| 水溶性含钌-铂双金属催化剂催化卤代芳香硝基化合物选择性加氢 |
| |
| 引用本文： | 周娅芬,陈骏如,李瑞祥,赵松林,李贤均.水溶性含钌-铂双金属催化剂催化卤代芳香硝基化合物选择性加氢[J].高等学校化学学报,2004,25(5):884-887. |
| |
| 作者姓名： | 周娅芬 陈骏如 李瑞祥 赵松林 李贤均 |
| |
| 作者单位： | 1. 四川大学化学学院有机金属络合催化研究所, 成都 610064;
2. 西华师范大学化学系, 南充 637002 |
| |
| 摘 要： | 考察了水溶性Ru/Pt-TPPTS双金属催化剂催化卤代芳香硝基化合物的加氢性能.实验结果表明,在Ru-TPPTS中添加铂或钯后,反应活性明显提高,尤其是Ru/Pt-TPPTS双金属催化剂更表现出显著的双金属协同效应.在pH2=1.0MPa,70℃,反应2h的条件下,双金属催化剂0.50Ru/0.50Pt-TPPTS催化对-氯硝基苯加氢生成对-氯苯胺的反应转化率达到100%.对于取代基和取代位置不同的一些卤代硝基苯加氢,该双金属催化剂也表现出很高的催化活性和生成卤代苯胺的选择性,脱卤反应的程度很小.
|
| 关 键 词： | 水溶性双金属催化剂 催化加氢 卤代芳香硝基化合物 双金属协同效应 |
| 文章编号： | 0251-0790(2004)05-0884-04 |
| 收稿时间： | 2003-07-03 |
Selective Hydrogenation of Halonitroaromatic Compounds Catalyzed by Water-soluble Bimetallic Catalyst Containing Ruthenium and Platinum |
| |
| ZHOU Ya-Fen ,CHEN Jun-Ru ,LI Rui-Xiang ,ZHAO Song-Lin ,LI Xian-Jun.Selective Hydrogenation of Halonitroaromatic Compounds Catalyzed by Water-soluble Bimetallic Catalyst Containing Ruthenium and Platinum[J].Chemical Research In Chinese Universities,2004,25(5):884-887. |
| |
| Authors: | ZHOU Ya-Fen CHEN Jun-Ru LI Rui-Xiang ZHAO Song-Lin LI Xian-Jun |
| |
| Institution: | 1. Institute of Organometallic Complex Catalysis, College of Chemistry, Sichuan University, Chengdu 610064, China;
2. Department of Chemistry, China West Normal University, Nanchong 637002, China |
| |
| Abstract: | Selective hydrogenation of halonitroaromatic compounds catalyzed by water-soluble bimetallic catalyst containing ruthenium and platinum in the aqueous/organic two-phase system was studied. It was found that the reaction rate increased obviously due to the addition of Pt and Pd. Ru/Pt-TPPTS bimetallic catalyst exhibits a strong synergic effect when the molar ratio of Ru to Pt is 1/1. Under the conditions of 70 ℃, p H2=1.0 MPa, the conversion of p-Cl-C6H4NO2 is 100% in the presence of Ru/Pt-TPPTS catalyst, which is higher than that of Ru-TPPTS or Pt-TPPTS, the selectivity of p-Cl-C6H4NH2 is more than 99%. The catalyst also exhibits a high activity and selectivity for the hydrogenation of other haloaromatic nitro-compounds with different substituents and substituted positions. Meanwhile, the amount of dehalogenation product(aniline) is about 1%. |
| |
| Keywords: | Water-soluble bimetallic catalyst Catalytic hydrogenation Halonitroaromatic compound Bimetallic synergic effect |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《高等学校化学学报》浏览原始摘要信息 |
| 点击此处可从《高等学校化学学报》下载免费的PDF全文 |
|
