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One-pot synthesis of tri- and tetrasubstituted imidazoles using nano-LaMnO3 perovskite-type oxide as reusable heterogeneous catalyst in solvent-free condition | ||
Iranian Journal of Catalysis | ||
مقاله 17، دوره 6، Issue 3- Special issue: Nanocatalysis، آبان 2016، صفحه 213-219 اصل مقاله (859.1 K) | ||
نوع مقاله: Articles | ||
نویسندگان | ||
Haleh Sanaeishoar* 1؛ Haman Tavakkoli1؛ Mahsa Asareh2؛ Fouad Mohave3 | ||
1Department of Chemistry, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran. | ||
2Department of Chemistry, Dezful Branch, Islamic Azad University, Dezful, Iran. | ||
3Young Researchers and Elite Club, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran. | ||
چکیده | ||
A convenient synthetic method for the synthesis of 2,4,5-trisubstituted and 1,2,4,5-tetra substituted imidazole derivatives, has been developed via one-pot condensation reaction in solvent-free condition when aldehyde, ammonium acetate/amine, and 1,2-diketone are reacted using 0.8 mol% of NP-LaMnO3 at 80 °C under solvent free conditions. Catalyst could be recovered and reused in five reaction cycles without any loss of its activities, giving a total turnover number (TON) = 594 and turn over frequency (TOF) = 71 h−1. High yield, little catalyst loading, elimination of solvent, simple workup, recovery and reusability of the catalyst are some of the impressive features of the present method. | ||
کلیدواژهها | ||
Perovskite-type oxide؛ imidazole؛ Solvent-free condition؛ One-pot synthesis | ||
مراجع | ||
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