Adding a certain compound to certain chemical reactions, such as: 2075-46-9, name is 4-Nitro-1H-pyrazole, belongs to pyrazoles-derivatives compound, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 2075-46-9, name: 4-Nitro-1H-pyrazole
General procedure: To a solution of compound 18 (1.1 g, 10.0 mmol) and K2CO3 (2.1 g,15.0 mmol) in MeCN (20 mL) was added iodomethane (1.6 g,11.0 mmol) at room temperature. The reaction mixture was stirredovernight at 82 C. TLC showed the completion of the reactin. The resultingmixture was removed under vacuum. Water (20 mL) was addedto the residue, and the resultant mixture was extracted with EtOAc(2 ¡Á 50 mL). The organic layers were then washed with water followed by brine. The organic layers were dried over anhydrous sodium sulfate,filtered, and concentrated to provide 19a as a yellow solid(1.2 g,9.8 mmol, 98%) without further purification. MS (ESI) m/z: 128.1 [M+H]+
At the same time, in my other blogs, there are other synthetic methods of this type of compound, 4-Nitro-1H-pyrazole, and friends who are interested can also refer to it.