| 邻硝基对甲苯胺的合成 |
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| 引用本文： | 张天永,付强,李彬,柴义. 邻硝基对甲苯胺的合成[J]. 精细化工, 2005, 22(11): 871-873 |
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| 作者姓名： | 张天永 付强 李彬 柴义 |
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| 作者单位： | 天津大学,化工学院,精细化工系,天津,300072;天津大学,化工学院,精细化工系,天津,300072;天津大学,化工学院,精细化工系,天津,300072;天津大学,化工学院,精细化工系,天津,300072 |
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| 基金项目： | 教育部留学回国人员科研基金[教外司留（2002）247号] |
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| 摘 要： | 以对甲苯胺为原料,合成了邻硝基对甲苯胺(红色基GL)。改进了合成工艺,将酰化、硝化、水解三步合为一锅反应,总收率可达88.8%。用发烟硝酸硝化,加入二氯乙烷作溶剂,溶剂可回收利用。通过实验确定了物料的最佳配比为:n(对甲苯胺)∶n(乙酐)=1∶1.15,n(对甲苯胺)∶n(发烟硝酸)=1∶2.6,二氯乙烷的用量为105 mL(0.1 mol对甲苯胺)。
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| 关 键 词： | 邻硝基对甲苯胺 对甲苯胺 乙酐 二氯乙烷 发烟硝酸 |
| 文章编号： | 1003-5214（2005）11-0871-03 |
| 收稿时间： | 2005-05-25 |
| 修稿时间： | 2005-05-252005-06-28 |
Synthesis of o-Nitro-p-toluidine |
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| ZHANG Tian-yong,FU Qiang,LI Bin,CHAI Yi. Synthesis of o-Nitro-p-toluidine[J]. Fine Chemicals, 2005, 22(11): 871-873 |
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| Authors: | ZHANG Tian-yong FU Qiang LI Bin CHAI Yi |
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| Affiliation: | Department of Fine Chemicals and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China |
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| Abstract: | o-Nitro-p-toluidine(Red Base GL) was prepared from p-toluidine.The process technology was improved,i.e.three steps of acylation,nitration and hydrolysis were combined in one reactor and the total yield of Red Base GL reached 88.8%.Fuming nitric acid was used for nitration and dichloroethane was used as the solvent which could be recovered.The optimum ratios of reactants determined by experiments were n(p-toluidine)∶n(acetic anhydride)=(1∶1.15),n(p-toluidine)∶n(fuming nitric acid)=1∶2.6,and 105 mL dichloroethane/0.1 mol p-toluidine. |
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| Keywords: | o-nitro-p-toluidine p-toluidine acetic anhydride dichloroethane fuming nitric acid |
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