| 苯乙炔烯基化反应制备缩醛的研究 |
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| 引用本文： | 李立军,刘焕梅.苯乙炔烯基化反应制备缩醛的研究[J].精细石油化工,2006,23(4):19-21. |
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| 作者姓名： | 李立军 刘焕梅 |
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| 作者单位： | 1. 河北大学化学与环境科学学院,河北,保定,071002
2. 河北大学化学与环境科学学院,河北,保定,071002;河北理工大学轻工学院,河北,唐山,063020 |
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| 摘 要： | 在氢氧化钾-二甲基亚砜(KOH-DMSO)强碱性双向催化体系中,被活化的醇与苯乙炔发生烯基化反应,进而与醇生成相应的缩羰类化合物,适宜的催化剂配比为4．0 g KOH需要25．0 g DMSO。制备苯乙醛缩二甲醇、苯乙醛缩乙二醇、苯乙醛缩1,2-丙二醇的最佳反应时间分别为30,50,60 min,收率分别为85．7％, 80．3％,79．1％。该法工艺简单,收率优于甲醇钠体系。
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| 关 键 词： | 缩醛 苯乙醛缩二甲醇 苯乙醛缩乙二醇 苯乙醛缩1 2-丙二醇 |
| 收稿时间： | 2005-11-07 |
| 修稿时间： | 2006-06-28 |
SYNTHESES OF ACETAL COMPOUNDS FROM PHENETHYLACETYLENE BY ETHENOID REACTION |
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| Li Lijun,Liu Huanmei.SYNTHESES OF ACETAL COMPOUNDS FROM PHENETHYLACETYLENE BY ETHENOID REACTION[J].Speciality Petrochemicals,2006,23(4):19-21. |
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| Authors: | Li Lijun Liu Huanmei |
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| Affiliation: | 1. College of Chemistry and Environmental Science, Hebei University, Baoding 71002, Hebei, China; 2. Institute of Light Industry, Hebei Polytechnic University, Tangshan 063020, Hebei, China |
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| Abstract: | Phenylacetaldehyde dimethyl alcohol acetal, phenylacetaldehyde glycol acetal and phenylacetaldehyde 1,2-propanediol acetal were synthesized by reacting phenylacetylene with activated methanol, glycol and 1, 2-propanediol, respectively, in a super-basic biphase catalytic system (KOH/ DMSO). The appropriate amount of catalyst in these reactions is KOH-DMSO(g/mL) = 4. 0/25. 0 and the optimal reaction time is 30, 50 and 60 min, respectively, giving the yields of phenylacetaldehyde dimethyl alcohol acetal, phenylacetaldehyde glycol acetal and phenylacetaldehyde 1,2-propanediol acetal 85. 7% , 80. 3% and 79. 1%, respectively. This method is simpler and the yields are higher than the traditional method catalyzed by strong basic sodium methoxide. |
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| Keywords: | acetal phenylacetaldehyde dimethyl alcohol acetal phenylacetaldehyde glycol acetal phenylacetaldehyde 1 2-propanediol acetal |
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