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Ruthenium Complexes with N-Bound 2-Pyridonato Ligand as O-Donors: A New Synthetic Approach and the Effect on Reactivity
Year: 2024
Type of publication: článek v odborném periodiku
Name of source: ChemPlusChem
Publisher name: Wiley-VCH
Place: Weinheim
Page from-to: e202300525
Titles:
Language Name Abstract Keywords
cze Ruthenté komplex s N-vázanou 2-Pyridonátovou skupinou jako O-Donory Byly připraveny Ru komplexy [(eta(6)-p-cymene)RuX(2-{(2,6-iPr(2)-C6H3)N=CH}-C5H3N-6-(O))] (3: X=Cl; 4: X=I) které byly připraveny pomocí eliminace MeX z iontových N,N-chelatovaných Ru komplexů [(eta(6)-p-cymene)RuX(kappa(2)-L-1)](X) (1: X=Cl; 2: X=I; L-1={2-[(2,6-iPr(2)-C6H3)N=CH]-6-(OMe)C5H3N}). Ruthenium; katalýza; pyridonátové ligandy
eng Ruthenium Complexes with N-Bound 2-Pyridonato Ligand as O-Donors: A New Synthetic Approach and the Effect on Reactivity In this study, Ru complexes [(eta(6)-p-cymene)RuX(2-{(2,6-iPr(2)-C6H3)N=CH}-C5H3N-6-(O))] (3: X=Cl; 4: X=I) were prepared with N-bound 2-pyridonato ligand by thermal base-free MeX elimination from ionic N,N-chelated Ru complexes [(eta(6)-p-cymene)RuX(kappa(2)-L-1)](X) (1: X=Cl; 2: X=I; L-1={2-[(2,6-iPr(2)-C6H3)N=CH]-6-(OMe)C5H3N}). The Ru complex 3 was used as O-donor for Lewis (LA) or Br & ouml;nsted acids. The reactions of 3 with SnCl2, Ph3SnCl, ZnCl2 or HCl provided [(eta(6)-p-cymene)Ru(SnCl3)(2-{(2,6-iPr(2)-C6H3)N=CH}-C5H3N-6-(O -> SnCl2)] (6), [(eta(6)-p-cymene)RuCl(2-{(2,6-iPr(2)-C6H3)N=CH}-C5H3N-6-(O -> SnPh3Cl)] (7), and [(eta(6)-p-cymene)RuCl(2-{(2,6-iPr(2)-C6H3)N=CH}-C5H3N-6-(O ->)](2)(mu-ZnCl2) (8) and [(eta(6)-p-cymene)RuCl(2-{(2,6-iPr(2)-C6H3)N=CH}-C5H3N-6-(OH)}](Cl) (9). The easy conversion of the 2-pyridonato ligand in 3 to its 2-hydroxypyridine in 9 evoked testing of 3 and 4 as potential catalysts in base-free transfer-hydrogenation of ketones. catalysis; coordination chemistry; pyridonato ligands; ruthenium; transfer-hydrogenation

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