Room Temperature Suzuki Reactions in Aqueous Media under Air by Palladium(ii) Complexes with Pyrazole Derived Ligands

Kai Xu; Xin-Qi Hao; Jun-Fang Gong; Mao-Ping Song; Yang-Jie Wu

doi:10.1071/CH09383

RESEARCH ARTICLE

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Room Temperature Suzuki Reactions in Aqueous Media under Air by Palladium(ii) Complexes with Pyrazole Derived Ligands

Kai Xu ^A , Xin-Qi Hao ^A , Jun-Fang Gong ^A ^B , Mao-Ping Song ^A ^B and Yang-Jie Wu ^A

+ Author Affiliations

- Author Affiliations

^A Department of Chemistry, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Zhengzhou University, Zhengzhou 450052, China.

^B Corresponding authors. Email: gongjf@zzu.edu.cn; mpsong9350@zzu.edu.cn

Australian Journal of Chemistry 63(2) 315-320 https://doi.org/10.1071/CH09383
Submitted: 14 July 2009 Accepted: 5 October 2009 Published: 26 February 2010

Abstract

Two new palladium complexes with pyrazole derived ligands 2a–2b have been easily prepared and well characterized by elemental analysis, ¹H NMR, ¹³C NMR, and IR spectra. Their detailed structures are determined by a single-crystal X-ray analysis of 2a. The two compounds were successfully applied to the Suzuki coupling reactions of aryl bromides with phenylboronic acid, in aqueous solution at room temperature under air, giving the desired coupled products in good to excellent yields with catalyst loadings as low as 0.01–0.05 mol-%.

Acknowledgements

We are grateful to the National Natural Science Foundation of China (20872133) and the Innovation Fund for Outstanding Scholar of Henan Province (074200510005) for financial support of this work.

References

Room Temperature Suzuki Reactions in Aqueous Media under Air by Palladium(ii) Complexes with Pyrazole Derived Ligands

Abstract

Acknowledgements

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