Synthesis of 2-arylimidazo[4,5-d][1,2,3]triazoles from a 4-nitroimidazol-5-yl phosphoramidate and aryl isocyanates was written by Taher, A.;Eichenseher, S.;Weaver, G. W.. And the article was included in Tetrahedron Letters in 2000.Quality Control of 3-Cyanophenylisocyanate This article mentions the following:
The synthesis of a series of 2-aryl-2H,4H-imidazo[4,5-d][1,2,3]triazoles is reported. These compounds are obtained in moderate to good yield by reaction of tri-Et N-1-ethyl-2-methyl-4-nitro-1H-imidazol-5-yl phosphoramidate with aryl isocyanates. In the experiment, the researchers used many compounds, for example, 3-Cyanophenylisocyanate (cas: 16413-26-6Quality Control of 3-Cyanophenylisocyanate).
3-Cyanophenylisocyanate (cas: 16413-26-6) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Polyesters are important plastics, with monomers linked by ester moieties. Because of their lack of hydrogen-bond-donating ability, esters do not self-associate. Consequently, esters are more volatile than carboxylic acids of similar molecular weight.Quality Control of 3-Cyanophenylisocyanate
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics