Synthesis and chemical transformations of partially hydrogenated [1,2,4]triazolo[5,1-b]quinazolines |
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| Authors: | V. V. Lipson S. M. Desenko I. V. Ignatenko O. V. Shishkin S. V. Shishkina |
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| Affiliation: | (1) V. Ya. Danilevsky Institute of Endocrine Pathology Problems, Academy of Medical Sciences of Ukraine, 10 ul. Artema, 61002 Kharkov, Ukraine;(2) State Scientific Institution “Institute for Single Crystals,”, National Academy of Sciences of Ukraine, 60 prosp. Lenina, 61001 Kharkov, Ukraine |
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| Abstract: | The reaction of 5-methyl-7-phenyl-4,7-dihydro-1,2,4-triazolo[1,5-a]pyrimidine with α,β-unsaturated carbonyl compounds in MeOH in the presence of MeONa affords partially hydrogenated aryl-substituted [1,2,4]triazolo[5,1-b]quinazolines. Hydrolysis, oxidation, reduction, and alkylation of 5,6,8-triphenyl-5,6,7,10-tetrahydro[1,2,4]triazolo[5,1-b]quinazoline were studied. The structure of one oxidation product, viz., 7-hydroxy-5,6,8-triphenyl-6,7-dihydro[1,2,4]triazolo[5,1-b]quinazoline, was established by X-ray diffraction. Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 2, pp. 335—340, February, 2006. |
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| Keywords: | partially hydrogenated [1,2,4]triazolo[5,1-b]quinazolines synthesis chemical properties X-ray diffraction study |
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