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

Fernández Ana B. | Zendy; Boronat Mercedes | Zendy; Blasco Teresa | Zendy; Corma Avelino | Zendy

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

Author(s) -

Fernández Ana B.,

Boronat Mercedes,

Blasco Teresa,

Corma Avelino

Publication year - 2005

Publication title -

angewandte chemie international edition

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 1433-7851

DOI - 10.1002/anie.200462737

Subject(s) - beckmann rearrangement , oxime , zeolite , chemistry , microporous material , molecular sieve , silanol , acetophenone , cyclohexanone oxime , protonation , catalysis , acetanilide , organic chemistry , ion , selectivity

At least two possible pathways were found for the Beckmann rearrangement of acetophenone oxime to acetanilide over zeolite catalysts. In the first step, the N atom of the oxime is protonated over the Brønsted acid sites of an aluminum siliceous zeolite (see picture), but not over the silanol groups of a pure siliceous zeolite.

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