Efficient epoxidation of chalcones with urea-hydrogen peroxide under ultrasound irradiation.
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.
Jin
Hong
H
Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, PR China.
Zhao
Haoyu
H
Zhao
Feihu
F
Li
Shihong
S
Liu
Wei
W
Zhou
Guoping
G
Tao
Ke
K
Hou
Taiping
T
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*
D047188:Chalcones; D004852:Epoxy Compounds; D014508:Urea; D006861:Hydrogen Peroxide