Adding a certain compound to certain chemical reactions, such as: 873191-23-2, name is 5-(Bromomethyl)-1,3-dimethyl-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 873191-23-2, name: 5-(Bromomethyl)-1,3-dimethyl-1H-pyrazole
Amixture of 83mg G2 (0.25 mmol, 1.00 equiv.), 48 mg S-bromomethyl-ljS-dimethyl-l//-pyrazole (C3) (0.25 mmol, 1.00 equiv.) and 38 mg potassium carbonate (0.28 mmol, 1.10equiv.) in DMF was stirred for 44 h at room temperature then partitioned between 20mL eachwater and 3:1 diethyl etherdichloromethane. The separated aqueous layer was extracted with2x20mL 3:1 diethyl ether:dichloromethane. The combined organic extracts were washedwith 3x20mL water and 20mL brine. The organic separation was dried over magnesiumsulfate, filtered and concentrated in vacuo to afford a yellow glassy solid. The product waspurified by column chromatography on silica gel, eluting with 4% methanol indichloromethane. Purified product G3 isolated as an off-white solid, 73mg.
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Reference:
Patent; AMGEN SF, LLC; WO2006/4925; (2006); A1;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics