Cobalt‐catalyzed annulation of benzimidates or NH‐benzaldimines with ynamides: synthesis of 1‐alkoxy‐ and 1‐alkyl‐3‐aminoisoquinolines
Résumé
Inexpensive cobalt-catalyzed, pivalic acid-assisted oxidative CH functionalization of benzimidates or NH-benzaldimines with ynamides is presented, providing an access to novel 3-amino-isoquinoline derivatives. The procedure is compatible with various substrates featuring alkyl, alkoxy, acyl or halogen as substituents, heteroaryl structures, and diverse ynamides. Notably, the reaction has been successfully scaled up, with subsequent transformation of the yielded products. Control experiments and mechanistic investigations corroborate the regioselectivity of this conversion, positioning the amine group proximal to the nitrogen atom in isoquinolines.
Domaines
Chimie organique
Fichier principal
Adv Synth Catal - 2024 - Sanaa - Cobalt‐Catalyzed Annulation of Benzimidates or NH‐Benzaldimines with Ynamides Synthesis.pdf (6.38 Mo)
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