Mn. Elinson et al., ELECTROCHEMICAL CYCLOTRIMERIZATION OF CYANOACETIC ESTER INTO NS-1,2,3-TRICYANOCYCLOPROPANE-1,2,3-TRICARBOXYLATE, Mendeleev communications, (5), 1993, pp. 192-193
Electrolysis of cyanoacetic ester in the presence of NaBr in acetone o
r acetonitrile in the undivided cell leads to s-1,2,3-tricyanocyclopro
pane-1,2,3-tricarboxylate.