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Synfacts 2010(12): 1433-1433  
DOI: 10.1055/s-0030-1258914
Polymer-Supported Synthesis
© Georg Thieme Verlag Stuttgart ˙ New York

Palladium Nanoparticles in Silica Hollow Spheres with Mesoporous Walls

Contributor(s): Yasuhiro Uozumi, Yoichi M.A. Yamada, Chung Keun Jin
Z. Chen, Z.-M. Cui, F. Niu, L. Jiang, W.-G. Song*
Institute of Chemistry, Chinese Academy of Sciences and Beihang University, Beijing, P. R. of China
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Publication History

Publication Date:
22 November 2010 (online)

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Significance

Pd@meso-SiO2 nanoreactor 4, where palladium nanoparticles were installed in silica hollow sphere with mesoporous walls, was developed and applied in the Suzuki coupling. Thus, 4 was prepared via loading of palladium nanoparticles on carbon nanosphere 1, followed by treatment with TEOS and CTAB, and calcination (three steps). Catalyst 4 was used in the Suzuki-Miyaura coupling of 5a-d and 6a-c to ­afford the corresponding biphenyls 7aa-dc in 50-99% yields (6 examples).