Base‐Stabilized [PO] + /[PO 2 ] + Cations
| Autor: | Jiliang Zhou, Liu Leo Liu, Douglas W. Stephan, Levy L. Cao |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Cyclopropenylidene
chemistry.chemical_classification Base (chemistry) 010405 organic chemistry General Chemistry General Medicine Resonance (chemistry) 010402 general chemistry Medicinal chemistry 01 natural sciences Catalysis 3. Good health 0104 chemical sciences chemistry.chemical_compound chemistry Electrophile Reactivity (chemistry) Singlet state Fluoride |
| Zdroj: | Angewandte Chemie. 131:18444-18448 |
| ISSN: | 1521-3757 0044-8249 |
| DOI: | 10.1002/ange.201912009 |
| Popis: | The salts [(BAC)2 PO][BF4 ] (5) and [(BAC)2 PO2 ][BF4 ] (4) (BAC=bis(diisopropylamino) cyclopropenylidene), consisting of the PO+ and PO2 + cations, respectively, coordinated to the singlet carbenes, have been prepared. Computational investigations reveal that the electronic structure of the PO+ cation is a hybrid between the charge-localized and charge-delocalized resonance forms, resulting in ambiphilic reactivity. Compound 5 reacts as a donor with the transition-metal complex K2 PtCl4 to furnish [[(BAC)2 PO]2 PtCl2 ][BF4 ]2 (6) and KCl. Remarkably, both 5 and 4 have shown to act as electrophiles undergoing reactions with fluoride anion, leading to [OPF2 ]- and (BAC)PO2 F, respectively. |
| Databáze: | OpenAIRE |
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