361481-04-1Relevant articles and documents
Bi2O3/FAp, a sustainable catalyst for synthesis of dihydro-[1,2,4]triazolo[1,5-a]pyrimidine derivatives through green strategy
Kerru, Nagaraju,Gummidi, Lalitha,Maddila, Surya Narayana,Bhaskaruni, Sandeep V.H.S.,Jonnalagadda, Sreekantha B.
, (2020)
The bismuth loaded on fluorapatite (Bi2O3/FAp) proved to be an excellent catalyst for the synthesis of novel dihydro-[1,2,4]triazolo[1,5-a]pyrimidine derivatives via a three-component reaction involving the mixture of 1H-1,2,4-triazo
Design and synthesis of nickel tetra‐2,3‐pyridiniumporphyrazinato trinitromethanide as an influential catalyst and its application in the synthesis of 1,2,4-triazolo based compounds
Asgari, Asiye,Baghery, Saeed,Bayat, Yadollah,Dashteh, Mohammad,Khazaei, Ardeshir,Makhdoomi, Sajjad,Rakhtshah, Jamshid,Safaiee, Maliheh,Zolfigol, Mohammad Ali
, (2021/08/17)
The facile and benign syntheses of [1,2,4]triazolo[5,1-b]quinazolines and [1,2,4]triazolo[1,5-b]pyrimidines were studied using novel nickel tetra‐2,3‐pyridiniumporphyrazinato trinitromethanide [Ni(TPPAH)][C(NO2)3]4 as an e
Agar-entrapped sulfonated DABCO: Agelly acidic catalyst for the acceleration of one-pot synthesis of 1,2,4-triazoloquinazolinone and some pyrimidine derivatives
Langarudi, Mohaddeseh Safarpoor Nikoo,Moghaddampour, Issa Mousazadeh,Shirini, Farhad
, (2020/10/07)
In this project, a recently synthesized DABCO-based catalyst is entrapped in agar to reduce its moisture sensitivity leading to enhancement of its stability and catalytic activity. After preparation and identification this new reagent is used as an efficient and environmentally safe catalyst for the preparation of 1, 2, 4-triazoloquinazolinone and some pyrimidine derivatives. This method is accompanied with some superiorities such as, simple operation, mild and green conditions, use of low cost and non-hazardous natural material, short reaction times, easy preparation methods and simple work-up procedures. The prepared catalyst can be re-used for several times in all of the studied reactions without any appreciable loss in its activity.
A simple and convenient synthesis of [1,2,4]triazolo/benzimidazolo quinazolinone and [1,2,4]triazolo[1,5-a]pyrimidine derivatives catalyzed by DABCO-based ionic liquids
Seyyedi, Narges,Shirini, Farhad,Langarudi, Mohaddeseh Safarpoor Nikoo,Jashnani, Setareh
, p. 1859 - 1867 (2017/08/14)
DABCO-based ionic liquids were utilized for the preparation of [1,2,4]triazolo/benzimidazolo quinazolinone and [1,2,4]triazolo[1,5-a]pyrimidine derivatives in the adequate procedures. These methods involve three-component reaction between aldehydes, β-dik
Three-component uncatalyzed eco-friendly reactions for one-pot synthesis of 4,7-dihydro[1,2,4]triazolo[1,5-a]pyrimidine derivatives
El Rady, Eman A.
, p. 869 - 875 (2014/06/10)
A three-component system of one-pot synthesis of [1,2,4]triazolo[1,5-a] pyrimidine derivatives using condensation of 1,3-dicarbonyl compounds, aldehydes, and 5-amino[1,2,4]triazole in ethanol without any catalyst was reported in high yields via simple, efficient, and environmentally friendly process. The method reported herein considered a green process; this method has significant advantages of simple workup procedure, excellent yield, minimal environmental pollution, and short reaction time over classical reported methods.
Thiamine hydrochloride (VB1): An efficient promoter for the one-pot synthesis of benzo[4,5]imidazo[1,2-a]pyrimidine and [1,2,4]triazolo[1,5- a]pyrimidine derivatives in water medium
Liu, Junhua,Lei, Min,Hu, Lihong
experimental part, p. 840 - 846 (2012/04/17)
A straightforward and general method has been developed for the synthesis of benzo[4,5]imidazo[1,2-a]pyrimidine and [1,2,4]triazolo[1,5-a]pyrimidine derivatives by simply combining 2-aminobenzimidazole or 3-amino-1,2,4-triazole, aldehyde, and β-dicarbonyl
