Establishing a Molecular Mechanism for the Beckmann Rearrangement of Oximes over Microporous Molecular Sieves

Ana Belén Fernández; Mercedes Boronat; Teresa Blasco; Avelino Avelino

doi:10.1002/ange.200462737

Establishing a Molecular Mechanism for the Beckmann Rearrangement of Oximes over Microporous Molecular Sieves

Angewandte Chemie 117(16): 2422-2425

Article 2005 German

Abstract

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Mindestens zwei mögliche Wege der Beckmann-Umlagerung von Acetophenonoxim in Acetanilid über Zeolithkatalysatoren wurden identifiziert. Im ersten Schritt wird das Oxim-N-Atom über den Brønsted-sauren Stellen eines silikatischen Aluminiumzeoliths protoniert (siehe Bild), nicht jedoch über den Silanolgruppen eines reinen silikatischen Zeoliths.

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