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Your search keyword '"Rakitin, O. A."' showing total 4 results
Start Over Author "Rakitin, O. A." Topic chemical reactions
4 results on '"Rakitin, O. A."'

1. Synthesis of 5-(1,2,5-oxadiazol-3-yl)-1 H-etrazoles from 3-cyano-1,2,5-oxadiazoles.

Author

Godovikova, T., Vorontsova, S., Konyushkin, L., Firgang, S., and Rakitin, O.

Subjects
ORGANIC synthesis, AZOLES, CHEMICAL reactions, CHEMICAL reagents, AZIDES, RING formation (Chemistry), NITROSATION, FURAZANS
Abstract

number of 5-(1,2,5-oxadiazol-3-yl)-1 H-tetrazoles were obtained in high yields by reactions of 3-cyano-1,2,5-oxadiazoles with sodium azide or by nitrosation of furazan-based amidrazones, which are easily prepared from the same starting reagents. [ABSTRACT FROM AUTHOR]

Published
2009
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2. Synthesis of 4,8-dihydro-7 H-[1,2]dithiolo[3,4- b][1,2,5]oxadiazolo-[3,4- e]pyrazine-7-thione as a new heterocyclic system.

Author

Konstantinova, L., Knyazeva, E., Bagryanskaya, I., Obruchnikova, N., and Rakitin, O.

Subjects
CHEMICAL reactions, OXADIAZOLES, SULFUR monochloride, HETEROCYCLIC compounds, NUCLEAR magnetic resonance spectroscopy, MASS spectrometry
Abstract

The article discusses a study regarding the reactions of 1,2,5-oxadiazoles synthesized with sulfur monochloride as a heterocyclic material. The study uses various methods which include nuclear magnetic resonance (NMR) spectroscopy, elemental analysis, and mass spectroscopy. Result shows that N-ethyl and N-isopropyl groups can interact with sulfur monochloride.

Published
2014
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3. Thiete-2-thiones in the synthesis of 1,3-thiazine-4-thiones from 1,2-dithiole-3-thiones.

Author

Ogurtsov, V., Karpychev, Yu., and Rakitin, O.

Subjects
CHEMICAL research, CHEMICAL reactions, THIONES, CHEMICAL synthesis, SODIUM cyanide, TRIPHENYLPHOSPHINE, ACETONITRILE
Abstract

The article discusses a research based on the synthesis of thiete-2-thione by the reaction of 1, 2-dithiole-3-thione with a number of sulfur-abstracting agents. It mentions that the reaction proceeds rapidly with sodium cyanide and triphenylphosphine at room temperature, and it is also accompanied by deep resinification. It also includes that the use of trimethyl phosphite in acetonitrile indicates optimum conditions, affording thiete-2-thione in 92 percent yield of the product.

Published
2012
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