Ítem
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Rovira Coll, Mireia
Jašíková, Lucie Andris, Erik Acuña-Parés, Ferran Soler Vives, Marta Güell Costa, Imma Wang, Ming Zheng Gómez Martín, Laura Luis Luis, Josep Maria Roithová, Jana Ribas Salamaña, Xavi |
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| 5 juny 2018 | |
| Unraveling the mechanistic details of copper-catalyzed arylation of nucleophiles (Ullmann-type couplings) is a very challenging task. It is a matter of intense debate whether it is a radical-based process or an organometallic redox- based process. The ancillary ligand choice in Ullmann-type couplings plays a key role in such transformations and can strongly influence the catalytic efficiency as well as the mechanism. Here, we show how a predesigned tridentate pincer-like catalyst undergoes a deactivation pathway through a Cu I /Cu III prototypical mechanism as demonstrated by helium-tagging infrared photodissociation (IRPD) spectroscopy and DFT studies, lending a strong support to the existence of an aryl-Cu III species in the Ullmann couplings using this tridentate ligand | |
| http://hdl.handle.net/2072/319858 | |
| eng | |
| Royal Society of Chemistry (RSC) | |
| Attribution-NonCommercial 3.0 Spain | |
| http://creativecommons.org/licenses/by-nc/3.0/es/ | |
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Catalitzadors de coure
Copper catalysts Catàlisi Catalysis Reaccions químiques Chemical reactions |
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| A CuI /CuIII prototypical organometallic mechanism for the deactivation of an active pincer-like CuI catalyst in Ullmann-type couplings | |
| info:eu-repo/semantics/article | |
| Recercat |
