Abstract Base treatment of azomalonates derived from N-substituted dialkyl (2- chloroacetamido) malonates results in the formation of 4-substituted alkyl 5-oxo-1, 4, 5, 6- tetrahydro-1, 2, 4-triazine-3-carboxylates. The same malonates coupled with diazotized 2-
![diethyl 2-[(2-chloroacetyl)-phenyl-amino]propanedioate Structure](https://image.chemsrc.com/caspic/245/5634-74-2.png)