Taylor, Edward C.; Berrier, John V. published an article in 1977, the title of the article was Pteridines. Part XLII. Synthesis of some benzo[g]pteridines. A novel aromatization reaction.Name: 2-Aminomalononitrile 4-methylbenzenesulfonate And the article contains the following content:
The benzopteridine I (R = NH2, R1 = R2 = H) was prepared by condensing 6-chloro-2-oximinocyclohexanone-HCl with H2NCH(CN)2.4-MeC6H4SO3H, aromatizing the quinoxaline oxide II by heating with HOAc, and condensing 2-amino-3-cyanoquinoxaline (III) with guanidine-HCl. Condensation of III with HC(OEt)3 gave I (R-R2 = H). I (R = NH2, R1 = R2 = H) was treated with HCl to give benzo[g]pterin. I [R = NH2, R1R2 = (CH)4] was obtained from 2-oximino-1-tetralone. The experimental process involved the reaction of 2-Aminomalononitrile 4-methylbenzenesulfonate(cas: 5098-14-6).Name: 2-Aminomalononitrile 4-methylbenzenesulfonate
The Article related to benzopteridine, naphthopterdine, benzopterin, pterin condensed, aromatization tetrahydroquinoxaline oxide, guanidine aminocyanoquinoxaline condensation, Heterocyclic Compounds (More Than One Hetero Atom): Purines and Pteridines and other aspects.Name: 2-Aminomalononitrile 4-methylbenzenesulfonate
Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts