硝基还原法制备4,4'-二甲基偶氮苯  

Preparation of 4,4'-dimethyl Azobenzene through Nitroreduction Reaction

作　　者：吴平[1] 任红[1] 刘治刚[1] 薛健飞[1] 赵明哲[1] 

机构地区：[1]吉林化工学院化学与制药工程学院,吉林吉林132022

出　　处：《广州化工》2015年第22期49-50,53,共3页GuangZhou Chemical Industry

基　　金：吉林省教育厅基金项目(No.2013326)

摘　　要：偶氮苯及其衍生物由于其独特的化学结构和性质,在有机合成、光化学反应和光储蓄设备中都有着广泛的应用。本文以对硝基甲苯为主原料,分别以镁屑、锌粉两种金属为还原剂,通过将对硝基甲苯中的硝基还原偶联,合成了4,4'-二甲基偶氮苯,目标产物通过熔点和紫外光谱进行了表征。以镁屑为还原剂时反应溶剂为甲醇;以锌粉为还原剂时,反应时间控制在10h产率较高,可达84%。For the unique chemical structure and properties of azobenzene and its derivatives, there are a large range of applications in organic synthesis, photochemical reaction and light saving equipment. The nitro toluene is used as the main raw materials to synthesize 4,4’-dimethyl azobenzene through nitroreduction reaction, using two kinds of reducing agents （ magnesium/methanol and zinc/sodium hydroxide ） respectively. The final product was characterized by melting point and UⅤspectra. The methanol chips were used as reaction solvent along with reducing agents magnesium. When the zinc powder was used as a reducing agent, the reaction time 10 h was suitable and the yield was up to 84%.

关 键 词：偶氮苯 对硝基甲苯 硝基还原 

分 类 号：O625[理学—有机化学]