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Phosphorus, Sulfur, and Silicon and the Related Elements Volume 184, 2009 - Issue 11
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Original Articles

Fe(HSO4)3 and Fe(HSO4)3/DMSO as Efficient, Heterogeneous, and Reusable Catalyst Systems for the Oxidative Coupling of Thiols

H. Eshghi Department of Chemistry, School of Sciences, Ferdowsi University of Mashhad, Mashhad, Iran
,
M. Bakavoli Department of Chemistry, School of Sciences, Ferdowsi University of Mashhad, Mashhad, Iran
,
H. Moradi Department of Chemistry, School of Sciences, Ferdowsi University of Mashhad, Mashhad, Iran
&
A. Davoodnia Department of Chemistry, School of Sciences, Islamic Azad University, Mashhad Branch, Mashhad, Iran
Pages 3110-3118 | Received 12 Sep 2008, Accepted 09 Dec 2008, Published online: 03 Nov 2009
 
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Abstract

Fe(HSO4)3 has been used as a heterogeneous, efficient, and recyclable catalyst in ethanol for the selective oxidation of thiols to their corresponding disulfides. The same results were obtained under identical conditions using catalytic amounts of Fe(HSO4)3 in the presence of DMSO. Different types of aliphatic, aromatic, and heteroaromatic thiols have been used in the reaction, and in all cases the products were obtained in good to excellent yields.

Notes

aIsolated yields.

b–eRefer to the recycling of catalyst in new subsequent runs.

aIsolated yields.

bAll reactions were carried out at room temperature.

cAll reactions were carried out under catalytic amounts of Fe(HSO4)3 in the presence of DMSO.

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