4.5 Article

Preparation of Imines by Oxidative Coupling of Benzyl Alcohols with Amines Catalysed by Dicopper Complexes

Journal

EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
Volume 2013, Issue 23, Pages 5160-5164

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejoc.201300507

Keywords

Synthetic methods; Homogeneous catalysis; Oxidation; Dimetallic complexes; Copper; N ligands

Funding

  1. National Science Council, Taiwan [NSC-100-2113-M002-001-MY3]

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Complexation of 2,7-bis(2-pyridyl)-1,8-naphthyridine (bpnp) with Cu2O in formic acid under aerobic conditions provided a dicopper complex [Cu-2(bpnp)(-OH)(HCOO)(3)] (1). This complex has been characterized by X-ray crystallographic and spectroscopic analysis. With O-2 as the oxidant, complex 1 is an efficient catalyst for the oxidative coupling of alcohols with amines or diamines, leading to the corresponding imines or diimines in good to excellent yields.

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