Several 1,3, 5-triazine-2,4(1H, 3H)-diones (1 - 5) were newly synthesized by the reaction of N-substituted thiocarboamides with silver cyanate. The structure was confirmed by the X-Ray structure analysis, and the pathway affording them was estimated.
A Convenient Synthesis of Ketenimines from Thioamides with Haloiminium Salts
Ketenimines were conveniently synthesized from N-monosubstituted thioacetamides with dehydrating agents such as 2-chloro-1,3-dimethylimidazolinium chloride or 2-chloro-1-methylpyridinium iodide.