Résumé
The complexes (Cy2PC3H6PCy2)Ni(η2-arene) (arene = toluene (3), naphthalene (4)) have been synthesized and studied in detail. Displacement reactions of the toluene ligand afford the complexes (Cy2PC3H6PCy2)Ni(η2-styrene) (5), (Cy2PC3H6PCy2)Ni(PhCN) (6), (Cy2PC3H6PCy2)Ni(CO)2 (7), (Cy2PC3H6PCy2)Ni(PPh3) (8), (Cy2PC3H6PCy2)Ni(PCy3) (9), {(Cy2PC3H6PCy2)Ni}2(μ-H)2 (10), (Cy2PC3H6PCy2)Ni(η2-CO2) (11), and [(Cy2PC3H6PCy2)Ni]2(μ,η2-1,5-COD) (12). The relative rates of ArCl oxidative addition at Ni complexes 3, 4, 6, 8, and 12 have been evaluated experimentally, and the mechanism has been calculated by DFT. Complexes 3 and 4 are efficient catalysts for the Suzuki-Miyaura reaction between chloroarenes and Ar′B(OH)2.
| langue originale | Anglais |
|---|---|
| Pages (de - à) | 1688-1699 |
| Nombre de pages | 12 |
| journal | Organometallics |
| Volume | 39 |
| Numéro de publication | 10 |
| Les DOIs | |
| état | Publié - 26 mai 2020 |
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