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| 十六烷基三甲基溴化铵催化合成2,4-二氯苯氧乙酸 | |
| 引用本文： | 农邦写,黄锁义,黄世稳,陆海峰.十六烷基三甲基溴化铵催化合成2,4-二氯苯氧乙酸[J].化工技术与开发,2011,40(1):1-3. |
| 作者姓名： | 农邦写 黄锁义 黄世稳 陆海峰 |
| 作者单位： | 1. 右江民族医学院临床医学系,广西,百色533000 2. 右江民族医学院药学系,广西,百色,533000 3. 右江民族医学院临床医学系,广西,百色533000;右江民族医学院药学系,广西,百色,533000 |
| 基金项目： | 广西自然科学基金课题，广西教育厅课题 |
| 摘 要： | 利用十六烷基三甲基溴化铵催化氯乙酸和2,4-二氯苯酚合成2,4-二氯苯氧乙酸,十六烷基三甲基溴化铵具有较高的催化活性,可以加快合成2,4-二氯苯氧乙酸.反应过程考察了2,4-二氯苯酚与氯乙酸摩尔比、催化剂用量、反应时间、反应温度对产率的影响以及催化剂的重复使用性能.反应的最佳条件为:在85℃下,2,4-二:氯苯酚和氯乙... |
| 关 键 词： | 2 4-二氯苯氧乙酸 氯乙酸 2 4-二氯苯酚 十六烷基三甲基溴化铵 合成 |
Catalyzed Synthesis of 2,4-Dichlorophenoxyacetic Acid by Cetyltrimethylammonium Bromide |
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| NONG Bang-xie,HUANG Suo-yi,HUANG Shi-wen,LU Hai-feng.Catalyzed Synthesis of 2,4-Dichlorophenoxyacetic Acid by Cetyltrimethylammonium Bromide[J].Technology & Development of Chemical Industry,2011,40(1):1-3. | |
| Authors: | NONG Bang-xie HUANG Suo-yi HUANG Shi-wen LU Hai-feng |
| Affiliation: | (Youjiang Medical College for Nationalities,Baise 533000,China) |
| Abstract: | 2,4-dichlorophenoxyacetic acid was synthesized with chloroacetic acid and 2,4-dichloro-phenol catalyzed by cetyltrimethylammonium bromide.Cetyltrimethylammonium bromide had a higher catalytic activity,and could be accelerate the synthesis of 2,4-dichlorophenoxyacetic acid.Molar ratio of 2,4-dichloro-phenol to chloroacetate,catalyst amount,reaction time and reaction temperature on yield and performance of the repeated use of catalyst,were studied.The best reaction conditions were as followed:at 85℃,molar ratio of 2,4-dichloro-phenol to chloroacetate 1:3,catalyst weight of 0.3 g,reaction time 4h.The yield of 2,4-dichlorophenoxyacetic acid was 54.37%.The amount of catalyst was small,and it was easy recovery and reused. |
| Keywords: | 2 4-dichlorophenoxyacetic acid chloroacetate 2 4-dichloro-phenol cetyltrimethylammonium bromide synthesis |
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