2024-03-28T18:52:47Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1694582021-10-01T11:10:12Zcom_10261_38com_10261_5col_10261_291
N-Heterotricyclic cationic carbene ligands. Synthesis, reactivity and coordination chemistry
Iglesias-Sigüenza, Javier
Izquierdo, Cristina
Díez, Elena
Fernández, Rosario
Lassaletta, José M.
The direct dialkylation of triazolo[4,3-b]isoquinolin-3-ylidene structures readily affords dicationic N-heterotricyclic azolium salts. These are suitable starting materials for the synthesis of transition metal complexes containing N-heterotricyclic, cationic ligands characterized by extended charge delocalization. Silver and gold complexes as well as mono- and dicationic rhodium(i) complexes have been prepared and characterized, and the electronic properties of the ligand have been evaluated by using the TEP parameter and by comparison with a non-cationic analogue. X-Ray diffraction analysis of several carbene-metal complexes shows a negligible effect of the charge on the structures of the complexes. The catalytic activity of a tricationic gold complex has been evaluated in the intramolecular hydroarylation of a terminal alkyne.
2018-09-07T08:03:46Z
2018-09-07T08:03:46Z
2018
2018-09-07T08:04:00Z
http://hdl.handle.net/10261/169458
10.1039/c8dt00213d
eng
openAccess