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Synfacts 2008(8): 0882-0882  
DOI: 10.1055/s-2008-1077920
Polymer-Supported Synthesis
© Georg Thieme Verlag Stuttgart ˙ New York

Dendrimer-Stabilized Palladium Nanoparticles

Contributor(s): Yasuhiro Uozumi, Yoichi M. A. Yamada, Hidetoshi Ohta
L. Wu, Z.-W. Li, F. Zhang, Y.-M. He, Q.-H. Fan*
Institute of Chemistry, Chinese Academy of Sciences, Beijing, P. R. of China
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Publication History

Publication Date:
23 July 2008 (online)

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Significance

Dendrimer-stabilized palladium nanoparticles (GnDenP-Pd) were prepared by the reduction of [Pd(acac)2] with hydrogen in the presence of dendrimer phosphine ligands (GnDenP) in THF (eq. 1). GnDenP-Pd were applied to the Suzuki reaction of aryl halides with arylboronic acids (eq. 2), the Stille reaction of aryl halides with aryl-(tributyl)stannanes (eq. 3), and the hydrogenations of various unsaturated compounds (eq. 4) to give the corresponding products in 80-100% yields. G3DenP-Pd (0.001 mol% Pd) promoted the Suzuki reaction of bromobenzene with phenylboronic acid to give biphenyl in 65% yield (96 h) whose turnover number was 65,000.