Ionic liquid under ultrasonic irradiation towards a facile synthesis of pyrazolone derivatives

Ionic liquid [HMIM]HSO 4 was found to be an efficient catalyst for the synthesis of 4-[(5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)-phenyl-methyl]-5-methyl-2-phen-yl-1,2-dihydro-pyrazol-3-ones through the condensation reaction of arylaldehydes and 3-methyl-1-phenyl-5-pyrazolone under ultrasonic irr...

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Veröffentlicht in:	Ultrasonics sonochemistry 2011, Vol.18 (1), p.68-72
Hauptverfasser:	Zang, Hongjun, Su, Qiuhong, Mo, Yingming, Cheng, Bowen
Format:	Artikel
Sprache:	eng
Schlagworte:	3-Methyl-1-phenyl-5-pyrazolone Catalysis Chemistry Condensation Crystallography, X-Ray Exact sciences and technology General and physical chemistry Ionic liquid Ionic Liquids - chemistry Models, Molecular Molecular Structure Physical chemistry of induced reactions (with radiations, particles and ultrasonics) Pyrazolones - chemical synthesis Pyrazolones - chemistry Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry Ultrasonic chemistry Ultrasonics Ultrasound
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Beschreibung
Zusammenfassung:	Ionic liquid [HMIM]HSO 4 was found to be an efficient catalyst for the synthesis of 4-[(5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)-phenyl-methyl]-5-methyl-2-phen-yl-1,2-dihydro-pyrazol-3-ones through the condensation reaction of arylaldehydes and 3-methyl-1-phenyl-5-pyrazolone under ultrasonic irradiation at room temperature. The present methodology offers several advantages such as excellent yields, simple procedure and mild conditions.
ISSN:	1350-4177 1873-2828
DOI:	10.1016/j.ultsonch.2010.08.001