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A green and sustainable method for the oxidation of 1,3-dihydrobenzo[c]thiophenes to sulfones using metalloporphyrin complexes

Paper ID Volume ID Publish Year Pages File Format Full-Text
49430 46745 2014 4 PDF Available
Title
A green and sustainable method for the oxidation of 1,3-dihydrobenzo[c]thiophenes to sulfones using metalloporphyrin complexes
Abstract

•A green and sustainable approach for the oxidation of 1,3-dihydrobenzo[c]thiophenes.•Metalloporphyrins and hydrogen peroxide proved to be highly efficient at r.t..•Excellent conversions (99.9%) were observed, affording the corresponding sulfones.•For the iron(III) porphyrin the products precipitate directly in the reaction medium.

Two efficient methods are reported for the oxidation of 1,3-dihydrobenzo[c]thiophenes to sulfones in good to high yields using H2O2 in the presence of catalytic amounts of porphyrin-based catalysts in ethanol or acetonitrile as solvents at room temperature. The presence of electron-donating or electron-withdrawing groups, in the benzene ring of 1,3-dihydrobenzo[c]thiophene, is well tolerated.

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Keywords
Thiophenes; Oxidation; Catalysis; Metalloporphyrins; Hydrogen peroxide; Sulfones
First Page Preview
A green and sustainable method for the oxidation of 1,3-dihydrobenzo[c]thiophenes to sulfones using metalloporphyrin complexes
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 56, 5 November 2014, Pages 68–71
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis