| 李海花.茉莉醛的合成工艺研究[J].唐山学院学报,2015,28(3):65-67 |
| 茉莉醛的合成工艺研究 |
| On Synthesis of Jasminaldehydes |
| 投稿时间：2014-10-28 |
| DOI： |
| 中文关键词: 茉莉醛 相转移催化 工艺研究 中图 |
| 英文关键词: Jasminaldehyde phase transfer catalysis synthesis |
| 基金项目: |
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| 摘要点击次数: 7469 |
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| 中文摘要: |
| 茉莉醛是一种十分重要的合成香料,具有非常重要的应用价值。以苯甲醛和正庚醛为原料,PEG-400为相转移催化剂,氢氧化钾作碱性催化剂,乙醇为溶剂,采用相转移催化的方法制取茉莉醛。通过正交实验确定了最佳反应条件,在PEG-400的用量为4.5 g,水醇体积比为2.5∶1,正庚醛的滴加速率为30滴/min,苯甲醛与正庚醛的摩尔比为1.25∶1的条件下,茉莉醛的产率达到86%。 |
| 英文摘要: |
Jasminaldehyde is a very important synthesis spice, and has a very important value.
is paper is meant to discuss the preparation of jasminaldehyde through phase transfer catalysis ,with benzaldehyde and heptylaldehyde as raw material, PEG/400 as aphase transfer catalyst, potassium hydroxide as an alkaline catalyst, and ethanol as solvent.
e optimal reaction conditions determined by orthogonal experimenting are as follows: the amount of PEG-400 is 4.5 g, the volume ratio of water to alcohol is 2.5∶1,the adding rate of heptylaldehyde is 30 drops/min,the reactant molar ratio of Benzaldehyde to heptylaldehyde is 1.25 to 1, and the yield of jasminaldehyde is as high as 86%. |
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