Zobrazeno 1 - 8
of 8
pro vyhledávání: '"V. V. Tolstyakov"'
Autor:
O. O. Gololobova, V. V. Tolstyakova
Publikováno v:
Людина і довкілля: Проблеми неоекології, Iss 29 (2018)
Studies are devoted to the ecological assessment of the pond aquatic ecosystem components, Bobrivka village, Kharkiv district, Kharkiv oblast. Purpose. In order to achieve the goal, it was tasked to determine the seasonal redistribution of hydrochemi
Externí odkaz:
https://doaj.org/article/f9723a9f4ccf4b38b1e55a81afa12cbe
Publikováno v:
Russian Journal of General Chemistry. 91:72-76
A series of new 6-phosphonylated 1H-imidazo[2,1-c][1,2,4]triazoles was synthesized by the reaction of diethyl chloroethynylphosphonate with 2-substituted 3-amino-1,2,4-triazoles followed by 5-endo-dig cyclization. It was found that 3-amino-5-bromo-1,
Autor:
Aleksandra V. Protas, V. V. Tolstyakov, S. S. Chuprun, E. A. Popova, O. S. Zarubina, Rostislav E. Trifonov, E. S. Tolstobrova
Publikováno v:
Russian Journal of Organic Chemistry. 52:1681-1685
New tetrazolyl derivatives of L- and D-phenylalanine were synthesized by azidation of n-propyl esters of (2S)- and (2R)-2-{[(9H-fluoren-9-ylmethoxy)carbonyl]amino}-3-(4-aminophenyl)propionic acids and by a series of subsequent chemical transformation
Publikováno v:
Russian Chemical Bulletin. 58:2356-2361
A method for the preparation of new 3-nitro-1,2,4-triazole derivatives has been suggested based on modification of the N-hydroxymethyl group by nitration and nucleophilic substitution reactions. Thermal stability of 3-nitro-1,2,4-triazole N-nitroxy-
Publikováno v:
Russian Journal of General Chemistry. 77:2179-2185
The use of hydrazine as reagent in nucleophilic substitution and reduction in the 1,2,4-triazole series in combination with introduction of labile protecting groups makes it possible to synthesize 5-hydrazino-3-nitro-1H-1,2,4-triazole and 3-chloro-5-
Autor:
V. V. Tolstyakov, I. V. Tselinskii
Publikováno v:
Russian Journal of General Chemistry. 74:399-404
A diphenylmethyl protective group is suggested for use in the synthesis of 5-R-3-nitro-1H-1,2,4-triazoles unsubstituted at the cyclic nitrogen atom, via nucleophilic substitution of 5-bromo- and 5-methylsulfonyl groups.
Publikováno v:
ChemInform. 42
The novel title compounds are synthesized with medium yields starting from N-hydroxymethyltriazole derivatives.
Autor:
M. S. Pevzner, V. V. Tolstyakov
Publikováno v:
ChemInform. 29