期刊
TETRAHEDRON LETTERS
卷 45, 期 38, 页码 7057-7059出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2004.07.126
关键词
Pd; nanomaterial; sol-gel process; catalysts; hydrogenation; C-C coupling reactions
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. (C) 2004 Elsevier Ltd. All rights reserved.
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