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Isomerization of styrene oxide to phenylacetaldehyde over supported phosphotungstic heteropoly acid

Paper ID Volume ID Publish Year Pages File Format Full-Text
42017 45907 2010 4 PDF Available
Title
Isomerization of styrene oxide to phenylacetaldehyde over supported phosphotungstic heteropoly acid
Abstract

Silica-supported H3PW12O40 (PW), the strongest heteropoly acid in the Keggin series, is an efficient, environmentally friendly heterogeneous catalyst for the liquid-phase isomerization of styrene oxide into phenylacetaldehyde, an industrially important intermediate for fine chemical synthesis. The reaction occurs in cyclohexane as a solvent under mild conditions at 25–70 °C with low catalyst loadings and without PW leaching in solution. At 60 °C, the yield of phenylacetaldehyde reaches 92% at 97% styrene oxide conversion, with a catalyst turnover number of 19 600. The catalyst can be recovered and reused.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (36 K)Download as PowerPoint slideResearch highlights▶ The liquid-phase conversion of styrene oxide into phenylacetaldehyde was studied. ▶ Phenylacetaldehyde is an important intermediate in the production of fine chemicals. ▶ H3PW12O40/SiO2 was found to be an active and environmentally friendly catalyst. ▶ A 92% yield was obtained with a catalyst turnover number of 19 600. ▶ The catalyst does not undergo leaching and can be recovered and reused.

Keywords
Isomerization; Styrene oxide; Phenylacetaldehyde; Acid catalysis; Heteropoly acid
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Isomerization of styrene oxide to phenylacetaldehyde over supported phosphotungstic heteropoly acid
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 383, Issues 1–2, 31 July 2010, Pages 217–220
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