CAMPUS è l'Archivio istituzionale delle pubblicazioni scientifiche dell’Università di Camerino. E’ un sistema aperto, pubblico e interoperabile che raccoglie, conserva ed espone i dati relativi alle attività e ai prodotti della ricerca dell’Ateneo con lo scopo di migliorarne la visibilità e di favorirne l’impatto a livello nazionale e internazionale.
EnglishNew silver(I) carbene complexes were obtained starting from the N-heterocyclic carbene ligand precursors {[HB(RImH)(3)]Br-2} (R = Bn, Mes and t-Bu) and {[HC(MeBImH)(3)](BF4)(3)}, by treatment of the imidazolium salt with Ag2O. Use of the tris-imidazolylborate precursors resulted in stable, well-characterized trimetallic complexes of general formula {Ag-3[HB(RIm)(3)](2)}Br, which were successfully employed as carbene transfer reagents in the synthesis of related gold(I) complexes by transmetallation. The silver complexes also proved to be active catalysts of the coupling of aryl iodides with terminal alkynes (the Sonogashira reaction), although related bimetallic silver complexes were found to exhibit enhanced reactivity.
Scheda prodotto non validato
Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo
| Titolo: | Novel scorpionate-type triscarbene ligands and their silver and gold complexes | |
| Autori: | ||
| Data di pubblicazione: | 2008 | |
| Rivista: | ||
| Abstract: | New silver(I) carbene complexes were obtained starting from the N-heterocyclic carbene ligand precursors {[HB(RImH)(3)]Br-2} (R = Bn, Mes and t-Bu) and {[HC(MeBImH)(3)](BF4)(3)}, by treatment of the imidazolium salt with Ag2O. Use of the tris-imidazolylborate precursors resulted in stable, well-characterized trimetallic complexes of general formula {Ag-3[HB(RIm)(3)](2)}Br, which were successfully employed as carbene transfer reagents in the synthesis of related gold(I) complexes by transmetallation. The silver complexes also proved to be active catalysts of the coupling of aryl iodides with terminal alkynes (the Sonogashira reaction), although related bimetallic silver complexes were found to exhibit enhanced reactivity. | |
| Handle: | http://hdl.handle.net/11581/208054 | |
| Appare nelle tipologie: | Articolo |
File in questo prodotto:
http://hdl.handle.net/11581/208054
Copyright © 2021