Acid catalysis of different supported heteropoly acids for a one-pot synthesis of β-acetamido ketones

被引:37
|
作者
Rafiee, E. [1 ,2 ]
Paknezhad, F. [1 ]
Shahebrahimi, Sh. [1 ]
Joshaghani, M. [1 ,2 ]
Eavani, S. [1 ]
Rashidzadeh, S. [1 ]
机构
[1] Razi Univ, Dept Chem, Fac Sci, Kermanshah 67149, Iran
[2] Kermanshah Oil Refining Co, Kermanshah, Iran
关键词
Dakin-West reaction; heterogeneous catalyst; supported heteropoly acid; multi-component reaction; beta-acetamido ketone;
D O I
10.1016/j.molcata.2007.11.021
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The production of P-acetamido ketones from aldehydes, ketones and acetyl chloride in acetonitrile over supported heteropoly acids has been examined. This study reports the use of heteropoly acids (HPAs) supported on metal oxides (SiO2, Al2O3, K 10 and KSF montmorillonite) and activated carbon as efficient and reusable catalysts, and their comparison with other catalysts in Dakin-West reaction. Dodecatungstophosphoric acid supported on KSF and gamma-Al2O3 shows the best results and reusability. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码:92 / 98
页数:7
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