Synthetic Route of 87486-34-8, 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. 87486-34-8, name is 3,5-Dibromo-1-methylpyrazin-2(1H)-one belongs to pyrazines compound, it is a common compound, a new synthetic route is introduced below.
A solution of r -butyl 4-(4-aminobenzoyi)piperazine- 1-carboxylate (2d, 1.7 g, 5.7 mmol, 1 equiv ), 3,5-dibromo-l-methylpyrazin-2(lH)-one (2e, 1.8 g, 6.8 mmol, 1.2 equiv.) and N,N-diisopropylethylamine (1.48 mL, 8.5 mmol, 1.5 equiv.) in N,N-dimethylacetamide (5 mL) was stirred in a sealed vial at 105 C for 30 h. The reaction was cooled to room temperature and EtOAc (20 mL) was then added. The solid precipitate was filtered and dried on high vacuum overnight to provide tert-butyi 4-(4-((6-bromo-4-methyl-3-oxo-3,4- dihydropyrazin-2~yl)amino)benzoy)piperazine-I -carboxylate 2f. The product was carried onto the next step without further purification.
The synthetic route of 3,5-Dibromo-1-methylpyrazin-2(1H)-one has been constantly updated, and we look forward to future research findings.
Reference:
Patent; DANA-FARBER CANCER INSTITUTE, INC.; GRAY, Nathanael S.; WANG, Jinhua; DOBROVOLSKY, Dennis; (224 pag.)WO2019/148150; (2019); A1;,
Pyrazine – Wikipedia,
Pyrazine | C4H4N2 – PubChem