Synthesis, characterization and a reactivity study of some allyl palladium complexes bearing bidentate hemi-labile carbene or mixed carbene/PPh3 ligands
| Autor: | Luciano Canovese, Thomas Scattolin, Claudio Santo, Fabiano Visentin, Valerio Bertolasi |
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| Přispěvatelé: | Canovese, L, Visentin, F., Scattolin, Thoma, DE SANTO, Carolina, Bertolasi, V. |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Settore CHIM/03 - Chimica Generale e Inorganica
Materials Chemistry2506 Metals and Alloys Denticity 010405 organic chemistry chemistry.chemical_element Allyl palladium complexes Physical and Theoretical Chemistry Inorganic Chemistry 010402 general chemistry 01 natural sciences 0104 chemical sciences Catalysis NO chemistry.chemical_compound chemistry Pyridine Polymer chemistry Materials Chemistry Organic chemistry Reactivity (chemistry) Piperidine Carbene Amination Palladium |
| Popis: | With the aim at synthesizing novel allyl complexes that can potentially act as catalysts in the Tsuji–Trost catalyzed reaction, we have synthesized and characterized some allyl and 2-Meallyl palladium derivatives with one hemilabile bidentate or two strong mono-coordinating spectator ligands. The hemilabile ligands are constituted by one nitrogen heterocyclic carbene (NHC) fragment acting as the pivot bearing a labile wing with a pyridine nitrogen or sulfur atom as the second stabilizing atom. One of two monodentate ligands is in all cases PPh3 whereas the other is a mono- or partially coordinated hemilabile carbene. The complexes were characterized by standard spectroscopic methods and elemental analysis and in two cases by SC-XRD technique. The reactivity of two selected complexes toward the Tsuji–Trost reaction was tested by stoichiometric allyl amination carried out with piperidine and the results of such a mechanistic investigation integrated by a computational study are also reported in this paper. |
| Databáze: | OpenAIRE |
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