Activation of Aromatic C−C Bonds of 2,2’‐Bipyridine Ligands |
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| Authors: | Sergio Fombona Dr Maialen Espinal‐Viguri Dr Miguel A Huertos Dr Jesús Díaz Dr Ramón López Dr M Isabel Menéndez Dr Julio Pérez Dr Lucía Riera |
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| Affiliation: | 1. Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo, Oviedo, Spain;2. Departamento de Química Orgánica e Inorgánica, Universidad de Extremadura, Cáceres, Spain;3. Departamento de Química Física y Analítica, Universidad de Oviedo, Oviedo, Spain;4. Centro de Investigación en Nanomateriales y Nanotecnología-CINN, CSIC-Universidad de Oviedo-Principado de Asturias, El Entrego, Spain |
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| Abstract: | 4,4’‐Disubstituted‐2,2′‐bipyridine ligands coordinated to MoII and ReI cationic fragments become dearomatized by an intramolecular nucleophilic attack from a deprotonated N‐alkylimidazole ligand in cis disposition. The subsequent protonation of these neutral complexes takes place on a pyridine carbon atom rather than at nitrogen, weakening an aromatic C?C bond and affording a dihydropyridyl moiety. Computational calculations allowed for the rationalization of the formation of the experimentally obtained products over other plausible alternatives. |
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| Keywords: | C− C coupling density functional calculations molybdenum pyridine activation rhenium |
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