Evidence for an Equilibrium between an N-heterocyclic Carbene and Its Dimer in Solution

Evidence for an Equilibrium between an N-heterocyclic Carbene and Its Dimer in Solution

Evidence for the Wanzlick equilibrium between carbene 1 and dibenzotetraazafulvalene (1)2 at ambient temperature has been found (see scheme). Enetetramines of type (1)2 can also be cleaved by coordinatively unsaturated transition metal compounds to form dicarbene complexes.

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Veröffentlicht in:Angewandte Chemie International Edition 2000-02, Vol.39 (3), p.541-544
Hauptverfasser: Hahn, F. Ekkehardt, Wittenbecher, Lars, Le Van, Duc, Fröhlich, Roland
Format: Artikel
Sprache:eng
Schlagworte:
carbene complexes
carbenes
equilibrium
structure elucidation
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Zusammenfassung:Evidence for the Wanzlick equilibrium between carbene 1 and dibenzotetraazafulvalene (1)2 at ambient temperature has been found (see scheme). Enetetramines of type (1)2 can also be cleaved by coordinatively unsaturated transition metal compounds to form dicarbene complexes.
ISSN:1433-7851
1521-3773
DOI:10.1002/(SICI)1521-3773(20000204)39:3<541::AID-ANIE541>3.0.CO;2-B