Article ID Journal Published Year Pages File Type
1233469 Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 2014 7 Pages PDF
Abstract

•Iron(III)–oxazoline complex is applied in oxidation of sulfides.•Urea hydrogen peroxide (UHP) as oxidant.•Excellent yield and selectivity has been achieved.

A five-coordinated Fe(III) complex with the distorted trigonal bipyramidal configuration was synthesized by reactions of FeCl3⋅6H2O and 2-(2′-hydroxyphenyl)oxazoline (Hphox) as a bidentate ON donor oxazoline ligand. Complex [Fe(phox)2Cl] was fully characterized, including by single-crystal X-ray structure analysis. DFT calculations were accompanied with experimental results in order to obtain a deeper insight into the electronic structure and vibrational normal modes of complex. Oxidation of sulfides to sulfoxides in one-step was conducted by this complex as catalyst using urea hydrogen peroxide (UHP) in mixture of CH2Cl2/CH3OH (1:1) under air at room temperature. The results show that using this system in oxidation of sulfides, sulfoxides are obtained as the main products, together with variable amounts of sulfones (⩽13%), depending on the nature of the substrate.

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Related Topics
Physical Sciences and Engineering Chemistry Analytical Chemistry
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