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

作　　者：Guofu Zhang Wei Zhang Yuxin Luan Xingwang Han Chengrong Ding 

机构地区：[1]College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China

出　　处：《Chinese Journal of Chemistry》2015年第7期705-710,共6页中国化学（英文版）

基　　金：We gratefully acknowledge the financial support from the National Natural Science Foundation of China （No. 20702051）, the Natural Science Foundation of Zhejiang Province （LY13B020017） and the Key Innovation Team of Science and Technology in Zhejiang Province （No. 2010R50018）.

摘　　要：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 × 10^5. In addition, the cata- lyst could be reused at least 3 times without significant loss of reactivity.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 × 10^5. In addition, the cata- lyst could be reused at least 3 times without significant loss of reactivity.

关 键 词：palladium cross-coupling PALLADACYCLE N-LIGANDS green chemistry 

分 类 号：O614.823[理学—无机化学] O643.36[理学—化学]