Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
51630 | Catalysis Communications | 2008 | 6 Pages |
Abstract
The Beckmann rearrangement of cyclohexanone oxime to ε-caprolactam catalyzed by trifluoroacetic acid in aprotic solvents such as toluene, 1,2-dichloroethane, acetonitrile, benzonitrile, nitromethane and their mixtures is described. High yield and selectivity in ε-caprolactam have been observed. Data relative to cyclohexanone oxime protonation equilibrium, interaction of ε-caprolactam with the acid, solvent effect on reaction kinetics and apparent activation energy are given together with some thoughts on the reaction mechanism.
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Authors
L. Ronchin, A. Vavasori, M. Bortoluzzi,