Aerobic oxidative coupling of 2-naphthol derivatives catalyzed by a hexanuclear bis(μ-hydroxo)copper(II) catalyst

Yedukondalu Meesala, Hsyueh Liang Wu, Bommisetti Koteswararao, Ting Shen Kuo, Way Zen Lee

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

A novel hexanuclear bis(μ-hydroxo)copper(II) complex, [L3(Cu2(μ-OH)2)3](ClO4)6 (1), was synthesized with dinucleating ligand N,N,N,N-tetra(pyridin-2-ylmethyl)-m-xylene diamine (L). Complex 1 is fully characterized by X-ray crystallography and magnetic susceptibility in the solid state and UV-vis and electron paramagnetic resonance spectroscopy in solution. The molecular structure of 1 possesses three dicopper cores, in which two copper centers are bridged by two hydroxide groups and separated by a distance ranging from 2.8852(15) to 2.8937(10) Å. In addition, the three dicopper cores are linked by the dinucleating ligand between each pair of adjacent dicopper cores. Importantly, aerobic oxidative coupling of 2,4-di-tert-butylphenol, 2-naphthol, and six 2-naphthol derivatives was achieved in 33-96% yield using complex 1 as a catalyst.

Original languageEnglish
Pages (from-to)4385-4393
Number of pages9
JournalOrganometallics
Volume33
Issue number17
DOIs
Publication statusPublished - 2014 Sep 8

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2,4-di-tert-butylphenol
Copper
Ligands
Derivatives
catalysts
copper
Catalysts
Diamines
X ray crystallography
Magnetic susceptibility
Molecular structure
magnetic permeability
Paramagnetic resonance
ligands
Spectroscopy
xylene
diamines
hydroxides
crystallography
electron paramagnetic resonance

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

Cite this

Aerobic oxidative coupling of 2-naphthol derivatives catalyzed by a hexanuclear bis(μ-hydroxo)copper(II) catalyst. / Meesala, Yedukondalu; Wu, Hsyueh Liang; Koteswararao, Bommisetti; Kuo, Ting Shen; Lee, Way Zen.

In: Organometallics, Vol. 33, No. 17, 08.09.2014, p. 4385-4393.

Research output: Contribution to journalArticle

Meesala, Yedukondalu ; Wu, Hsyueh Liang ; Koteswararao, Bommisetti ; Kuo, Ting Shen ; Lee, Way Zen. / Aerobic oxidative coupling of 2-naphthol derivatives catalyzed by a hexanuclear bis(μ-hydroxo)copper(II) catalyst. In: Organometallics. 2014 ; Vol. 33, No. 17. pp. 4385-4393.
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