Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12258/18061
Title: New methods of synthesis, structure and aminomethylation of 4-imino-2-(dicyanomethylene)-3-azaspiro[5.5]undecane-1,5-dicarbonitrile
Authors: Dotsenko, V. V.
Доценко, В. В.
Aksenov, N. A.
Аксенов, Н. А.
Aksenova, I. V.
Аксенова, И. В.
Shcherbakov, S. V.
Щербаков, С. В.
Ovcharov, S. N.
Овчаров, С. Н.
Keywords: 2,4-diamino-5,6,7,8-tetrahydronaphthalene-1,3-dicarbonitrile;cyclohexanone;malononitrile;aminomethylation;4-imino-2-(dicyanomethylene)-3-azaspiro[5.5]undecane-1,5-dicarbonitrile;2-aminopropene-1,1,3-tricarbonitrile
Issue Date: 2021
Publisher: Pleiades journals
Citation: Kurskova, A.O.; Dotsenko, V. V.; Frolov, K. A.; Aksenov, N. A.; Aksenova, I. V.; Shcherbakov, S. V.; Ovcharov, S. N.; Krivokolysko D. S.; Krivokolysko, S. G. New methods of synthesis, structure and aminomethylation of 4-imino-2-(dicyanomethylene)-3-azaspiro[5.5]undecane-1,5-dicarbonitrile // Russian Journal of General Chemistry. - 2021. - Том 91. - Выпуск 6. - Стр.: 971 - 984
Series/Report no.: Russian Journal of General Chemistry
Abstract: Sequential reaction of cyclohexanone with malononitrile and2-aminopropene-1,1,3-tricarbonitrile in the presence of potassium hydroxide orsodium ethylate in ethanol gave4-imino-2-(dicyanomethylene)-3-azaspiro[5.5]undecane-1,5-dicarbonitrile. Thelatter reacted with primary amines and an excess of formaldehyde to form new2-(dicyanomethylene)-3,7-diazaspiro[bicyclo[3.3.1]non-3-ene-9,1′-cyclohexane]-1.5-dicarbonitrilederivatives. Contrary to the literature data, the reaction of cyclohexanone with2-aminopropene-1,1,3-tricarbonitrile in benzene in the presence of piperidineand glacial acetic acid led to the formation of2,4-diamino-5,6,7,8-tetrahydronaphthalene-1,3-dicarbonitrile
URI: http://hdl.handle.net/20.500.12258/18061
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