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Synfacts 2011(11): 1251-1251  
DOI: 10.1055/s-0031-1289245
Polymer-Supported Synthesis
© Georg Thieme Verlag Stuttgart ˙ New York

Silica-Supported Polyimidazolium Pd Catalysts for Suzuki-Miyaura Coupling

Contributor(s): Yasuhiro Uozumi, Yoichi M. A. Yamada, Aya Ohno
M. Gruttadauria*, L. F. Liotta, A. M. P. Salvo, F. Giacalone, V. LaParola, C. Aprile, R. Noto
Facultés Universitaires Notre-Dame de la Paix, Namur, Belgium; Università di Palermo and ISMN-CNR, Palermo, Italy
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Publication History

Publication Date:
19 October 2011 (online)

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Significance

Palladium nanoparticles (Pd NPs) supported on an amorphous silica gel and SBA-15 with a polyimidazolium network (SiO2-Pd-3 and SBA-15-Pd-3; loading of Pd: 10 wt%) were prepared and applied to the Suzuki-Miyaura coupling. Thus, the reaction of phenylboronic acid 4 with aryl bromides 5 gave the corresponding biaryls 6 at room temperature or 50 ˚C (SiO2-Pd-3: up to 97% yield; SBA-15-Pd-3: up to >95% yield).