Synthetic Zeolites as Catalysts for the Ring Conversion of γ-Butyrolactone into 1-Substituted 2-Pyrrolidinones
- 1 October 1977
- journal article
- research article
- Published by Oxford University Press (OUP) in Bulletin of the Chemical Society of Japan
- Vol. 50 (10), 2517-2521
- https://doi.org/10.1246/bcsj.50.2517
Abstract
Synthetic zeolites were found to be effective catalysts for the synthesis of 1-substituted 2-pyrrolidinone by the reaction of γ-butyrolactone with amines. 1-Propyl-2-pyrrolidinone was obtained in the equilibrium yield with practically 100% selectivity over copper exchanged Y-zeolite at 280 °C. The effects of reaction temperature, contact time and partial pressures of the reactants were examined. A reaction mechanism is proposed for the ring transformation based on the kinetic studies of the reaction of γ-butyrolactone with propylamine.Keywords
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