Carbon-carbon and carbon-nitrogen coupling reactions catalyzed by palladium nanoparticles derived from a palladium substituted Keggin-type polyoxometalate |
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| Authors: | Kogan Vladimir Aizenshtat Zeev Popovitz-Biro Ronit Neumann Ronny |
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| Affiliation: | Department of Organic Chemistry, The Hebrew University of Jerusalem, Jerusalem, Israel 91904. |
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| Abstract: | Palladium 15-20 nm particles stabilized by a Keggin-type polyoxometalate were prepared by reduction of K(5)PPdW(11)O(39) with H(2). The nanoparticles were shown to be effective catalysts for Suzuki-, Heck-, and Stille-type carbon-carbon coupling and carbon-nitrogen coupling reactions of bromoarenes in aqueous media. Chloroarenes were also reactive in reaction media without solvent. [reaction: see text] |
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