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. 37687-18-6, name is 1-(1-Methyl-1h-pyrazol-4-yl)-ethanone belongs to pyrazoles-derivatives compound, it is a common compound, a new synthetic route is introduced below. HPLC of Formula: C6H8N2O
General procedure: Selenium dioxide (8.0 g, 0.072 mol) was dissolved in 50 mL 1,4-dioxane by warming to 50 oC. Compound 53c (16.2 g, 0.072 mol) was added to the resulting solution, and the reaction mixture was heated under reflux for 5 h. The reaction mixture was filtered, and the filtrate was concentrated. The residue was dissolved in 100 mL DCM, triethyl orthoformate (21.5 g, 0.145 mol) and p-toluene sulfonic acid monohydrate (0.3 g, 0.002 mol) were added, and the resulting mixture was heated under reflux for 1 h and concentrated. The residue was purified by silica gel chromatography (DCM)
The synthetic route of 37687-18-6 has been constantly updated, and we look forward to future research findings.
Reference:
Article; Zhan, Zhengsheng; Peng, Xia; Liu, Qiufeng; Chen, Fang; Ji, Yinchun; Yao, Shanyan; Xi, Yong; Lin, Yipeng; Chen, Tiantian; Xu, Yechun; Ai, Jing; Geng, Meiyu; Duan, Wenhu; European Journal of Medicinal Chemistry; vol. 116; (2016); p. 239 – 251;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics