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Preyssler catalyst: An efficient catalyst for esterification of cinnamic acids with phenols and imidoalcohols

Paper ID Volume ID Publish Year Pages File Format Full-Text
42143 45912 2010 10 PDF Available
Title
Preyssler catalyst: An efficient catalyst for esterification of cinnamic acids with phenols and imidoalcohols
Abstract

In the present work a series of eco-friendly Preyssler solid acids and their salts H14[NaP5W29MoO110] (PW), H14[NaP5W30O110] (PWMo), K12.5Na1.5[NaP5W30O110]·15H2O (PWK), K12.5Na1.5[NaP5W29MoO110]·15H2O (PWMoK) and 10% silica-supported H14[NaP5W29MoO110] (PWSiO2), and H14[NaP5W30O110] (PWMoSiO2) have been used as catalysts for the direct esterification of cinnamic acids with phenols or 2-(N-phthalimidoethanol). Effects of the reaction conditions were studied, including temperature, reaction time, and type and amount of catalyst. These solids were characterized by several techniques, such as diffuse reflectance spectroscopy, Fourier transformed infrared spectroscopy, optical and scanning electron microcopies, and X-ray diffraction, among others.The most adequate catalyst for performing the title reaction was H14[NaP5W30O110] (PWMo). The catalyst was applied for the synthesis of various substituted cinnamates, giving very good yields.

Graphical abstractA series of eco-friendly Preyssler solid acids and their salts have been used as catalysts for the direct esterification of cinnamic acids with phenols or 2-(N-phthalimidoethanol). The catalysts were characterized by several techniques (DRS, FTIR, SEM, XRD, among others) and the effects of the reaction conditions were studied, including temperature, reaction time, and type and amount of catalyst.Figure optionsDownload full-size imageDownload high-quality image (36 K)Download as PowerPoint slide

Keywords
Acid catalysis; Cinnamates; Esterification; Heteropolyacid; Preyssler heteropolyacids
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Preyssler catalyst: An efficient catalyst for esterification of cinnamic acids with phenols and imidoalcohols
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 374, Issues 1–2, 1 February 2010, Pages 110–119
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
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Any Questions? feel free to contact us