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

所屬欄目:有機合成原料

Keggin結構鉬釩磷雜多化合物催化氧化乙苯合成苯乙酮
李家其1,2,郭 軍1,尹篤林2 (1. 湖南人文科技學(xué)院 化學(xué)與材料科學(xué)系 湖南 婁底417000;2. 湖南師范大學(xué) 化學(xué)化工學(xué)院,湖南 長(cháng)沙410081)
摘 要:合成了一系列具有Keggin結構的鉬釩磷酸銨雜多化合物,并以它們作催化劑、過(guò)氧化氫為氧化劑催化乙苯氧化合成苯乙酮。研究發(fā)現,在該反應中,催化劑具有較好的催化性能,且雜多化合物的釩原子數增加,其催化氧化活性增強,在優(yōu)化條件下,乙苯轉化率達81.7%,苯乙酮選擇性為100%。
關(guān)鍵詞:雜多化合物;催化;氧化;乙苯
中圖分類(lèi)號:O611.66  文獻標識碼:A  文章編號: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
基金項目:湖南省教育廳科學(xué)研究基金資助項目(05C757)。
作者簡(jiǎn)介:李家其(1965-),男,湖南漣源人,副教授,博士研究生,主要從事有機催化合成研究。(E-mail:lijiaqi82@126.com)
收稿日期:2006-08-23
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