Pd/C催化硝基苯氢化制氢化偶氮苯的研究

Research on Pd/C Catalysed Hydrogenation of Nitrobenzene to Hydrazobenzene

在碱性甲醇溶液中 ,硝基苯在Pd/C催化作用下能高产率地选择性氢化还原为氢化偶氮苯 ,2h转化率达10 0 % ,产品收率 98.5 %以上 .通过XRD初步分析了催化作用原理 。

The title process was performed in a basic methanol solution. Thus,2.0g nitrobenzene in 25ml methanol were hydrogenated at 40℃ with 2.0g NaOH and 0.2g catalysts for 2 hours, to give 98.5℅ hydrazobenzene, and the conversion was about 100%. The catalysts were primarily charaterized by XRD, and the reaction mechanism was proposed.