Synthesis of ethyl alkylidene alpha cyanoacetates under ultrasound irradiation.
Condensation of ketones with ethyl cyanoacetate catalysed by ammonium acetate-acetic acid results in ethyl alkylidene alpha cyanoacetate in 31-89% yield under ultrasound irradiation.
Li
J T
JT
Department of Chemistry, Hebei University, No. 1 Hezuo Road, Baoding 071002, People's Republic of China. orgsyn@mail.hbu.edu.cn
Zang
H J
HJ
Meng
L H
LH
Li
L J
LJ
Yin
Y H
YH
Li
T S
TS