Palladium mediated activation of C-F bonds in 2,4,6-trifluoropyrimidine: Synthesis and structure of palladium pyrimidyloxy and pyrimidinone derivatives |
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Authors: | Thomas Braun Verena Schorlemer Beate Neumann Hans-Georg Stammler |
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Affiliation: | Fakultät für Chemie, Universität Bielefeld, Postfach 100131, D-33501 Bielefeld, Germany |
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Abstract: | [PdMe2(dcpm)] (1) reacts with 2,4,6-trifluoropyrimidine in the presence of water to give the palladium derivative [PdMe{4-C4N2F2H(O)}(dcpm)] (2). When additional triethylamine is present complex [PdMe(2-OC4N2F2H)(dcpm)] (4) in addition to 2 is formed. Compound 2 converts slowly into the binuclear complex [Pd{4-C4N2F2H(O)}(μ-dcpm)]2 (5). The molecular structure of 5 was determined by X-ray crystallography. The palladium-palladium distance is 2.5898(3) Å. |
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Keywords: | Palladium Binuclear compounds Fluorinated heterocycles C-F activation |
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