Next Article in Journal
Purification, Characterization and Antioxidant Activities in Vitro and in Vivo of the Polysaccharides from Boletus edulis Bull
Previous Article in Journal
Thermal Hazard Evaluation of Lauroyl Peroxide Mixed with Nitric Acid
Molecules 2012, 17(7), 8068-8078; doi:10.3390/molecules17078068
Communication

Application of Hydrogen Peroxide Encapsulated in Silica Xerogels to Oxidation Reactions

* ,
 and
Received: 13 May 2012; in revised form: 18 June 2012 / Accepted: 25 June 2012 / Published: 4 July 2012
(This article belongs to the Section Organic Synthesis)
Download PDF [269 KB, uploaded 18 June 2014]
Abstract: Hydrogen peroxide was encapsulated into a silica xerogel matrix by the sol-gel technique. The composite was tested as an oxidizing agent both under conventional and microwave conditions in a few model reactions: Noyori’s method of octanal and 2-octanol oxidation and cycloctene epoxidation in a 1,1,1-trifluoroethanol/Na2WO4 system. The results were compared with yields obtained for reactions with 30% H2O2 and urea-hydrogen peroxide (UHP) as oxidizing agents. It was found that the composite has activity similar to 30% H2O2 and has a several advantages over UHP such as the fact that silica and H2O are the only products of the composite decomposition or no contamination by urea or its derivatives occurs; the xerogel is easier to heated by microwave irradiation than UHP and could be used as both an oxidizing agent and as solid support for microwave assisted solvent-free oxidations.
Keywords: oxidation; epoxidation; microwave irradiation; silica xerogel; hydrogen peroxide; sol-gel; fluoroalcohols; urea-hydrogen peroxide oxidation; epoxidation; microwave irradiation; silica xerogel; hydrogen peroxide; sol-gel; fluoroalcohols; urea-hydrogen peroxide
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Export to BibTeX |
EndNote


MDPI and ACS Style

Bednarz, S.; Ryś, B.; Bogdał, D. Application of Hydrogen Peroxide Encapsulated in Silica Xerogels to Oxidation Reactions. Molecules 2012, 17, 8068-8078.

AMA Style

Bednarz S, Ryś B, Bogdał D. Application of Hydrogen Peroxide Encapsulated in Silica Xerogels to Oxidation Reactions. Molecules. 2012; 17(7):8068-8078.

Chicago/Turabian Style

Bednarz, Szczepan; Ryś, Barbara; Bogdał, Dariusz. 2012. "Application of Hydrogen Peroxide Encapsulated in Silica Xerogels to Oxidation Reactions." Molecules 17, no. 7: 8068-8078.


Molecules EISSN 1420-3049 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert