Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 930-36-9, name is 1-Methylpyrazole, A new synthetic method of this compound is introduced below., Safety of 1-Methylpyrazole
N-methylpyrazole (1.0 g, 1 eq.) was dissolved in N,N-dimethylformamide (2.8 ml, 3 eq.), phosphorus oxychloride (1.3ml, 1.2 eq.) was added dropwise at 90 C over about 1 h. The mixture was reacted for another 2 h and then cooled. The reaction liquid was poured into iced water and adjusted with 10% aqueous sodium hydroxide solution to PH 4?5, extracted four times with dichloromethane, rinsed with water twice, and separated by column chromatography to give 600 mg product
The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.
Reference:
Patent; Shanghai Institute Of Materia Medica Chinese Academy of Sciences; SHEN, Jianhua; WANG, Yiping; CHEN, Xinde; XU, Wenwei; WANG, Kai; (84 pag.)EP3239135; (2017); A1;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics