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Citation: HE Ying, CAI Chun. Polymer-supported Nano-palladium as Catalyst for Suzuki Cross-coupling Reaction in Water[J]. Chinese Journal of Applied Chemistry, ;2010, 27(7): 792-796. doi: 10.3724/SP.J.1095.2010.90653 shu

Polymer-supported Nano-palladium as Catalyst for Suzuki Cross-coupling Reaction in Water

HE Ying ,
CAI Chun

Chemical Engineering College, Nanjing University of Science & Technology, Nanjing 210094

Received Date: 9 October 2009
Revised Date: 15 January 2010

A new functional resin based on Wang resin was prepared to immobilize the palladium nanoparticles. The application of the supported catalyst in the Suzuki reaction between aryl halides and arylboronic acids in water was described. The influences of the reaction conditions,such as solvent,temperature,base and the amount of the catalyst were investigated with the reaction of bromobenzene and phenylboronic acid as the model. The optimal conditions were found to be:100℃,n(C₆H₅Br):n(C₆H₅B (OH)₂):n(WRP-Pd):n(K₂CO₃):n(TBAB)=1.0:1.5:0.005:2.0:0.5 and 4 h. The high yields were obtained through prolongating the reaction time when aromatic chlorides were used as substrates. The catalyst could be reused four times without significant loss in its activity by simple filtration and washing.
- polymer-supported catalyst,
- nano-palladium,
- Suzuki cross-coupling
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