title: Efficient epoxidation of chalcones with urea-hydrogen peroxide under ultrasound irradiation.
abstract: An efficient epoxidation of chalcones with urea-hydrogen peroxide (UHP) under ultrasound irradiation was carried out in 78-93% yields. Compared with the classical method, the advantages of protocol are to use a safer oxidant, mild conditions, no toxic solvent and shorter reaction time.
authors.affiliation: Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, PR China.
authors.forename: Hong
authors.initials: H
authors.lastname: Jin
authors.forename: Haoyu
authors.initials: H
authors.lastname: Zhao
authors.forename: Feihu
authors.initials: F
authors.lastname: Zhao
authors.forename: Shihong
authors.initials: S
authors.lastname: Li
authors.forename: Wei
authors.initials: W
authors.lastname: Liu
authors.forename: Guoping
authors.initials: G
authors.lastname: Zhou
authors.forename: Ke
authors.initials: K
authors.lastname: Tao
authors.forename: Taiping
authors.initials: T
authors.lastname: Hou
mesh_terms: D047188:Chalcones / Q000737:chemistry*; D004852:Epoxy Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D006861:Hydrogen Peroxide / Q000737:chemistry*; D015394:Molecular Structure; D013237:Stereoisomerism; D014465:Ultrasonics; D014508:Urea / Q000737:chemistry*
chemical_list: D047188:Chalcones; D004852:Epoxy Compounds; D014508:Urea; D006861:Hydrogen Peroxide