Organic-inorganic hybrid polyoxometalates: Efficient, heterogeneous and reusable catalysts for solvent-free synthesis of azlactones

被引：42
作者：
Rostami, Mahbubeh [1 ]
Khosropour, Ahmadreza [1 ]
Mirkhani, Valiollah [1 ]
Moghadam, Majid [1 ]
Tangestaninejad, Shahram [1 ]
Mohammadpoor-Baltork, Iraj [1 ]
机构：
[1] Univ Isfahan, Catalysis Div, Dept Chem, Esfahan 8174673441, Iran
来源：
APPLIED CATALYSIS A-GENERAL | 2011年 / 397卷 / 1-2期
关键词：
Hybrid polyoxometalate; Heterogeneous catalysts; Azlactone; Solvent-free; IONIC LIQUID; 12-PHOSPHOTUNGSTIC ACID; 4-ARYLIDENE-2-PHENYL-5(4H)-OXAZOLONES; ACETATE; ANION; SALT;
D O I：
10.1016/j.apcata.2011.02.004
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：
Two organic-inorganic hybrid polyoxometalates, consist of 1-butyl-3-methylimidazolium salts of (W10O32)(4-) and (RW12O40)(3-) polyanions were prepared and characterized by thermal analysis, X-ray diffraction, FT-IR, diffuse reflectance UV-Vis spectroscopic methods and nitrogen absorption-desorption determination (BET). These heterogeneous catalysts were used for synthesis of azlactones by the reaction of aldehydes with hippuric acid and acetic anhydride under solvent-free conditions. These catalysts were reused several times without loss of their activities. (C) 2011 Elsevier B.V. All rights reserved.
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收藏
页码：27 / 34
页数：8
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