One-pot synthesis of recyclable palladium catalysts for hydrogenations and carbon-carbon coupling reactions |
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Authors: | Namdu Kim |
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Institution: | Center for Integrated Molecular System, Department of Chemistry, Division of Molecular and Life Science, Pohang University of Science and Technology (POSTECH), San 31 Hyoja Dong, Pohang 790-784, Republic of Korea |
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Abstract: | Palladium nanoparticles were generated from tetrakis(triphenylphophine)palladium in a mixture of tetra(ethylene glycol) and tetramethoxysilane (or titanium(IV) isopropoxide), then encapsulated in silica matrix (or titania matrix) by the treatment with water. The resulting heterogeneous material showed high catalytic activity in the hydrogenations of various alkene and alkynes and in the carbon-carbon cross-coupling reactions such as the Suzuki-Miyaura, the Sonogashira, the Heck-Mizoroki, and the Stille reactions. |
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Keywords: | Pd Nanomaterial Sol-gel process Catalysts Hydrogenation C-C coupling reactions |
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