第 37 卷第 1 期Vol. 37 No. 1
2007 年 2 月Feb 2007

所属栏目:有机合成原料

Keggin结构钼钒磷杂多化合物催化氧化乙苯合成苯乙酮
李家其1,2,郭 军1,尹笃林2 (1. 湖南人文科技学院 化学与材料科学系 湖南 娄底417000;2. 湖南师范大学 化学化工学院,湖南 长沙410081)
摘 要:合成了一系列具有Keggin结构的钼钒磷酸铵杂多化合物,并以它们作催化剂、过氧化氢为氧化剂催化乙苯氧化合成苯乙酮。研究发现,在该反应中,催化剂具有较好的催化性能,且杂多化合物的钒原子数增加,其催化氧化活性增强,在优化条件下,乙苯转化率达81.7%,苯乙酮选择性为100%。
关键词:杂多化合物;催化;氧化;乙苯
中图分类号:O611.66  文献标识码:A  文章编号:1009-9212(2007)01- 0055 - 03
Catalytic Oxidation of Ethylbenzene to Acetophenone by Molybdovanadophosphoric Heteropoly Compounds with Keggin Structure
LI Jia-qi1,2,GUO Jun1,YIN Du-lin2 (1. Department of Chemistry and Materials Science,Hunan Humanities Science and Technology College,Hunan Loudi 417000,China;2. College of Chemistry and Chemical Engineering,Hunan Normal University,Changsha 410081,China;)
Abstract:A series of ammonium molybdovanadophosphate heteropoly compounds with Keggin structure were synthesized,and then were used to catalyze the oxidation of ethylbenzene to acetophenone with hydrogen peroxide as oxidant. The results indicated that the catalysts had an excellent catalytic activity for the reaction and the catalytic activities of the heteropoly compounds were greatly enhanced by increasing amounts of vanadium. Conversion of ethylbenzene was 81.7% and selectivity of acetophenone was 100% under the optimum conditions.
Key words:heteropoly conpound;catalyst;oxidation;ethylbenzene
基金项目:湖南省教育厅科学研究基金资助项目(05C757)。
作者简介:李家其(1965-),男,湖南涟源人,副教授,博士研究生,主要从事有机催化合成研究。(E-mail:lijiaqi82@126.com)
收稿日期:2006-08-23
阅读全文