Facile Synthesis of Triptycene-Azolium Salts and NHC-Metal Complexes |
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| Authors: | M. Sc. Alexander Kaps Prof. Dr. Herbert Plenio |
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| Affiliation: | Organometallic Chemistry, Technical University of Darmstadt, Alarich-Weiss-Str. 12, 64287 Darmstadt, Germany |
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| Abstract: | The cycloaddition reactions of eleven substituted anthracenes with nosylated quinone imines provides a convenient route to the respective triptycenes. Following re-aromatization, selective O-butylation and cleavage of the nosyl-group the respective triptycene anilines are obtained, which are converted into the respective imidazolium salts according to established procedures. Deprotonation of the imidazolium salts provide new triptycene-NHC-metal complexes (M=AuCl, RhCl(cod), IrCl(cod), RhCl(CO)2, IrCl(CO)2, PdI2(py), PtCl2(py), Pd(allyl)Cl) with unusual ligand sterics. |
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| Keywords: | anthracene cycloaddition NHC ligands transition metals triptycene |
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