Access to Mono‐, Di‐ and Tri‐(Het)Arylated Pyrazolo[5,1‐<i>b</i>]oxazoles Using Cyclization, C−H Activation and Suzuki–Miyaura Palladium‐Catalyzed Reactions - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Article Dans Une Revue European Journal of Organic Chemistry Année : 2023

Access to Mono‐, Di‐ and Tri‐(Het)Arylated Pyrazolo[5,1‐b]oxazoles Using Cyclization, C−H Activation and Suzuki–Miyaura Palladium‐Catalyzed Reactions

Résumé

A first access to mono-, di- and tri-(Het)arylated pyrazolo[5,1-b]oxazoles is reported. The series were generated from a library of 3-(Het)arylpyrazolo[5,1-b]oxazole platforms selectively functionalized through regioselective arylation procedures. The regioselective functionalization in C-2 and C-7 positions was investigated. Each Palladium-catalyzed cross-coupling condition was optimized and a representative library of the scope and limitations of the reactions was studied.

Domaines

Chimie organique
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Dates et versions

hal-04346358 , version 1 (15-12-2023)

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Marion Michel, Flore Caré, Stéphane Bourg, Stéphane Bostyn, Pierre Lafite, et al.. Access to Mono‐, Di‐ and Tri‐(Het)Arylated Pyrazolo[5,1‐b]oxazoles Using Cyclization, C−H Activation and Suzuki–Miyaura Palladium‐Catalyzed Reactions. European Journal of Organic Chemistry, 2023, 27, pp.e202301040. ⟨10.1002/ejoc.202301040⟩. ⟨hal-04346358⟩
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