| 2,2-二羟甲基庚醛的合成工艺研究 |
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| 引用本文： | 张漪,崔建兰,郭文龙.2,2-二羟甲基庚醛的合成工艺研究[J].应用化工,2007,36(2):173-175. |
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| 作者姓名： | 张漪 崔建兰 郭文龙 |
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| 作者单位： | 中北大学,化学工程系,山西,太原,030051 |
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| 摘 要： | 以甲醛和庚醛为原料,经羟醛缩合反应合成了2,2-二羟甲基庚醛(DMH)。羟醛缩合反应的最佳工艺条件为:反应温度35℃,n(甲醛)∶n(庚醛)∶n(NaOH)=4∶1∶1.3,缩合剂为10%NaOH溶液,反应时间为5h。加甲酸中和碱,经精制DMH的收率达到67.8%。DMH的结构用红外光谱(IR)表征。
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| 关 键 词： | 2 2-二羟甲基庚醛 甲醛 庚醛 羟醛缩合 |
| 文章编号： | 1671-3206(2007)02-0173-03 |
| 修稿时间： | 2006-08-18 |
Synthesis of 2,2-dimethylolheptaldehyde |
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| ZHANG Yi,CUI Jian-lan,GUO Wen-long.Synthesis of 2,2-dimethylolheptaldehyde[J].Applied chemical industry,2007,36(2):173-175. |
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| Authors: | ZHANG Yi CUI Jian-lan GUO Wen-long |
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| Affiliation: | Department of Chemical Engineering, North University of China,Taiyuan 030051, China |
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| Abstract: | 2,2-Dimethylolheptaldehyde was prepared from formaldehyde and n-heptaldehyde through condensation reaction.The optimum conditions of condensation reaction were temperature 35 ℃,reaction time 5 h and mole ratio of n(formaldehyde)∶n(n-heptaldehyde)∶n(sodium hydroxide)= 4 ∶1 ∶1.3,with 10% sodium hydroxide solution as catalyst,through neutralization by adding formic acid,2,2-dimethylolheptaldehyde was purified and its yield reached 67.8%.The structure of the product was confirmed by IR. |
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| Keywords: | 2 2-dimethylolheptaldehyde formaldehyde n-heptaldehyde aldol condensation |
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