1. Laboratoire de Physicochimie des Hydrocarbures, Institut de Chimie de Strasbourg, 4 rue Blaise Pascal, 67000 Strasbourg (France), Fax: (+33)?390?24?1487;2. Laboratoire de Synthèse et Réactivité Organiques, Institut de Chimie de Strasbourg, 4 rue Blaise Pascal, 67000 Strasbourg (France), Fax: (+33)?390?24?1517
Abstract:
Clicking in zeolites : Copper(I)‐exchanged zeolites proved to be practical and efficient catalysts for the cycloaddition of azomethine imines with alkynes, providing a convenient access to N,N‐bicyclic pyrazolidinone derivatives (see scheme). With high regioselectivity, 100 % atom economy, and convenient product isolation, this heterogeneously catalyzed version of the Dorn cycloaddition corresponds to click‐chemistry criteria.
