A. Khrustaleva, K. Frolov, V. Dotsenko
Dec 1, 2018
Citations
0
Influential Citations
1
Citations
Journal
Russian Journal of Organic Chemistry
Abstract
Abstract2,4-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.