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Synthesis and Catalytic Application of Palladium Pyrazolin-3-ylidene Complexes

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journal contribution
posted on 20.12.2004, 00:00 by Jan Schütz, Eberhardt Herdtweck, Wolfgang A. Herrmann
Oxidative addition of a 3-halo 1,2-disubstituted pyrazolium salt to a palladium(0) complex leads to the formation of the first reported palladium pyrazolin-3-ylidene complex. Comparison of the new system with the analogous imidazolin-2-ylidene complex in Heck catalysis shows higher yields for the new system by a factor of 2.

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