Reaction of N-1 (2, 2-dichloroalkylidene) amines, prepared by chlorination of aliphatic aldimines with N-chlorosuccinimide, with excess of potassium cyanide in methanol gave β- chloro-α-cyanoenamines. When the reaction was carried out for a longer period, α- chloroimidates were isolated (except for Nt-Bu compounds). Reaction of the α- chloroaldimines with potassium cyanide in dimethylsulphoxide at 70° gave 1, 2- ...