摘要
本文研究了以Pd/Al_2O_3为催化剂,在酸性介质中硝基苯选择催化合成对氨基苯酚的反应。添加DMSO可明显提高反应选择性。在选定较佳条件下,硝基苯转化率为56.0%,对氨基苯酚选择性为55.6%。
The selective catalytic hydrogenation of nitrobenzene to p - aminophenol was investigated on Pd/Al2O3. Addition of DMSO could improve the selectivity of p - aminophenol significantly. Under the reaction condition which was determined, after 4 hours, 56. 0% of nitrobenzene was reacted and the yield of p -aminophenol was 55. 6%,without DMSO approximate 70% and 30% respectively.
出处
《精细化工》
EI
CAS
CSCD
1993年第2期50-53,共4页
Fine Chemicals