Synthesis of Partially Hydrogenated 1,2,4-Triazoloquinazolines by Condensation of 3,5-Diamino-1,2,4-triazole with Aromatic Aldehydes and Dimedone |
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| Authors: | V V Lipson S M Desenko V V Borodina M G Shirobokova V I Musatov |
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| Institution: | (1) Danilevskii Institute of Endocrinous Pathology Problems, Academy of Medical Sciences of Ukraine, ul. Artema 10, Khar’kov, 61002, Ukraine;(2) “Institut monokristallov” Research and Technology Complex, National Academy of Sciences of Ukraine, Khar’kov, Ukraine |
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| Abstract: | Three-component condensation of 3,5-diamino-1,2,4-triazole with aromatic aldehydes and dimedone in dimethylformamide gives 2-amino-5-aryl-8,8-dimethyl-5,6,7,8,9,10-hexahydro1,2,4]triazolo3,2-b]quinazolin-6-ones. The reaction of 3,5-diamino-1,2,4-triazole with dimedone in the absence of aldehyde involves dimethylformamide as one of the carbonyl components to afford 2-amino-8,8-dimethyl-6,7,8,9-tetrahydro1,2,4]triazolo2,3-a]quinazolin-6-one.__________Translated from Zhurnal Organicheskoi Khimii, Vol. 41, No. 1, 2005, pp. 115–120.Original Russian Text Copyright © 2005 by Lipson, Desenko, Borodina, Shirobokova, Musatov. |
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