Photocatalytic deoxygenation of N–O bonds with Rhenium complexes: from the reduction of nitrous oxide to pyridine N-oxides - CEA - Commissariat à l’énergie atomique et aux énergies alternatives Accéder directement au contenu
Article Dans Une Revue Chemical Science Année : 2021

Photocatalytic deoxygenation of N–O bonds with Rhenium complexes: from the reduction of nitrous oxide to pyridine N-oxides

Résumé

The accumulation of nitrogen oxides in the environment calls for new pathways to interconvert the various oxidation states of nitrogen, and especially their reduction. However, the large spectrum of reduction potentials covered by nitrogen oxides makes it difficult to find general systems capable of efficiently reducing various N-oxides. Here,photocatalysis unlocks high energy species able both tocircumvent the inherent low reactivity of the greenhouse gas and oxidant N$_2$O (E°(N$_2$O/N$_2$) = +1.77V vs. SHE), and toreduce pyridine N-oxides (E$_{1/2}$(pyridine N-oxide/pyridine)=–1.04V vs.SHE). The rhenium complex [Re(4,4’-tBu-bpy)(CO)$_3$Cl] proved to be efficient in performingboth reactions under ambient conditions, enabling the deoxygenation of N$_2$O as well as synthetically relevant and functionalized pyridine N-oxides.
Fichier principal
Vignette du fichier
D1SC01974K.pdf (1.91 Mo) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

cea-03277737 , version 1 (13-04-2021)
cea-03277737 , version 2 (05-07-2021)

Licence

Paternité - Pas d'utilisation commerciale

Identifiants

Citer

Marianne Kjellberg, Alexia Ohleier, Pierre Thuéry, Emmanuel Nicolas, Lucile Anthore-Dalion, et al.. Photocatalytic deoxygenation of N–O bonds with Rhenium complexes: from the reduction of nitrous oxide to pyridine N-oxides. Chemical Science, 2021, 2021 (12), pp.10266-10272. ⟨10.1039/D1SC01974K⟩. ⟨cea-03277737v2⟩
164 Consultations
256 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More