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. 2075-46-9, name is 4-Nitro-1H-pyrazole, A new synthetic method of this compound is introduced below., name: 4-Nitro-1H-pyrazole
Add 4-nitropyrazole (5g), K2CO3 (9.17g) to a 100mL eggplant-shaped bottle,2-bromoethyl methyl ether (7.38g),KI (1.47g) and 63mL CH3CN, reflux overnight.At the end of the reaction, spin dry under reduced pressure, add H2O 75mL, EA 50mL × 3, combine the organic layers, wash with saturated brine, and dry the organic phase with anhydrous Na2SO4.Dry under reduced pressure to give an oily 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; China Pharmaceutical University; Chinese Academy Of Medical Sciences Pharmaceutical Institute; Zhang Dayong; Zhang Tiantai; Yin Yuan; Chen Chengjuan; Yu Runan; Shu Lei; (38 pag.)CN110885331; (2020); A;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics