Zobrazeno 1 - 10
of 81
pro vyhledávání: '"N. A. Kostikova"'
Publikováno v:
Тонкие химические технологии, Vol 18, Iss 3, Pp 187-218 (2023)
Objectives. To develop a methodology for the quantitative assessment of new technologies in accordance with the principles of best available technologies (BAT). To evaluate the developed technologies of low-tonnage chemical production of tetramethylt
Externí odkaz:
https://doaj.org/article/1fbc1ec0e162424fa7b52d5d58820c23
Publikováno v:
Russian Chemical Bulletin. 71:1801-1805
Autor:
Natalya G. Kolotyrkina, Tatyana N. Vol'khina, Galina А. Gazieva, Marina А. Es’kova, N. N. Kostikova, Sergei А. Serkov, Natalya V. Sigay
Publikováno v:
Chemistry of Heterocyclic Compounds. 57:646-655
A method for the synthesis of 1,3-dialkyl-4-[(arylmethylidene)amino]glycolurils was developed based on nucleophilic substitution of the sulfur atom with the oxygen atom in the corresponding thioglycolurils via alkylation of the latter followed by aci
Autor:
N A Kostikova
Publikováno v:
“Educational bulletin “Consciousness”. 22:21-27
Currently, in the context of the widespread use of e-learning technologies and distance educational technologies, it is necessary to train future teachers, taking into account the peculiarities of solving professional problems in an electronic inform
Autor:
N A Kostikova
Publikováno v:
“Educational bulletin “Consciousness”. 21:13-18
Autor:
Sergey V. Popkov, Natalya V. Sigay, S. A. Serkov, T. V. Nechaeva, N. N. Kostikova, Galina A. Gazieva
Publikováno v:
Russian Chemical Bulletin. 67:1059-1064
A series of 1,3-disubstituted 4-benzylideneamino-5-thioxohexahydroimidazo[4,5-d]imidazol-2(1H)-ones (thioglycolurils) was synthesized via the reaction of 5,7-disubstituted 3-thioxoperhydroimidazo[4,5-e]-1,2,4-triazin-6-ones with hydroxy-, alkoxy-, an
Autor:
Leonid D. Popov, Jacques Royer, Natalya V. Sigay, Angelina N. Kravchenko, S. A. Serkov, N. N. Kostikova, Galina A. Gazieva
Publikováno v:
ARKIVOC, Vol 2017, Iss 3, Pp 279-286 (2017)
Autor:
Ekaterina A. Shishkova, Angelina N. Kravchenko, N. N. Kostikova, Galina A. Gazieva, Yu. V. Nelyubina, N. V. Sigai, S. A. Serkov
Publikováno v:
Chemistry of Heterocyclic Compounds. 49:1097-1101
Previously unknown (Z)-6-aryl(hetaryl)methylidene derivatives of imidazo[4,5-e][1,3]thiazolo[3,2-b]-[1,2,4]triazine-2,7-diones were synthesized by aldol-crotonic condensation of imidazo[4,5-e]-[1,3]thiazolo[3,2-b][1,2,4]triazine-2,7-diones with aroma
Autor:
M. V. Korol’kov, I. I. Sizov, V. A. Semenova, S. A. Sukhotskaya, A. V. Kutkin, N. A. Kostikova, S. M. Kondratenko
Publikováno v:
Russian Journal of Organic Chemistry. 48:864-866
Title compounds (II) and (III) are synthesized starting from ethylene glycol (I) using different amounts of AsCl3.
Autor:
Ekaterina A. Shishkova, Angelina N. Kravchenko, S. A. Serkov, N. N. Kostikova, Yu. V. Nelyubina, N. V. Sigai, Galina A. Gazieva
Publikováno v:
ChemInform. 45