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Citation: Baofeng Han, Xiao Xiao, Lan Wang, Wenjing Ye, Xiaoping Liu. Highly active binuclear Cu(Ⅱ) catalyst bearing an unsymmetrical bipyridine-pyrazole-amine ligand for the azide-alkyne cycloaddition reaction[J]. Chinese Journal of Catalysis, ;2016, 37(9): 1446-1450. doi: 10.1016/S1872-2067(15)61121-4 shu

Highly active binuclear Cu(Ⅱ) catalyst bearing an unsymmetrical bipyridine-pyrazole-amine ligand for the azide-alkyne cycloaddition reaction

Key Laboratory of Structure-Based Drug Design and Discovery(Shenyang Pharmaceutical University), Ministry of Education, Shenyang 110016, Liaoning, China

Received Date: 12 March 2016
Revised Date: 18 April 2016

Fund Project: This work was supported by the China Postdoctoral Science Foundation(2013M541254), the National Natural Science Foundation of China(21502120), the Program for Innovative Research Team of the Ministry of Education and the Program for Liaoning Innovative Research Team in University.

Ligands containing NH groups often show special characteristics. In this paper, a well-defined dinuclear Cu(Ⅱ) complex bearing an unsymmetrical bipyridine-pyrazole-amine ligand was synthesized by the condensation of N-H to release H₂O. Using sodium L-ascorbate as a reductant, the binuclear complex showed excellent activity in 1,3-dipolar cycloaddition reactions between alkynes and azides to obtain 1,4-disubstituted triazoles in 95%-99% isolated yields.
- N-heterocycle ligand,
- Cu complex,
- 1,3-Dipolar cycloaddition,
- Alkynes,
- Azides
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