novel Synthetic Method for Phenylacetaldehyde and p-Methoxybenzaldehyde[J]. Chinese Journal of Applied Chemistry, 2008, 25(9): 1113-1115.
苯乙醛和对甲氧基苯甲醛的新合成方法
摘要:
分别以苯乙酸和对甲氧基苯甲酸为原料,与邻苯二胺、碘甲烷经环化、季铵化反应简便合成1,3-二甲基-2-取代苯并咪唑盐,相应苯并咪唑盐与碲氢化钠经还原-水解反应分别制得苯乙醛和对甲氧基苯甲醛。并对苯并咪唑盐与碲氢化钠的还原-水解反应机理进行了讨论。
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关键词:
- 苯乙醛
- / 对甲氧基苯甲醛
- / 二甲基取代苯并咪唑盐
- / 碲氢化钠
English
A Novel Synthetic Method for Phenylacetaldehyde and p-Methoxybenzaldehyde
Abstract:
1,3-Dimethyl-2-substituted benzimidazolium salts can be easily prepared from phenylacetate or p-methoxybenzoic acid,o-phenylenediamine and methyl iodide via cyclization and quarternarization.Phenylacetaldehyde and p-methoxylbenzaldehyde were respectively prepared through the reduction-hydrolysis reaction of the corresponding 1,3-dimethyl-2-substituted benzimidazolium ioidide with sodium hydrogen telluride.A novel synthetic method for phenylacetaldehyde or p-methoxylbenzaldehyde from phenylacetate or p-methoxybenzoic acid via reduction-hydrolysis of benzimidazolium salt is presented.This synthetic route has mild reaction conditions and high product purities.The reaction mechanism is discussed.
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