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

Paper ID Volume ID Publish Year Pages File Format Full-Text
41702 45897 2011 8 PDF Available
Title
Organic–inorganic hybrid polyoxometalates: Efficient, heterogeneous and reusable catalysts for solvent-free synthesis of azlactones
Abstract

Two organic–inorganic hybrid polyoxometalates, consist of 1-butyl-3-methylimidazolium salts of (W10O32)4− and (PW12O40)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.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (80 K)Download as PowerPoint slideHighlights► Adding ionic liquid to H3PW12O40 and K4W10O32. ► Heterogeneous catalysts were prepared. ► These catalysts were active in the synthesis of azlactones. ► Makes the catalyst reusable.

Keywords
Hybrid polyoxometalate; Heterogeneous catalysts; Azlactone; Solvent-free
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Organic–inorganic hybrid polyoxometalates: Efficient, heterogeneous and reusable catalysts for solvent-free synthesis of azlactones
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 397, Issues 1–2, 30 April 2011, Pages 27–34
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us