Oxidation of organosulfur compounds using an iron(III) porphyrin complex: An environmentally safe and efficient approach
authors Pires, SMG; Simoes, MMQ; Santos, ICMS; Rebelo, SLH; Paz, FAA; Neves, MGPMS; Cavaleiro, JAS
nationality International
journal APPLIED CATALYSIS B-ENVIRONMENTAL
author keywords Iron; Porphyrins; Oxidation; Organosulfur compounds; Hydrogen peroxide
keywords HYDROGEN-PEROXIDE; MANGANESE(III) PORPHYRINS; AMMONIUM ACETATE; DESULFURIZATION; METALLOPORPHYRINS; EPOXIDATION; SULFOXIDES; CHEMISTRY; CATALYSTS; SULFIDES
abstract Following our approach on the use of metalloporphyrins as catalysts and hydrogen peroxide as oxidant in the oxidation of organosulfur compounds (e.g. sulfides, benzothiophenes and dibenzothiophenes), herein the excellent catalytic performance of a homogeneous iron(III) porphyrin complex is demonstrated. Beyond the better results obtained, when compared with those with manganese(III) complexes, the present procedure involves a cleaner approach because ethanol is used as solvent and a co-catalyst is not required. For all the studied substrates (1-10), conversions higher than 95% were achieved with Fe(TF4NMe2PP)Cl (I). More significantly, catalyst (I) is also efficient in the oxidation of a model fuel, constituted by a mixture of benzothiophene (3), 3-methylbenzothiophene (5), 4-methyldibenzothiophene (8) and 4,6-diethyldibenzothiophene (10) in hexane, affording an overall conversion of 84%. (C) 2014 Elsevier B.V. All rights reserved.
publisher ELSEVIER SCIENCE BV
issn 0926-3373
year published 2014
volume 160
beginning page 80
ending page 88
digital object identifier (doi) 10.1016/j.apcatb.2014.05.003
web of science category Chemistry, Physical; Engineering, Environmental; Engineering, Chemical
subject category Chemistry; Engineering
unique article identifier WOS:000340687900009
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journal impact factor 16.683
5 year journal impact factor 14.443
category normalized journal impact factor percentile 97.53
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