Y-Shaped Tris-N-Heterocyclic-Carbene Ligand for the Preparation of Multifunctional Catalysts of Iridium, Rhodium, and Palladium
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Altres documents de l'autoria: Gonell, Sergio; Poyatos, Macarena; Mata Martínez, Jose A; Peris, Eduardo
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Títol
Y-Shaped Tris-N-Heterocyclic-Carbene Ligand for the Preparation of Multifunctional Catalysts of Iridium, Rhodium, and PalladiumData de publicació
2012Editor
American Chemical SocietyISSN
0276-7333; 1520-6041Tipus de document
info:eu-repo/semantics/articleVersió de l'editorial
http://pubs.acs.org/doi/pdf/10.1021/om300569wResum
A series of homo- and hetero-dimetallic
complexes of Ir, Rh, and Pd have been obtained using our
previously reported Y-shaped tris-NHC ligand. The new
complexes can be obtained through the isolation of the
corre ... [+]
A series of homo- and hetero-dimetallic
complexes of Ir, Rh, and Pd have been obtained using our
previously reported Y-shaped tris-NHC ligand. The new
complexes can be obtained through the isolation of the
corresponding monometallic intermediates (in which the
ligand always coordinates in a chelating form) or by a onepot stepwise synthetic protocol that avoids the isolation of the
intermediate. The catalytic properties of the Ir−Pd complexes
have been explored in two tandem processes: dehalogenation/
transfer hydrogenation of haloacetophenones and Suzukicoupling/transfer hydrogenation of p-bromoacetophenone.
These two complexes have been also tested in two model reactions typically catalyzed by iridium (cyclization of 2-aminophenyl
ethyl alcohol to yield indole) and palladium (acylation of bromobenzene with n-hexanal). [-]
Publicat a
Organometallics, 2012, 31 (15)Drets d'accés
© 2012 American Chemical Society
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