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- Title
Metal Complexes of Very Bulky N, N′-Diarylimidazolylidene N-Heterocyclic Carbene (NHC) Ligands with 2,4,6-Cycloalkyl Substituents.
- Authors
Savka, Roman; Plenio, Herbert
- Abstract
1,3,5-Tricycloalkylbenzene (cycloalkyl = C5H9, C6H11) was converted into the respective anilines (by means of nitration and reduction) and then into the corresponding diimines (with glyoxal), the cyclization of which with (HCHO) n/ZnCl2 provided the respective 1,3-bis(2,4,6-tricyclopentylphenyl)imidazolium salt in modest yields. An analogous reaction sequence that employed acenaphthene-1,2-dione instead of glyoxal yielded the two azolium salts in good yields, which were converted into the respective N-heterocyclic carbene (NHC) complexes [(NHC)AgCl], [(NHC)AuCl], [(NHC)RhCl(cod)] (cod = cyclooctadiene), and [(NHC)RhCl(CO)2].
- Subjects
CARBENES; LIGANDS (Chemistry); STERIC hindrance; TRANSITION metals; CYCLOALKYL group
- Publication
European Journal of Inorganic Chemistry, 2014, Vol 2014, Issue 36, p6246
- ISSN
1434-1948
- Publication type
Article
- DOI
10.1002/ejic.201402830