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. 2820-37-3, name is 3,4-Dimethyl-1H-pyrazole belongs to pyrazoles-derivatives compound, it is a common compound, a new synthetic route is introduced below. HPLC of Formula: C5H8N2
145 Kg of 3,4-dimethylpyrazole obtained after post-treatment of reaction zone B was dissolved in 200 Kg of ethanol and 110 Kg of water.After the mixed solution is placed in the corresponding storage tank, the reaction zone C of the microchannel reactor is preheated to about 45 C, wherein the reaction CThe zone is composed of 3 microchannel reaction tablets with a liquid holding capacity of 200 mL, wherein the ethanol solution of 3,4-methylpyrazole and 174 Kg areThe amount of phosphoric acid with a fraction of 85% is 2.50 L/min and 1.02 L/min, the residence time is about 10 s, cooling, crystallization, overFiltration, drying to obtain about 281.2Kg of white powdery solid, namely 3,4-dimethylpyrazole phosphate, the yield is 95.9%, the purity is96.2% (HPLC).
The synthetic route of 2820-37-3 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; Sinochem Agricultural (Linyi) Research And Development Center Co., Ltd.; Sun Yingxiang; Wei Yanqing; Liu Xiaobo; Zhang Xixing; (17 pag.)CN109574935; (2019); A;,
Pyrazole – Wikipedia,
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