Improved synthesis of chalconoid-like compounds under ultrasound irradiation.
Claisen-Schmidt condensation of various substituted acetophenones with cinnamaldehyde catalyzed by KF-Al2O3 results chalconoid-like compounds, (2E,4E)-1,5-diarylpenta-2,4-dien-1-ones, in 67-92% yields in 5-60 min under ultrasound irradiation.
Jin
Hong
H
Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, PR China.
Xiang
Liyu
L
Wen
Fang
F
Tao
Ke
K
Liu
Qian
Q
Hou
Taiping
T