Evtushok, Vasilii E. published the artcileSynthesis of pyrazolo- and [1,2,4]triazolo-[1,5-a]quinolin-9-ols by cycloaddition to 8-hydroxyquinoline N-imide, Product Details of C8H4N2, the main research area is amino hydroxyquinolinium mesitylenesulfonate internal alkyne cycloaddition; alkene amino hydroxyquinolinium mesitylenesulfonate cycloaddition; pyrazoloquinolinol preparation; nitrile amino hydroxyquinolinium mesitylenesulfonate cycloaddition; triazoloquinolinol preparation.
The reaction of 1-amino-8-hydroxyquinolinium mesitylenesulfonate with alkenes and alkynes containing electron-withdrawing substituents was performed in MeCN-K2CO3 system and gave the resp. 9-hydroxypyrazolo[1,5-a]quinolines I [R = H, CO2Me, Ph; R1 = Ac, CO2Me, CO2Et, COPh]. The reaction with acetonitrile and aromatic nitriles in aqueous 2N KOH solution gave the resp. 9-hydroxy[1,2,4]triazolo[1,5-a]quinolines II [R = Me, C6H5, 2-NCC6H4, 3,4-(MeO)2C6H3].
Chemistry of Heterocyclic Compounds (New York, NY, United States) published new progress about 1,3-Dipolar cycloaddition reaction. 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, Product Details of C8H4N2.
Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts