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Vol. 23 No. 11 (2011): Vol 23 Issue 11

Oxidation of Phenol by Two Tetraazamacrocyclic Cu(II) Complexes Catalysts

Jian-Hong Bi
Deparment of Chemistry and Chemical Engineering, Hefei Normal University, Hefei, P.R. China
Fu-Hou Yao
Deparment of Chemistry and Chemical Engineering, Hefei Normal University, Hefei, P.R. China
Nai-Liang Hu
School of Chemistry and Chemical Engineering, Anhui University, Hefei 230039, P.R. China

Asian Journal of Chemistry, Vol. 23 No. 11 (2011): Vol 23 Issue 11

Abstract

The catalytic oxidation of phenol to hydroquinone and catechol was performed in the presence of the two tetraazamacrocyclic copper(II) complexes of CuL1(ClO4)2 and CuL2(ClO4)2 using H2O2 as oxidant and DMF as solvent. When the CuL1(ClO4)2 and CuL2(ClO4)2 were used as catalysts, 31.4 % phenol conversion was obtained with 48.1 % selectivity to diphenol and 29.9 % phenol conversion was obtained with 43.4 % selectivity to diphenol in the optimal reaction conditions.

Keywords

Tetraazamacrocycle Catalyst Copper(II) complexes Phenol Dihydroxybenzene
(1)
Bi, J.-H.; Yao, F.-H.; Hu, N.-L. Oxidation of Phenol by Two Tetraazamacrocyclic Cu(II) Complexes Catalysts. ajc 2011, 23, 5183-5184.
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