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Petrova S. F. Nugumanov T. R. Khazimullina Yu. Z. Gimadieva A. R. Ivanov S. P. 《Russian Journal of General Chemistry》2020,90(5):794-798
Russian Journal of General Chemistry - 5-Hydroxy-1,3,6-trimethyluracil has been studied using 1H, 13C, and 15N NMR as well as UV spectroscopy. The constants and thermodynamic characteristics of its... 相似文献
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Nugumanov T. R. Antipin A. V. Grabovskii S. A. Kabal’nova N. N. Murinov Yu. I. 《Russian Journal of General Chemistry》2011,81(7):1543-1546
Oxidation of 5-hydroxy-6-methyluracil with molecular oxygen in the presence of copper(II) chloride involves formation of a
2 : 1 complex with copper(II). The rates of consumption of initial 5-hydroxy-6-methyluracil and oxygen were determined in
the temperature range from 40 to 80°C. A probable reaction mechanism implies fixation and activation of molecular oxygen on
the copper(II) complex with 5-hydroxy-6-methyluracil with formation of active oxygen species that are responsible for hydroxylation
of the double C5=C6 bond in the uracil molecule. 相似文献
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Yu. I. Murinov T. R. Nugumanov S. P. Ivanov M. E. Kletskii I. F. Kamaletdinov V. I. Minkin 《Chemistry of Heterocyclic Compounds》2009,45(4):461-467
It has been discovered experimentally that 5,5,6-trihydroxy-6-methylpyrimidine-2,4-dione is formed on oxidizing 5-hydroxy-6-methyluracil
with molecular oxygen in aqueous medium in the presence of copper(II) chloride. Ab initio and DFT calculations on the 6-31G*
basis, both in the gas phase and allowing for solvent, showed that the process proceeds with the direct participation of an
activated oxygen molecule on the complex CuCl2·(5-hydroxy-6-methyluracil)2.
Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 4, pp. 586-593, April, 2009. 相似文献
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Baeva L. A. Biktasheva L. F. Nugumanov T. R. Fatykhov A. A. 《Russian Journal of Organic Chemistry》2021,57(12):1948-1954
Russian Journal of Organic Chemistry - Previously unknown 5-alkyl-1,3-bis[(alkylsulfanyl)methyl]-1,3,5-triazinan-2-ones have been synthesized by three-component condensation of available... 相似文献
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Petrova S. F. Nugumanov T. R. Antipin A. V. Kabal’nova N. N. Murinov Yu. I. Ivanov S. P. 《Russian Journal of General Chemistry》2021,91(3):369-372
Russian Journal of General Chemistry - 5-Hydroxy-6-methyluracil was found to be oxidized by molecular oxygen in an alkaline aqueous solution. The effect of temperature, concentration of alkali and... 相似文献
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S.?F.?Petrova T.?R.?Nugumanov L.?V.?Spirikhin Yu.?I.?Murinov S.?P.?IvanovEmail author 《Russian Journal of General Chemistry》2018,88(6):1076-1080
Dissociation constants of 5-methoxy-6-methyluracil, 5-methoxy-1,6-dimethyluracil and 5-methoxy-3,6-dimethyluracil in water are determined. Basing on the obtained рKа1 values, the content of anions in aqueous alkaline solution of 5-methoxy-6-methyluracil was calculated. The results were confirmed by the use of model compounds: 5-methoxy-1,6-dimethyluracil and 5-methoxy-3,6-dimethyluracil using the NMR spectroscopy. 相似文献
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A new method was examined for the synthesis of multinuclear systems based on dihydroquinoline and quinoline, consisting of the interaction of arylidene--naphthylamines with indandione-1, 3. The reaction of arylidene anilines with indandione-1,3 leads to the formation of arylidenindandiones-1, 3. 相似文献