Citation: Mahnaz Farahi, Bahador Karami, Zohreh Banaki. Improved microwave-assisted catalyst-free synthesis of 9-aryl-5,9-dihydropyrimido[4,5-d][1,2,4]triazolo[1,5-a]pyrimidine-6,8(4H,7H)-dione derivatives[J]. Chinese Chemical Letters, ;2015, 26(9): 1065-1067. doi: 10.1016/j.cclet.2015.05.035 shu

Improved microwave-assisted catalyst-free synthesis of 9-aryl-5,9-dihydropyrimido[4,5-d][1,2,4]triazolo[1,5-a]pyrimidine-6,8(4H,7H)-dione derivatives

1.
Department of Chemistry, Yasouj University, Yasouj 75918-74831, Iran

Corresponding author: Mahnaz Farahi,
Received Date: 26 February 2015
Available Online: 6 May 2015

A green regioselective synthesis of some new and known 9-aryl-5,9-dihydropyrimido[4,5-d][1,2,4]triazolo[1,5-a]pyrimidine-6,8(4H,7H)-diones has been described via the microwave-assisted one-pot reaction of 3-amino-1H-1,2,4-triazoles, aromatic aldehydes and barbituric acids under solvent- and catalyst-free conditions. This operationally simple procedure is less laborious and provides a better scope than previously reported procedures.
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沈阳化工大学材料科学与工程学院沈阳 110142