[Ag(PcL)]‐Catalyzed Domino Reactions of 2‐Alkynylbenzaldehydes with Electron‐Poor Anilines: Synthesis of 1‐Aminoisochromenes
Valentina Pirovano, Gabriele Hamdan, Davide Garanzini, Elisa Brambilla, Elisabetta Rossi, Alessandro Caselli, Giorgio Abbiati
Abstract
In this paper, we describe the synthesis of neglected 1‐aminoisochromene derivatives starting from 2‐alkynylbenzaldehydes and electron‐poor anilines. The domino reaction is catalyzed by original [Ag I PcL] complexes and occurs with complete regioselectivity under mild conditions. The approach well‐tolerates different aryl, heteroaryl, alkyl and cycloalkyl substituents on alkyne terminus to give the desired products in modest to very good yields.
Topics & Concepts
ChemistryDominoRegioselectivityAlkyneCatalysisAlkylArylCombinatorial chemistryMedicinal chemistryCascade reactionOrganic chemistryCatalytic Alkyne ReactionsCatalytic C–H Functionalization MethodsClick Chemistry and Applications