Dehydrative coupling of alcohols by Iridium(III) complexes with N-Heterocyclic-Pyridine chelating ligands decorated with Naphthalene-Diimide
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Títol
Dehydrative coupling of alcohols by Iridium(III) complexes with N-Heterocyclic-Pyridine chelating ligands decorated with Naphthalene-DiimideData de publicació
2023-05-25Editor
American Chemical SocietyISSN
0276-7333; 1520-6041Cita bibliogràfica
Gutiérrez-Peña, C., Poyatos, M., & Peris, E. (2023). Dehydrative Coupling of Alcohols by Iridium (III) Complexes with N-Heterocyclic-Pyridine Chelating Ligands Decorated with Naphthalene-Diimide. Organometallics 42 (13), 1487-1494Tipus de document
info:eu-repo/semantics/articleVersió
info:eu-repo/semantics/publishedVersionParaules clau / Matèries
Resum
A series of dimetallic and monometallic Cp*Ir(III) complexes bearing naphthalene-diimide-decorated N-heterocyclic carbene/pyridine [NDI-(NHC-pyridine)] ligands were prepared and characterized. The complexes show a ... [+]
A series of dimetallic and monometallic Cp*Ir(III) complexes bearing naphthalene-diimide-decorated N-heterocyclic carbene/pyridine [NDI-(NHC-pyridine)] ligands were prepared and characterized. The complexes show a C,C-chelating coordination of the NHC-pyridine ligand, with the pyridine ring of the ligand bound to the metal via cyclometallation rather than by its nitrogen atom, although the coordination by the nitrogen atom could be achieved by subjecting one of the complexes to reaction with a strong acid. The spectroelectrochemical studies of the new compounds reveal that the complexes are able to undergo two successive reduction events, associated with the sequential reduction of the NDI moiety of the ligand. The new complexes were tested in the dehydrative etherification by cross-coupling of primary alcohols, where they showed good activity and selectivity toward the cross-coupled products. The mechanistic studies allowed us to propose a reaction mechanism which likely involves a redox-neutral acid-catalyzed pathway. [-]
Publicat a
Organometallics 42, 13, (2023)Entitat finançadora
Ministerio de Ciencia y Universidades | Universitat Jaume I
Codi del projecte o subvenció
PID2021-127862NB-I00 | UJI-B2020-01 | UJI-B2021-39
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info:eu-repo/semantics/openAccess
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