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兴发pt登录学报, 2019, 36(5): 16-18     https://doi.org/10.16039/j.cnki.cn22-1249.2019.05.004
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2-硝基-4′-二甲氨基偶氮苯的合成及性质研究
任红,吴平,唐佳琪
兴发pt登录 化学与制药工程学院
Synthesis and Properties of 2-Nitro-4'-Dimethylaminoazobenzene
REN Hong, WU Ping, TANG Jiaqi
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摘要 

以邻硝基苯胺为原料,与重氮盐反应制得中间体邻硝基苯基重氮盐,进一步与N,N-二甲基苯胺偶合合成偶氮化合物,2-硝基-4′-二甲氨基偶氮苯(化合物1)。我们考察了pH值、化学计量比和温度等反应条件对合成的影响,用红外光谱表征其结构,并通过紫外光谱对化合物的酸碱变色性及光谱性质进行了研究。实验结果表明化合物1具有较大的摩尔吸光系数(ε= 2.42 × 104 L/mol·cm),良好的酸碱变色性。

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任红
吴平
唐佳琪
关键词:  邻硝基苯胺  2-硝基-4′-二甲氨基偶氮苯  重氮偶合  紫外光谱     
Abstract: 

The intermediate o-nitrophenyl diazo salt was synthesized from o-nitroaniline and diazo salt. The compound 1, 2-nitro-4'-dimethylaminoazobenzene was further prepared by coupling diazo salt with N, N-dimethylaniline. The effects of reaction conditions such as pH value, stoichiometric ratio and temperature on the synthesis were investigated. The structure of the compound was characterized by infrared spectroscopy. The acid-base discoloration and spectrum properties of 1 were studied by ultraviolet spectroscopy. The experimental results show that 1 has high molar absorptivity (ε=2.42*104 L/mol.cm) and good acid-base discoloration.

Key words:  O-nitroaniline    2-Nitro-4'-Dimethylaminoazobenzene    Diazo Coupling    Ultraviolet Spectra
               出版日期:  2019-05-25      发布日期:  2019-05-25      整期出版日期:  2019-05-25
ZTFLH:  O636.1  
引用本文:    
任红, 吴平, 唐佳琪. 2-硝基-4′-二甲氨基偶氮苯的合成及性质研究 [J]. 兴发pt登录学报, 2019, 36(5): 16-18.
REN Hong, WU Ping, TANG Jiaqi. Synthesis and Properties of 2-Nitro-4'-Dimethylaminoazobenzene . Journal of Jilin Institute of Chemical Technology, 2019, 36(5): 16-18.
链接本文:  
http://xuebao.jlict.edu.cn/CN/10.16039/j.cnki.cn22-1249.2019.05.004  或          http://xuebao.jlict.edu.cn/CN/Y2019/V36/I5/16
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