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Urea- Hydrogen Peroxide (UHP) Oxidation of Thiols to the Corresponding Disulfides Promoted by Maleic Anhydride as Mediator
Molecules 2005, 10(11), 1364-1368; doi:10.3390/10111364

Alumina and Silica Oxides as Catalysts for the Oxidation of Benzoins to Benzils under Solvent-free Conditions

1,*  and 2
1 Department of Chemistry, Faculty of Science, Urmia University, 57159, Urmia, Iran 2 College of Chemistry, Isfahan University of Technology, 84156, Isfahan, Iran
* Author to whom correspondence should be addressed.
Received: 5 February 2005 / Accepted: 5 March 2005 / Published: 30 November 2005
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Alumina or silica gel are used as catalysts for a solvent-free oxidation of benzoins to the corresponding benzils. These catalysts are easily recovered after completion of the reactions, which are carried out either by heating in a sand bath or using microwave irradiation. Comparison of the results obtained with both catalysts indicates that all the reactants examined were oxidized faster on alumina than on silica under these conditions.
Keywords: Benzoins; benzils; biologically active compounds Benzoins; benzils; biologically active compounds
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Noroozi –Pesyan, N.; Dabbagh, A.H. Alumina and Silica Oxides as Catalysts for the Oxidation of Benzoins to Benzils under Solvent-free Conditions. Molecules 2005, 10, 1364-1368.

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