精制间二硝基苯中甲氧基化反应的优化

Journal of Qingdao University of Science and Technology(Natural Science Edition)(2021)

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Abstract
以甲醇钠和混二硝基苯为原料研究了甲氧基化反应,将其中的邻、对二硝基苯转化为对应的硝基苯醚,从而得到高纯度间二硝基苯.并讨论了甲醇、甲醇钠加入量对粗间二硝基苯进行醚化反应收率的影响,确定了最优的工艺条件.实验结果表明:粗间二硝基苯和甲醇质量比为1:0.3,邻、对二硝基苯与甲醇钠的物质的量的比为1:1.05,反应时间50 min,反应温度76℃时,邻、对二硝基苯的转化率高达99.8%,间二硝基苯的纯度在99.8%以上.
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