Recyclable iron(II) caffeine-derived ionic salt catalyst in the Diels–Alder reaction of cyclopentadiene and α,β-unsaturated N-acyloxazolidinones in dimethyl carbonate

Auteur(s): Meng, DiLi, DazhiOllevier, Thierry
Autre(s) titre(s): Recyclable iron(II) caffeine-derived ionic salt catalyst in the Diels–Alder reaction of cyclopentadiene and alpha,beta-unsaturated N-acyloxazolidinones in dimethyl carbonate
Résumé: Iron(II) triflate was used in combination with caffeine-derived salts as recyclable catalysts for the Diels–Alder reaction run in dimethyl carbonate (DMC) as a green solvent. The catalyst was prepared as an ionic salt from a xanthinium salt and Fe(OTf)2. Various substrates including α,β-unsaturated carbonyl and N-acyloxazolidinone derivatives were reacted with cyclopentadiene using this recyclable catalyst. The use of a low catalyst loading (1 mol%) afforded high yields (up to 99%) of the corresponding cycloadducts. The recycling and the efficiency of the catalyst were demonstrated for several runs.
Type de document: Article de recherche
Date de publication: 15 juillet 2019
Date de la mise en libre accès: 16 août 2019
Version du document: VoR
Lien permanent: http://hdl.handle.net/20.500.11794/36034
Ce document a été publié dans: RSC Advances, Vol. 38 (9), 21956–21963 (2019)
https://doi.org/10.1039/c9ra04098f
Royal Society of Chemistry
Autre version disponible: 10.1039/c9ra04098f
Collection :Articles publiés dans des revues avec comité de lecture

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