Al-Azmi, Amal published the artcileNovel 2H-1,2,3-triazole sodium complex from N-[2-amino-1,2-dicyanovinyl]alkanamides, Category: triazoles, the publication is Heterocycles (2007), 71(10), 2183-2201, database is CAplus.
Diazotization at 0 °C of N-[2-amino-1,2-dicyanovinyl]ethanamide or the propanamide analog prepared from diaminomaleonitrile (DAMN) I using aqueous acetic acid and NaNO2 solution furnished sodium complex II. The x-ray structure of the complex II showed that it is a 1:1 mixture of the neutral 2H-triazole heterocycle III and its anion deprotonated at the central (N) atom of the ring, together with a sodium counterion and two coordinated water mols. However, when the diazotization reaction was carried out in the presence of aqueous HCl, the product was 5-cyano-2H-[1,2,3]triazole-4-carboxylic acid amide monohydrate III. Diazotization of I using aqueous HCl furnished 1H-1,2,3-triazole-4,5-dicarbonitrile IV, whereas with acetic acid there was no reaction, and hence no route analogous to that leading to complex II. The structure of both complex II and the triazole monohydrate III were solved using x-ray crystallog., and the compounds under study were fully characterized using spectroscopic techniques.
Heterocycles published new progress about 53817-16-6. 53817-16-6 belongs to triazoles, auxiliary class Triazoles, name is 1H-1,2,3-Triazole-4,5-dicarbonitrile, and the molecular formula is C4HN5, Category: triazoles.
Referemce:
https://en.wikipedia.org/wiki/1,2,3-Triazole,
Triazoles – an overview | ScienceDirect Topics