PANG Shi wei,WANG Chun mei,ZHAO Xiao yu,et al.Study on Catalytic Synthesis of 2,4-Dichlorophenoxyacetie Aeid N-Butyl[J].HEILONGJIANG AGRICULTURAL SCIENCES,2014,(05):70-72.
催化合成2,4-二氯苯氧乙酸正丁酯的研究
- Title:
- Study on Catalytic Synthesis of 2,4-Dichlorophenoxyacetie Aeid N-Butyl
- 文章编号:
- 1002-2767(2014)05-0070-03
- 关键词:
- 2; 4-二氯苯氧乙酸正丁酯; 酯化反应; 催化合成
- 分类号:
- S482.4+9
- 文献标志码:
- A
- 摘要:
- 为探索2,4-二氯苯氧乙酸正丁酯酯化反应的最佳提取条件,以固体超强酸(SO2-4/SnO2)作为催化剂,研究了催化剂用量、反应温度及醇酸比对2,4-二氯苯氧乙酸正丁酯酯化反应的影响。结果表明:以固体超强酸(SO2-4/SnO2)作为催化剂活性最高,其酯化反应最佳合成工艺条件为A2B2C2,即催化剂用量0.6%、酯化反应温度110℃、正丁醇与2,4-二氯苯氧乙酸摩尔比2∶1,2,4-二氯苯氧乙酸的转化率达99.87%。
- Abstract:
- In order to explore best extraction conditions of 2,4-D butylate esterification,taking solid super acid as catalyst,the effects of temperature,catalyst,ratio of alcohol to acid on 2,4-D butylate esterification were studied.The results showed that:the optimum reaction conditions of esterification wa- A2B2C2,thats the amount of catalyst was 0.6%,reaction temperature was 110℃ and the molar ration of alcohol and acid was 2∶1,the conversion rate of 2,4-dichlorphenoxyacetic acid reached 99.87%.
参考文献/References:
[1]胡建平,储伟,邱发礼.固体酸催化乙酸丁醇酯化反应的研究[J].精细化工,2000(5):269-273. [2]陈丹云,王敬平,柏艳.乙酸异戊酯合成研究进展[J].湖北化工,2001(6):8-10. [3]田部浩三著.超强酸与超强碱[B].催圣范,译.北京:化学工业出版社,1986. [4]德尔蒙B.催化剂制备[B].江仁,译.北京:化学工业出版社,1985.
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备注/Memo
收稿日期:2013-1-14第一作者简介:庞仕巍(1983-),男,黑龙江省哈尔滨市人,助理工程师,从事除草剂合成研究。E-mail:280619607@qq.com。