Abstract Several 3-Ω-amino monosubstituted hydantoins have been obtained in the reaction of isocyanate of glycine ethyl ester with the appropriate aliphatic or aromatic diamine. It was found, that the 3-(aminoaryl) monosubstituted hydantoins may be diazotized and their
![3-[4-(dimethylamino)phenyl]imidazolidine-2,4-dione Structure](https://image.chemsrc.com/caspic/267/111256-82-7.png)
