Reactivity of an Arsanyl-Phosphagallene: Decarbonylation of CO2 and COS to Form Phosphaketenes
Szych Lilian , Bresien Jonas , Fischer Lukas , Ernst J. Moritz , Goicoechea M. Jose
Research article (journal) | Peer reviewedAbstract
The synthesis of an arsanyl-phosphagallene [H2CN(Dipp)]2AsP Ga(NacNac) (NacNac = HC[C(Me)N(Dipp)]2; Dipp = diisopropylphenyl) and its reactivity towards heterocumulenes and ketones is described. Reactions with azides, carbodiimides, isocyanates and ketones give rise to heterocycles via cyclization reactions involving the Ga P π-bond (with the Ga–P σ-bond remaining unperturbed in the final products). By contrast, reactions with CO2, CS2 and COS are more intriguing, revealing a reactivity profile in which the phosphorus atom can abstract carbon monoxide from the oxygen-containing heterocumulenes. These reactions result in the formation of gallium phosphaethynolate compounds. Such reactivity is enabled by the presence of a weakly Lewis basic arsanyl moiety which, in contrast to other related compounds featuring phosphanyl groups, is insufficiently nucleophilic to play a role in frustrated Lewis-pair like reactivity.
Details about the publication
Authors from the University of Münster
| Szych, Lilian Sophie | Junior Professorship of Inorganic Molecular Chemistry (Prof. Szych) |
Projects the publication originates from
Duration: 01/10/2022 - 31/12/2023 Funded by: Deutsche Akademie der Naturforscher Leopoldina e.V. – German National Academy of Sciences Type of project: Project carried out outside the University of Münster |