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|Title:||Facile synthesis of nitrogen tetradentate ligands and their applications in Cu(I)-catalyzed N-arylation and azide-alkyne cycloaddition.|
|Authors:||Li, F. |
|Citation:||Li, F.,Hor, T.S. (2009-10-12). Facile synthesis of nitrogen tetradentate ligands and their applications in Cu(I)-catalyzed N-arylation and azide-alkyne cycloaddition.. Chemistry (Weinheim an der Bergstrasse, Germany) 15 (40) : 10585-10592. ScholarBank@NUS Repository.|
|Abstract:||Five new tetradentate ligands [NNNN] with benzimidazolyl-imine or amine nitrogen donors have been synthesized in good yields under mild conditions from easily available substrates. trans-N,N'-bis(1-Ethyl-2-benzimidazolylmethylene)cyclohexane-1,2-diimine is the best accelerating ligand in this series that supports the Cu(I)-catalyzed Ullmann N-arylation and the direct three-component azide-alkyne cycloaddition reaction to give the corresponding substituted imidazole, pyrazole, and triazole in high yields. Single-crystal X-ray diffraction analysis of its complex with CuI reveals a novel one-dimensional coordination polymer of the metal chain bridged alternately by the [NNNN] ligand and diiodides.|
|Source Title:||Chemistry (Weinheim an der Bergstrasse, Germany)|
|Appears in Collections:||Staff Publications|
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