An article Reactivity of some 3-substituted-6,8-dimethylchromones toward some nucleophilic reagents WOS:000521606600001 published article about RING-CLOSURE REACTIONS; ANTIANAPHYLACTIC AGENTS; 3-SUBSTITUTED CHROMONES; ANTITUMOR-ACTIVITY; FACILE SYNTHESIS; ANTIOXIDANT; COMPLEXES; CU(II); SERIES in [Badran, Al-Shimaa; El-Gohary, Nasser M.; Ibrahim, Magdy A.; Hashiem, Salsabeel H.] Ain Shams Univ, Fac Educ, Dept Chem, Cairo 11711, Egypt in 2020.0, Cited 36.0. Application In Synthesis of 1H-1,2,4-Triazol-5-amine. The Name is 1H-1,2,4-Triazol-5-amine. Through research, I have a further understanding and discovery of 61-82-5
The reactivity of 3-substituted-6,8-dimethylchromone derivatives 1-5 was investigated toward selected nucleophilic reagents namely; 3-amino-1,2,4-triazole, 2-aminobenzimidazole, 7-chloro-4-hydrazinoquinoline, and 5,6-diphenyl-3-hydrazino-1,2,4-triazine. These nucleophiles were allowed to react with 6,8-dimethylchromone-3-carboxaldehyde (1) through condensation with the aldehyde group with opening of gamma-pyrone ring giving compounds 6, 7, 10, and 11. Reactions with 6,8-dimethylchromone-3-carbonitrile (2), and 6,8-dimethylchromone-3-carboxylic acid (3) occur via attack at position 2 in both compounds followed by cycloaddition onto the nitrile function (in case of carbonitrile 2) or decarboxylation and cyclocondensation with the carbonyl group (in case of carboxylic acid 3). The current nucleophilic reagents reacted with simple condensation products 4 and 5, in boiling dioxane, through nucleophilic addition at the exocyclic vinyl bond followed by addition at the C(sic)N group giving 6,8-dimethylchromone linked various heterocyclic systems 20-27.
About 1H-1,2,4-Triazol-5-amine, If you have any questions, you can contact Badran, A; El-Gohary, NM; Ibrahim, MA; Hashiem, SH or concate me.. Application In Synthesis of 1H-1,2,4-Triazol-5-amine
Reference:
Article; Safari, Niloufar; Shirini, Farhad; Tajik, Hassan; Journal of Molecular Structure; vol. 1201; (2020);,
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