title: Ionic liquid under ultrasonic irradiation towards a facile synthesis of pyrazolone derivatives.
abstract: 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.
authors.affiliation: Department of Environmental and Chemistry Engineering, Tianjin Polytechnic University, State Key Laboratory of Hollow Fiber Membrane Materials and Processes, Tianjin 300160, China. zanghongjun@tjpu.edu.cn
authors.forename: Hongjun
authors.initials: H
authors.lastname: Zang
authors.forename: Qiuhong
authors.initials: Q
authors.lastname: Su
authors.forename: Yingming
authors.initials: Y
authors.lastname: Mo
authors.forename: Bowen
authors.initials: B
authors.lastname: Cheng
mesh_terms: D018360:Crystallography, X-Ray; D052578:Ionic Liquids / Q000737:chemistry*; D008958:Models, Molecular; D015394:Molecular Structure; D047069:Pyrazolones / Q000138:chemical synthesis* / Q000737:chemistry; D014465:Ultrasonics
chemical_list: D052578:Ionic Liquids; D047069:Pyrazolones; C038362:pyrazolone