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Title: Aminomethylation of 2,4-dioxo-3-azaspiro[5.5]undecane-1,5-dicarbonitrile. Efficient synthesis of new 3,7-diazaspiro- [bicyclo[3.3.1]nonane-9,1-cyclohexane] derivatives
Authors: Dotsenko, V. V.
Доценко, В. В.
Aksenov, N. A.
Аксенов, Н. А.
Aksenova, I. V.
Аксенова, И. В.
Issue Date: 2018
Citation: Khrustaleva, AN; Frolov, KA; Dotsenko, VV; Aksenov, NA; Aksenova, IV; Krivokolysko, BS; Krivokolysko, SG. Aminomethylation of 2,4-Dioxo-3-azaspiro[5.5]undecane-1,5-dicarbonitrile. Efficient Synthesis of New 3,7-Diazaspiro- [bicyclo[3.3.1]nonane-9,1-cyclohexane] Derivatives // RUSSIAN JOURNAL OF ORGANIC CHEMISTRY. - 2018. -Том: 54. - Выпуск: 12. - Стр.: 1803-1806
Series/Report no.: Russian Journal of Organic Chemistry
Abstract: 2,4-Dioxo-3-azaspiro[5.5]undecane-1,5-dicarbonitrile reacted with primary amines and formaldehyde on heating in boiling ethanol to give mixtures of 7-alkyl-2,4-dioxo-3,7-diazaspiro[bicyclo[3.3.1]nonane- 9,1-cyclohexane]-1,5-dicarbonitriles and their ammonium salts. The former were isolated in 26-71% after acidification of the reaction mixture
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