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Catalytic activity of tetravalent metal phosphates and phosphonates on the oxidation of (+)-3-carene

Paper ID Volume ID Publish Year Pages File Format Full-Text
42946 45948 2009 7 PDF Available
Title
Catalytic activity of tetravalent metal phosphates and phosphonates on the oxidation of (+)-3-carene
Abstract

Tetravalent metal phosphates and phosphonates form highly insoluble inorganic polymers and can act as good catalysts in some oxidative reactions. In the present work, zirconium phosphate amorphous (ZrPA), scandium exchanged zirconium phosphate amorphous (ScZrPA), sodium exchanged zirconium phosphate amorphous (NaZrPA), potassium exchanged zirconium phosphate amorphous (KZrPA), zirconium phenylphosphonate amorphous (ZrPPA) and zirconium phenylphosphonate phosphate amorphous (ZrPA/ZrPPA), were prepared and evaluated as catalysts for the oxidation of 3,7,7-trimethylbicyclo[4.1.0]hept-3-ene [(+)-3-carene)] by hydrogen peroxide, in different solvents. It was found that the oxidation reaction of (+)-3-carene yielded three major products, namely α-3,4-epoxycarane, carane-3β,4α-diol and 3β-acetoxycaran-4α-ol, depending on the catalyst and solvent conditions. No β-3,4-epoxycarane was detected in the studied conditions.

Graphical abstractZirconium phosphate amorphous (ZrPA), scandium exchanged zirconium phosphate amorphous (ScZrPA), sodium exchanged zirconium phosphate amorphous (NaZrPA), potassium exchanged zirconium phosphate amorphous (KZrPA), zirconium phenylphosphonate amorphous (ZrPPA) and zirconium phenylphosphonate phosphate amorphous (ZrPA/ZrPPA), were prepared and evaluated as catalysts for the oxidation of 3,7,7-trimethylbicyclo[4.1.0]hept-3-ene [(+)-3-carene)] by hydrogen peroxide, in different solvents.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
(+)-3-Carene; Oxidation; Tetravalent metal phosphates and phosphonates; Catalysis; Hydrogen peroxide
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Catalytic activity of tetravalent metal phosphates and phosphonates on the oxidation of (+)-3-carene
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 353, Issue 2, 1 February 2009, Pages 236–242
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
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