| 3,3-二甲基-4-戊烯酸甲酯合成方法的改进及表征 |
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| 引用本文： | 廖艳芳,余慧群,莫友彬,周海,彭初和.3,3-二甲基-4-戊烯酸甲酯合成方法的改进及表征[J].精细化工中间体,2012,42(5):14-16. |
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| 作者姓名： | 廖艳芳 余慧群 莫友彬 周海 彭初和 |
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| 作者单位： | 广西化工研究院,广西南宁,530001 |
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| 基金项目： | 广西自然科学基金重点项目 |
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| 摘 要： | 采用相模法以原乙酸三甲酯与3-甲基-2-丁烯醇为原料,经过重排反应和酯交换反应,合成了除虫菊酯类杀虫剂的重要中间体3,3-二甲基-4-戊烯酸甲酯。改进相模的工艺更适应工业生产,收率达到85.6%,产品纯度达到99.2%。
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| 关 键 词： | 3 3-二甲基-4-戊烯酸甲酯 3-甲基-2-丁烯醇 原乙酸三甲酯 合成 |
Improved Synthesis of 3,3-Dimethyl-4-pentenoic Acid Methyl Ester |
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| LIAO Yan-fang
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YU Hui-qun
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MO You-bin
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ZHOU Hai
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PENG Chu-he.Improved Synthesis of 3,3-Dimethyl-4-pentenoic Acid Methyl Ester[J].Fine Chemical Intermediates,2012,42(5):14-16. |
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| Authors: | LIAO Yan-fang YU Hui-qun MO You-bin ZHOU Hai PENG Chu-he |
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| Affiliation: | (Guangxi Research Institute of Chemical Industry,Nanning 530001,China) |
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| Abstract: | 3,3-Dimethyl-4-pentenoic acid methyl ester is an important intermediate for the synthesis of pyrethroids pesticides.It can be prepared using 3-methyl-2-buten-1-ol and trimethyl orthoacetate as the starting materials,through Claisen rearrangement and transesterification reaction(Sagami method).This method was improved for industrial production and the product was obtained in 85.5% yield with purity of 99.2%. |
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| Keywords: | 3 3-dimethyl-4-pentenoic acid methyl ester 3-methyl-2-buten-1-ol trimethyl orthoacetate synthesis |
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