Synthetic Communications p. 2588 - 2597 (2010)
Update date:2022-08-17
Topics:
Davoodnia, Abolghasem
Heravi, Majid M.
Safavi-Rad, Zahra
Tavakoli-Hoseini, Niloofar
3-Methyl-1-(4-sulfonic acid)butylimidazolium hydrogen sulfate [(CH 2)4SO3HMIM][HSO4], a Brnsted acidic ionic liquid, has been used as an efficient, green, and reusable catalyst for the synthesis of 1,2,4,5-tetrasubstituted imidazoles using benzil, an aromatic aldehyde, and a primary amine in the presence of ammonium acetate under solvent-free conditions. The catalyst could be recycled and reused several times without noticeably decreasing the catalytic activity. Taylor & Francis Group, LLC.
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