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The effect of ultrasound on the N-alkylation of imidazole over alkaline carbons: Kinetic aspects

Paper ID Volume ID Publish Year Pages File Format Full-Text
42207 45915 2010 7 PDF Available
Title
The effect of ultrasound on the N-alkylation of imidazole over alkaline carbons: Kinetic aspects
Abstract

N-Alkylimidazoles have been synthesized by sonochemical irradiation of imidazole and 1-bromobutane using alkaline-promoted carbons. The catalysts were characterized by X-ray photoelectron spectroscopy, thermal analysis and nitrogen adsorption isotherms. Under the experimental conditions, N-alkylimidazoles can be prepared with a high activity and selectivity. It is observed that imidazole conversion increases in parallel with increasing the basicity of the catalyst. For comparison, the alkylation of imidazole has also been performed in a batch reactor system under thermal activation.

Graphical abstractN-Alkylimidazoles have been synthesized by sonochemical irradiation of imidazole and 1-bromobutane using alkaline-promoted carbons. Under the experimental conditions, N-alkylimidazoles can be prepared with a high activity and selectivity. It is observed that imidazole conversion increases in parallel with increasing the basicity of the catalyst.Figure optionsDownload full-size imageDownload high-quality image (16 K)Download as PowerPoint slide

Keywords
Reaction kinetic; Sonocatalysis; Basicity; Activated carbons; Imidazole; Alkylation
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The effect of ultrasound on the N-alkylation of imidazole over alkaline carbons: Kinetic aspects
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 378, Issue 1, 15 April 2010, Pages 26–32
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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