Publication: Influence of catalyst nuclearity on copper-catalyzed aerobic alcohol oxidation
Issued Date
2020-01-01
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ISSN
14779234
14779226
14779226
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2-s2.0-85078364183
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Mahidol University
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SCOPUS
Bibliographic Citation
Dalton Transactions. Vol.49, No.3 (2020), 682-689
Suggested Citation
Nuttaporn Krittametaporn, Teera Chantarojsiri, Arnut Virachotikul, Khamphee Phomphrai, Naoto Kuwamura, Tatsuhiro Kojima, Takumi Konno, Preeyanuch Sangtrirutnugul Influence of catalyst nuclearity on copper-catalyzed aerobic alcohol oxidation. Dalton Transactions. Vol.49, No.3 (2020), 682-689. doi:10.1039/c9dt03484f Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/53644
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Title
Influence of catalyst nuclearity on copper-catalyzed aerobic alcohol oxidation
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Abstract
This journal is © The Royal Society of Chemistry. Reactions of CuX with the bis(triazolyl) ligand Hbtm [bis(1-benzyl-1H-1,2,3-triazol-4-yl)phenylmethanol] in CH2Cl2 afforded trinuclear copper(ii) complexes with a core structure (μ-X)Cu3(μ-κ3-N,O,N-btm)3(L)2+ [X = Cl, L = CH3OH (1); X = Br, L = H2O (2)], while a similar reaction of [Cu(CH3CN)4](PF6) with the mono(triazolyl) ligand HPhtm [(1-benzyl-1H-1,2,3-triazol-4-yl)diphenylmethanol] resulted in the mononuclear complex [Cu(κ2-N,O-Phtm)(κ2-N,O-HPhtm)(κ1-N-HPhtm)][PF6] (3). The structural characterization of these complexes was made by single-crystal X-ray crystallography in combination with elemental and ESI mass analyses. Catalytic studies toward aerobic oxidation of benzyl alcohol to benzaldehyde revealed that the trinuclear 1 and 2 exhibited higher activities than the mononuclear 3 in both CH3CN and EtOH/H2O solvent systems.