2015
DOI: 10.24959/ophcj.15.867
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5,6-Dihydro-[1,2,4]triazolo[1,5-c]quinazolines. Message 1. Features of interactions between [2-(3-aryl-1H-1,2,4-triazole-5-yl)phenyl]amines, aliphatic and aromatic aldehydes

Abstract: Reactions of [5+1]-cyclocondensation of [2-(3-aryl-1H-1,2,4-triazol-5-yl)phenyl]amines with aliphatic and aromatic aldehydes produce the corresponding 5-R-2-aryl-5,6-dihydro-or 5-R-2-aryl-[1,2,4]triazolo[1,5-с]quinazolines depending on the conditions. The optimal conditions of the reaction have been found, and factors contributing to oxidation of 5-R-2-aryl-5,6-dihydro-[1,2,4]triazolo[1,5-с]quinazolines have been determined. The alternative synthetic approaches for 5-R-2-aryl-[1,2,4]triazolo[1,5-с]quinazolines… Show more

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Cited by 1 publication
(2 citation statements)
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“…62 The most active substances were 1-[4-chloro-2-(1H-tetrazol-5-yl)phenyl]-3-ethylurea, 1-[2-methyl-6-(1H-tetrazol-5-yl)phenyl]-3-[3-(trifluoromethyl)phenyl]ureа and tetrazolo[1,5-c]quinazolin-5(6H)-one, in some cases exceeding in activity reference drugs metformin (both at concentrations 50 and 200 mg/kg) and gliclazide (at 50 mg/kg).…”
Section: Biological Properties Of 2-(azolyl)anilinesmentioning
confidence: 97%
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“…62 The most active substances were 1-[4-chloro-2-(1H-tetrazol-5-yl)phenyl]-3-ethylurea, 1-[2-methyl-6-(1H-tetrazol-5-yl)phenyl]-3-[3-(trifluoromethyl)phenyl]ureа and tetrazolo[1,5-c]quinazolin-5(6H)-one, in some cases exceeding in activity reference drugs metformin (both at concentrations 50 and 200 mg/kg) and gliclazide (at 50 mg/kg).…”
Section: Biological Properties Of 2-(azolyl)anilinesmentioning
confidence: 97%
“…In the work of Kholodnyak et al, 62 2-(5-aryl-1H-1,2,4-triazol-3-yl)anilines 62 were used as 1,5-binucleophiles in the synthesis of triazolo [1,5-c]quinazolines. The interaction of anilines 62 with aromatic and aliphatic aldehydes in acetic acid for 3-6 h led to formation of the product mixture of 2-aryl-5,6-dihydro [1,2,4]triazolo [1,5-с] Further investigation by the same group 64 allowed to obtain spiro derivatives 154 as products of binucleophilic addition of compounds 62 to cycloalkanones (cyclopentanone, cyclohexanone) (Scheme 53).…”
Section: The Reactivity 2-(azolyl)anilines In Cyclocondensationsmentioning
confidence: 99%