| 甲醇钠催化合成2,2,4-三甲基-1,3-戊二醇单异丁酸酯 |
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| 引用本文： | 崇明本,张千,顾海平,何珍娟,陈维斌,王恒秀.甲醇钠催化合成2,2,4-三甲基-1,3-戊二醇单异丁酸酯[J].精细石油化工,2012,29(2):14-16. |
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| 作者姓名： | 崇明本 张千 顾海平 何珍娟 陈维斌 王恒秀 |
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| 作者单位： | 宜兴市恒兴精细化工有限公司,江苏宜兴,214213 |
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| 摘 要： | 研究了合成2,2,4-三甲基-1,3-戊二醇单异丁酸酯的新工艺。以异丁醛为原料,甲醇钠为催化剂,由一段反应工艺实现醇醛缩合、坎尼扎罗两步反应生成目标产物,较好的反应条件为:催化剂用量4g甲醇钠/(200g异丁醛),反应温度60℃,反应时间4h,使得异丁醛的单程转化率达到80%以上,目标产物的选择性达到97%以上。
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| 关 键 词： | 2 2 4-三甲基-1 3-戊二醇单异丁酸酯 异丁醛 甲醇钠 |
SYNTHESIS OF 2,2,4-TRIMETHYL-1,3-PENTANEDIOL MONOISOBUTYRATE CATALYZED BY SODIUM METHOXIDE |
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| Chong Mingben
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Zhang Qian
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Gu Haiping
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He Zhenjuan
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Chen Weibin
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Wang Hengxiu.SYNTHESIS OF 2,2,4-TRIMETHYL-1,3-PENTANEDIOL MONOISOBUTYRATE CATALYZED BY SODIUM METHOXIDE[J].Speciality Petrochemicals,2012,29(2):14-16. |
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| Authors: | Chong Mingben Zhang Qian Gu Haiping He Zhenjuan Chen Weibin Wang Hengxiu |
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| Affiliation: | (Yixing Hengxing Fine Chemicals Co.Ltd.,Yixing Economic Development Zone, Yixing 214213,Jiangsu,China) |
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| Abstract: | A new technology has been studied to synthesize 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate.Isobutyraldehyde is used as raw material and MeONa as catalyst by one step process,including aldol condensation reaction and Cannizzaro reaction.Under the following optimal conditions: 4 g MeONa as catalyst/(200 g isobutyraldehyde),60 ℃ reaction temperature and 4 h reaction time,the isobutyraldehyde conversion is above 80% and the target product selectivity is above 97%. |
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| Keywords: | 2 2 4-trimethyl-1 3-pentanediol monoisobutyrate isobutyraldehyde sodium methoxide |
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