Volume 33, Issue 7 pp. 705-710
Communication

PEG Click-Triazole Palladacycle: An Efficient Precatalyst for Palladium-Catalyzed Suzuki-Miyaura and Copper-free Sonogashira Reactions in Neat Water

Guofu Zhang

Guofu Zhang

College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China

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Wei Zhang

Wei Zhang

College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China

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Yuxin Luan

Yuxin Luan

College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China

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Xingwang Han

Xingwang Han

College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China

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Chengrong Ding

Corresponding Author

Chengrong Ding

College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China

College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China, Tel.: 0086-0571-88320147; Fax: 0086-0571-88320147Search for more papers by this author
First published: 02 June 2015
Citations: 15

Abstract

A novel water-soluble, phosphine-free PEG "click" triazole palladacycle has been successfully synthesized. As a precatalyst, the palladacycle exhibited superior catalytic activity towards Suzuki-Miyaura and copper-free Sonogashira cross-coupling in neat water with the turnover numbers (TONs) of up to 9.8×105. In addition, the catalyst could be reused at least 3 times without significant loss of reactivity.

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