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

12 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

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

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