Dinuclear Gold Complexes Supported by Wide Bite Angle Diphosphines for Preorganization-Induced Selective Dual-Gold Catalysis
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| Publication date | 03-2019 |
| Journal | Inorganics |
| Article number | 28 |
| Volume | Issue number | 7 | 3 |
| Number of pages | 13 |
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| Abstract |
The synthesis, reactivity, and potential of well-defined dinuclear gold complexes as precursors for dual-gold catalysis is explored. Using the preorganizing abilities of well-known wide bite angle diphosphine ligands, DBFPhos and DPEPhos, dinuclear Au(I)–Au(I) complexes 1 and 2 are used as precursors to form well-defined monocationic species with either a chlorido- or acetylido-ligand bridging the two gold centers. These compounds are active catalysts for the dual-gold heterocycloaddition of a urea-functionalized alkyne, and the preorganization of both Au-centers affords efficient σ,π-activation of the substrate, even at high dilution, significantly outperforming benchmark mononuclear catalysts.
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| Document type | Article |
| Note | - With supplementary file. - In Special Issue: Binuclear Complexes |
| Language | English |
| Related dataset | CCDC 1894224: Experimental Crystal Structure Determination CCDC 1893603: Experimental Crystal Structure Determination CCDC 1894225: Experimental Crystal Structure Determination |
| Published at | https://doi.org/10.3390/inorganics7030028 |
| Downloads |
inorganics-07-00028
(Final published version)
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