A straightforward and versatile FeCl 3 catalyzed Friedel–Crafts C -glycosylation process. Application to the synthesis of new functionalized C -nucleosides - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue New Journal of Chemistry Année : 2019

A straightforward and versatile FeCl 3 catalyzed Friedel–Crafts C -glycosylation process. Application to the synthesis of new functionalized C -nucleosides

Résumé

A new, straightforward and eco-compatible route to C-(hetero)aryl nucleosides is reported. This ribosylation process consists of a one-step FeCl 3 catalyzed Friedel-Crafts b-C-glycosydation reaction. This reaction occurs through an oxonium intermediate from readily available protected sugars leading to functionalized C-nucleosides with high stereocontrol. The expected new C-nucleosides were obtained in good yields within a short reaction time (10 min). Moreover, this approach is compatible with the use of a range of bulky (poly)aromatics such as naphthalene, anthracene and pyrene, which are not easily accessible via classical routes. These new C-aryl-nucleosides exhibit interesting photophysical properties, underling their potential use for further nucleic acid labelling.

Domaines

Chimie organique
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Dates et versions

hal-02322851 , version 1 (21-10-2019)

Identifiants

Citer

Hamza Tachallait, Mauro Safir Filho, Hamid Marzag, Khalid Bougrin, Luc Demange, et al.. A straightforward and versatile FeCl 3 catalyzed Friedel–Crafts C -glycosylation process. Application to the synthesis of new functionalized C -nucleosides. New Journal of Chemistry, 2019, 43 (14), pp.5551-5558. ⟨10.1039/c8nj06300a⟩. ⟨hal-02322851⟩
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