Electric Literature of 15988-11-1, In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 15988-11-1, name is 4-Phenyl-1,2,4-triazolidine-3,5-dione belongs to Triazoles compound, it is a common compound, a new synthetic route is introduced below.
General procedure: Dimedone (0.14 g, 1 mmol), benzaldehyde (0.1 g, 1 mmol), and 4-phenylurazole (0.177 g, 1 mmol) were mixed with PEG-SO3H (0.6 g, 0.1 mmol) and the obtained mixture was stirred magnetically at 80 C for 40 min. After the completion of the reaction warm water (20 mL) was added and the mixture stirred for about 5 min. The insoluble crude product was filtered and recrystallized from EtOH/H2O 4:1 and the pure product was obtained (0.352 g, 91%). In order to recover the catalyst, the filtrate was dried under reduced pressure and recovered catalyst was washed with diethyl ether and reused after drying under reduced pressure. The equivalent procedure was used for the synthesis of triazolo[1,2-a]indazole-tetraones.
The synthetic route of 4-Phenyl-1,2,4-triazolidine-3,5-dione has been constantly updated, and we look forward to future research findings.
Reference:
Article; Hasaninejad, Alireza; Zare, Abdolkarim; Shekouhy, Mohsen; Tetrahedron; vol. 67; 2; (2011); p. 390 – 400;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics