Publication Type Journal Article
Title Cu(II) and Fe(III) Complexes Derived from N-Acetylpyrazine-2-Carbohydrazide as Efficient Catalysts Towards Neat Microwave Assisted Oxidation of Alcohols
Authors Manas Sutradhar Tannistha Roy Barman Armando J.L. Pombeiro L.M.D.R.S. Martins
Groups CCC
Journal CATALYSTS
Year 2019
Month December
Volume 9
Number 12
Pages
Abstract The mononuclear Cu(II) complex [Cu((kNN O-HL)(H2O)(2)] (1) was synthesized using N-acetylpyrazine-2-carbohydrazide (H2L) and characterized by elemental analysis, IR spectroscopy, ESI-MS and single crystal X-ray crystallography. Two Fe(III) complexes derived from the same ligand viz, mononuclear [Fe((kNN O-HL)Cl-2] (2) and the binuclear [Fe(kNN O-HL)Cl(mu-OMe)](2) (3) (synthesized as reported earlier), were also used in this study. The catalytic activity of these three complexes (1-3) was examined towards the oxidation of alcohols using tert-butyl hydroperoxide (TBHP) as oxidising agent under solvent-free microwave irradiation conditions. Primary and secondary benzyl alcohols (benzyl alcohol and 1-phenylethanol), and secondary aliphatic alcohols (cyclohexanol) were used as model substrates for this study. A comparison of their catalytic efficiency was performed. Complex 1 exhibited the highest activity in the presence of TEMPO as promoter for the oxidation of 1-phenylethanol with a maximum yield of 91.3\% of acetophenone.
DOI http://dx.doi.org/10.3390/catal9121053
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Publisher
Book Title
ISSN
EISSN 2073-4344
Conference Name
Bibtex ID ISI:000507336600082
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