title: A convenient and efficient protocol for the synthesis of 5-aryl-1,3-diphenylpyrazole catalyzed by hydrochloric acid under ultrasound irradiation.
abstract: The synthesis of 5-aryl-1,3-diphenylpyrazole via the reactions of 3-aryl-2,3-epoxy-1-phenyl-1-propanone with phenylhydrazine was carried out in 69-99% yields at room temperature under ultrasound irradiation. This method provides several advantages such as operational simplicity, higher yield and environment friendly.
authors.affiliation: College of Chemistry and Environmental Science, Hebei University, Key Laboratory of Analytical Science and Technology of Hebei Province, Baoding 071002, PR China. lijitai@hbu.cn
authors.forename: Ji-Tai
authors.initials: JT
authors.lastname: Li
authors.forename: Ying
authors.initials: Y
authors.lastname: Yin
authors.forename: Ling
authors.initials: L
authors.lastname: Li
authors.forename: Ming-Xuan
authors.initials: MX
authors.lastname: Sun
mesh_terms: D002384:Catalysis; D006851:Hydrochloric Acid / Q000737:chemistry* / Q000528:radiation effects; D010659:Phenylhydrazines / Q000737:chemistry* / Q000528:radiation effects*; D011407:Propane / Q000737:chemistry* / Q000528:radiation effects*; D011720:Pyrazoles / Q000138:chemical synthesis* / Q000528:radiation effects*; D011829:Radiation Dosage; D013010:Sonication / Q000379:methods*
chemical_list: D010659:Phenylhydrazines; D011720:Pyrazoles; C030299:phenylhydrazine; D006851:Hydrochloric Acid; D011407:Propane