期刊
CATALYSIS COMMUNICATIONS
卷 48, 期 -, 页码 69-72出版社
ELSEVIER
DOI: 10.1016/j.catcom.2014.01.024
关键词
Schiff base; Water-soluble copper(II) complex; Peroxidative oxidation of 1-phenylethanol; TEMPO; Microwave-assisted oxidation
资金
- Foundation for Science and Technology (FCT), Portugal [PTDC/EQU-EQU/122025/2010, PEst-OE/QUI/UI0100/2013]
- EPSRC (U.K.)
The water-soluble copper(II) complex [Cu(H2R)(HL)]center dot H2O (1) was prepared by reaction of copper(II) nitrate hydrate with (E)-2-(((1-hydroxynaphthalen-2-yl)methylene)amino) benzenesulfonic acid (H2L) and diethanolamine (H3R). It was characterized by IR and ESI-MS spectroscopies, elemental and X-ray crystal structural analyses. 1 shows a high catalytic activity for the solvent-free microwave (MW) assisted oxidation of 1-phenylethanol with tert-butylhydroperoxide, leading, in the presence of TEMPO, to yields up to 85% (TON = 850) in a remarkably short reaction time (15 min, with the corresponding TOE value of 3.40 x 10(3) h(-1)) under low power (25W) MW irradiation. Crown Copyright (C) 2014 Published by Elsevier B.V. All rights reserved.
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