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solvent-free-oxidation
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Oxidation of aromatic amines to quinones by iodic acid under microwave irradiation in the presence of montmorillonite k10 and silica gel
, Article Monatshefte fur Chemie ; Volume 134, Issue 12 , 2003 , Pages 1561-1563 ; 00269247 (ISSN) ; Akhbari, M ; Sharif University of Technology
2003
Abstract
A variety of aromatic amines are oxidized to their corresponding quinones in excellent yields by supported iodic acid under microwave irradiation and solvent free conditions
Solvent-free oxidation of cumene by molecular oxygen catalyzed by cobalt salen-type complexes
, Article Research on Chemical Intermediates ; Volume 38, Issue 3-5 , 2012 , Pages 871-883 ; 09226168 (ISSN) ; Ferdosi, S. R ; Tafazolian, H ; Sharif University of Technology
Abstract
Co(salen)-type [where salen = di-(salicylal)-ethylenediimine] complexes were shown to be efficient catalysts in the oxidation of 2-phenylpropane (cumene) by dioxygen primarily to 2-phenyl-2-propanol (cumyl alcohol), 2-phe-nylpropene (a-methylstyrene), and 1-phenylethanone (acetophenone) applying 1H NMR spectroscopy and gas chromatography-mass spectrometry (GC-MS). The effect of substitution on the ligand was also monitored in both oxygen-absorption and the catalytic reaction. Based on these results, the trend observed for the production of a-methylstyrene and cumyl alcohol were parallel to dioxygen uptake by the catalyst in neat cumene, while acetophenone productions obeyed a non-linear...