Synthesis of a Pyrazol-3-ylidene Palladium Complex, Pyrazolium Salts and Mesomeric Betaines of Pyrazole as N-Heterocyclic Carbene Precursors

Synthesis of a Pyrazol-3-ylidene Palladium Complex, Pyrazolium Salts and Mesomeric Betaines of Pyrazole as N-Heterocyclic Carbene Precursors

The synthesis of a pyrazol-3-ylidene palladium complex is described, and results of a single-crystal X-ray diffraction study are presented. The properties of pyrazolium salts as well as of two types of heterocyclic mesomeric betaines, the pseudo-cross-conjugated mesomeric betaine pyrazolium-3- carbo...

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Veröffentlicht in:Zeitschrift für Naturforschung. B, A journal of chemical sciences A journal of chemical sciences, 2012-04, Vol.67 (4), p.359-366
Hauptverfasser: Dreger, Andrij, Nieger, Martin, Drafz, Martin, Schmidt, Andreas
Format: Artikel
Sprache:eng
Schlagworte:
CCMB
Decarboxylation
NHC
NHC Complex
PCCMB
Pyrazol-4-ylidene
X-Ray Structure
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Zusammenfassung:The synthesis of a pyrazol-3-ylidene palladium complex is described, and results of a single-crystal X-ray diffraction study are presented. The properties of pyrazolium salts as well as of two types of heterocyclic mesomeric betaines, the pseudo-cross-conjugated mesomeric betaine pyrazolium-3- carboxylate and its cross-conjugated analog pyrazolium-4-carboxylate, are compared.
ISSN:0932-0776
1865-7117
DOI:10.1515/znb-2012-0410