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| 4-甲基苯亚磺酸钠的合成 | |
| 引用本文： | 邹玲.4-甲基苯亚磺酸钠的合成[J].精细化工,2010,27(6). |
| 作者姓名： | 邹玲 |
| 作者单位： | 1. 嘉兴学院,生物与化学工程学院,嘉兴市清洁化工工艺重点实验室,浙江,嘉兴,314001;江苏工业学院,化学化工学院,江苏,常州,213164 2. 江苏工业学院,化学化工学院,江苏,常州,213164 3. 嘉兴学院,生物与化学工程学院,嘉兴市清洁化工工艺重点实验室,浙江,嘉兴,314001 |
| 基金项目： | 浙江省自然科学基金资助项目，嘉兴市科技局项目 |
| 摘 要： | 研究4-甲基苯磺酰氯为原料还原合成4-甲基苯亚磺酸钠的工艺,以紫外分光光度法分析产物的含量。采用亚硫酸钠水溶液为底物,滴加4-甲基苯磺酰氯的二氯甲烷溶液,反应过程中同时滴加质量分数为10%氢氧化钠水溶液控制pH。最佳工艺条件为:原料配比n(4-甲基苯磺酰氯)∶n(亚硫酸钠)=1∶1.09,反应温度为85℃,反应时间为1h,m(水)/m(4-甲基苯磺酰氯)=10,pH=7.6,收率为89%。 |
| 关 键 词： | 4-甲基苯磺酰氯 4-甲基苯亚磺酸钠 紫外分光光度法分析 精细化工中间体 |
| 收稿时间： | 2009/12/14 0:00:00 |
| 修稿时间： | 2010/3/11 0:00:00 |
Synthesis of sodium 4-methylbenzene sulfinate |
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| ZOU Ling.Synthesis of sodium 4-methylbenzene sulfinate[J].Fine Chemicals,2010,27(6). | |
| Authors: | ZOU Ling |
| Abstract: | The synthesis of sodium 4-methylbenzene sulfinate was investigated by using the sodium sulfite deoxidization process from the starting material 4-methylbenzene sulfonyl chloride,and the contents of product were analyzed by UV-spectrophotometric method.The aqueous sodium sulfite which used as a substrate was added to dichloromethane solution containing 4-methylbenzene sulfonyl chloride,at the same time,the pH was controlled by adding dropwise 10% sodium hydroxide solution in the reaction process.The optimun reaction conditions were shown as follows:n(4-methylbenzene sulfonyl chloride)∶n(sodium sulfite)=1∶1.09,reaction temperature 85 ℃,reaction time 1 h,m(water)/m(4-methylbenzene sulfonyl chloride)=10,pH=7.6,with a yield of 89%. |
| Keywords: | 4-methylbenzene sulfonyl chloride Sodium 4-methylbenzene sulfinate UV-spectrophotometric method |
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