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Synthesis of pyrido[3′,2′:4,5]thieno[2,3-e][1,2,4]triazolo[4,3-a]pyrimidin-5(4H)-one derivatives

被引：0
|
作者：
Abolghasem Davoodnia
Mehdi Bakavoli
Sharare Mohseni
Niloofar Tavakoli-Hoseini
机构：
[1] Islamic Azad University,Department of Chemistry, School of Sciences
[2] Mashhad Branch,undefined
来源：
Monatshefte für Chemie - Chemical Monthly | 2008年 / 139卷
关键词：
Pyridothienotriazolopyrimidine; Isothiocyanates; Hydrazine hydrate; Triethylorthoesters; Cyclocondensation.;
D O I：
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学科分类号：
摘要：
Some new pyrido[3′,2′:4,5]thieno[2,3-e]-[1,2,4]triazolo[4,3-a] pyrimidin-5(4H)-ones were prepared through heterocyclization of ethyl 3-aminothieno[2,3-b]pyridine-2-carboxylate with phenyl or ethyl isothiocyanate followed by nucleophilic displacement with hydrazine, and finally cyclocondensation with orthoesters.
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页码：963 / 965
页数：2
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