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Título

C-C coupling of N-heterocycles at the fac-re(CO)3 fragment: synthesis of pyridylimidazole and bipyridine ligands

AutorEspinal Viguri, Maialen; Pérez, Julio ; Riera, Lucía
Palabras claveImidazoles
Organometallic compounds
Pyridines
Rhenium
CC coupling
Fecha de publicación2014
EditorWiley-VCH
CitaciónChemistry - A European Journal 20(19): 5732-5740 (2014)
ResumenA new family of cationic rhenium tricarbonyl complexes with either two N-alkylimidazole (N-RIm) and one pyridine (Py) ligand, or two pyridine and one N-RIm ligand, [Re(CO)3(N-RIm)(3-x)(Py)x] +, has been prepared. The reaction of these complexes with a strong base, followed by an oxidant, selectively afforded 2,2'-pyridylimidazole complexes as the result of intramolecular dehydrogenative C-C coupling reactions. For tris(pyridine) complexes [Re(CO)3(Py) 3]+ the reaction pattern upon a deprotonation/oxidation sequence is maintained, which allows the generation of complexes with 2,2'-bipyridine ligands. In the particular combination of two different types of pyridine ligand in the cationic fac-Re(CO)3 complexes only the cross-coupling products with asymmetric 2,2'-bipyridine ligands were obtained; the homocoupling products were not observed.
URIhttp://hdl.handle.net/10261/112990
DOI10.1002/chem.201400155
Identificadoresdoi: 10.1002/chem.201400155
issn: 0947-6539
e-issn: 1521-3765
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