Synthesis of 2,4,5-trisubstituted imidazoles catalyzed by [Hmim]HSO₄ as a powerful Brönsted acidic ionic liquid

Author: Khosropour, Ahmad R.

Source: Canadian Journal of Chemistry, Volume 86, Number 3, March 2008 , pp. 264-269(6)

Buy & download fulltext article:

Price: $28.22 plus tax (Refund Policy)

Abstract:

An efficient and green procedure for the synthesis of 2,4,5-trisubstituted imidazoles with various aldehydes using a catalytic amount of 1-methylimidazolium hydrogenesulfate as an active and low cost Brönsted acidic room temperature ionic liquid has been developed. The ionic liquid was easily separated from the reaction mixture and was recycled five times without any loss in activity.Key words: ionic liquid, 2,4,5-trisubstituted imidazoles, [Hmim]HSO₄, aldehyde, benzil.

On a mis au point une méthode efficace et environnementalement correcte pour la synthèse d'imidazoles 2,4,5-trisubstitués utilisant divers aldéhydes et une quantité catalytique d'hydrogénosulfate de 1-méthylimidazolium actif comme acide de Brönsted à la température ambiante et comme liquide ionique de faible coût. On peut facilement séparer le liquide ionique du mélange réactionnel et le recycler au moins cinq fois sans la moindre perte d'activité.Mots-clés : liquide ionique, imidazoles 2,4,5-trisubstitués, [Hmim]HSO₄, aldéhyde, benzile.[Traduit par la Rédaction]

Document Type: Research article

Publication date: 2008-03-01

More about this publication?

Published since 1929, this monthly journal reports current research findings in all branches of chemistry. It includes the traditional areas of analytical, inorganic, organic, and physical-theoretical chemistry and newer interdisciplinary areas such as materials science, spectroscopy, chemical physics, and biological, medicinal and environmental chemistry. Full papers, preliminary communications and review articles are all welcomed.
Information for Authors
Submit a Paper
Subscribe to this Title
Terms & Conditions
Sample Issue
Reprints & Permissions
ingentaconnect is not responsible for the content or availability of external websites