S. V. Fedoseev, K. V. Lipin, O. V. Ershov
Nov 1, 2016
Citations
0
Influential Citations
3
Citations
Journal
Russian Journal of Organic Chemistry
Abstract
A method of synthesis of 9-alkyl-8-methyl-8-methoxy-1,3,6-trioxo-2,7-diazaspiro[4.4]nonane-4-carbonitriles consisting in the reaction of 3-amino-8-hydroxy-1,6-dioxo-2,7-diazaspiro[4.4]non-3-ene-4-carbonitriles with methanol in the presence of sulfuric acid was developed.