D. Azarifar, Razieh Nejat-Yami, M. Zolfigol
Nov 1, 2013
Citations
0
Influential Citations
3
Citations
Journal
Journal of Heterocyclic Chemistry
Abstract
1,4-Diazabicyclo[2.2.2]octane has been explored as an efficient catalyst to effect the three-component condensation reactions between malononitrile, 4-arylurazoles, and aromatic aldehydes in ethanol under ultrasound irradiation conditions. The reactions proceeded very rapidly under mild conditions to furnish the corresponding pyrazolo[1,2-a][1,2,4]triazole-1,3-dione derivatives in excellent yields.