Zobrazeno 1 - 10
of 52
pro vyhledávání: '"T. P. Efimova"'
Autor:
T. V. Efimova, A. G. Beresneva
Publikováno v:
Sovremennye Issledovaniâ Socialʹnyh Problem, Vol 0, Iss 8, Pp 108-116 (2016)
В статье рассматривается понятие подростковой агрессивности и ее проявление в сети Интернет. Дается определение Интернета как социаль
Externí odkaz:
https://doaj.org/article/706a7134c9634b8c8ca80814776c1f20
Publikováno v:
Chemistry of Heterocyclic Compounds. 57:1002-1006
Reactions of 1-amino-2-nitroguanidine with isatins leading to the formation of new β-(2-nitro)guanidinohydrazones of isatin, which exist as E/Z-isomers in regards to the azomethine fragment, were studied. It was found that the conditions of the reac
Publikováno v:
Russian Journal of General Chemistry. 90:1403-1407
The reaction of N-amino-N″-nitroguanidine with carboxylic acid chlorides at room temperature gave the corresponding N-(N″-nitroguanidino)carboxamides which underwent cyclization on heating in aqueous alkali to afford N-nitro-1,2,4-triazol-3-imine
Publikováno v:
Chemistry of Heterocyclic Compounds. 56:233-236
The reactions of 1-amino-2-nitroguanidine with α-ketocarboxylic acids gave substituted hydrazones of α-ketocarboxylic acids, the cyclization of which depended on the geometry of the azomethine moiety. It was established that the obtained hydrazones
Publikováno v:
Nauka ta progres transportu, Vol 36, Pp 58-63 (2010)
In the article the calculation formulas for determination of unloadings (finishings loadings) of wheels and bendings of a spring suspension of 8-wheel electric locomotive DS 3 with the hauling transmission of the second kind at the transmission of tr
Externí odkaz:
https://doaj.org/article/045feb4a62a44098a240c30a5e71a01d
Publikováno v:
Russian Journal of General Chemistry. 88:1381-1384
The reaction of 1-amino-2-nitroguanidine with α-diketones (butane-2,3-dione and 1,2-diphenylethanedione) produced new specimens of nitroamino-containing 1,2,4-triazines. The structure of the synthesized compounds of linear and heterocyclic series wa
Publikováno v:
Russian Journal of General Chemistry. 85:2583-2591
The reactions of 1-amino-2-nitroguanidine with glyoxal under conditions of acidic and alkaline catalysis have been comprehensively studied. The obtained glyoxal dihydrazone, 3-nitroamino-1,2,4-triazine sodium salt, 5-hydroxy-4,5-dihydro-3-nitroamino-
Publikováno v:
Russian Journal of General Chemistry. 85:1623-1628
A new approach to the synthesis of 3,5-dimethyl-N-nitro-1H-pyrazole-1-carboxamidine was developed based on condensing 1-amino-2-nitroguanidine with pentane-2,4-dione under alkaline catalysis. The known method of its preparation in the presence of ace
Publikováno v:
Mendeleev Communications. 26:323-325
Reaction of 1-amino-2-nitroguanidine with alkyl 3-bromo-3-nitropropenoates affords 3-nitroimino-6-nitromethyl-4,5-dihydro-(2H)-1,2,4-triazin-5-one, whose structure was characterized by IR, UV, NMR spectroscopy and X-ray single crystal analysis.
Publikováno v:
Russian Journal of General Chemistry. 84:2397-2400
Ability of β-oxoalkanesulfonic acids and their esters to enter into the reactions characteristic for CH-acids (azocoupling, nitrosation, aldol condensation, Michael reaction) was demonstrated. New polyfunctional aliphatic sulfonic acids were synthes