摘要
以自制的乙酰丙酮钌配合物(Ru(acac)3)为催化剂,甲酸钠为氢供体,十六烷基三甲基溴化铵为乳化剂,研究了水溶液中催化硝基苯氢转移氢化制苯胺的工艺。确定了适宜反应条件为:甲酸钠和硝基苯摩尔比为2∶1,反应温度80℃,反应时间4.0 h,Ru(acac)3用量为硝基苯质量的4%。硝基苯的转化率和苯胺产率分别为100%和96.65%,表明Ru(acac)3对硝基苯氢转移氢化制苯胺具有优异的催化作用。
Using home-made tris（acetylacetonato）ruthenium（Ⅲ）,Ru（acac）3,as catalyst,the hydrogenation of nitrobenzene to aniline via a hydrogen transfer process using sodium formate as hydrogen donor was investigated.The effects of reaction conditions such as temperature,time,dosage of catalyst and categories of hydrogen donor were investigated.The optimized reaction conditions are： the reaction temperature is 80 ℃,the reaction time is 4 h and the molar ratio of sodium formate to nitrobenzene is 2∶ 1.Under optimized conditions,the conversion of nitrobenzene is nearly 100% with 96.65% yield of aniline.This result shows that Ru（acac）3 exhibits good catalytic activities in the hydrogenation of nitrobenzene.
出处
《应用化学》
CAS
CSCD
北大核心
2013年第4期389-393,共5页
Chinese Journal of Applied Chemistry
关键词
乙酰丙酮钌
氢转移
硝基苯
苯胺
tris（acetylacetonato）ruthenium（Ⅲ）
catalytic transfer hydrogenation
nitrobenzene
aniline
