Reference of 143426-52-2, In the chemical reaction process, reaction time, type of solvent, can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product. An updated downstream synthesis route of 143426-52-2 as follows.
To a mixture of methyl 4-ethyl-2-hydroxy-5- ( 4 , 4 , 5, 5- tetramethyl-1, 3, 2-dioxaborolan-2-yl) benzoate (0.54 g) , l-(4- (chloromethyl) henyl) -lH-pyrazole (0.41 g) , 2 M aqueous sodium carbonate solution (1.76 mL) and DME (20 mL) was addedtetrakis (triphenylphosphine) palladium (0) (0.10 g) under an argon atmosphere at room temperature, and the mixture was stirred at 90C overnight. The reaction mixture was dried over anhydrous sodium sulfate, and the. solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate/hexane) to give the title compound (0.45 g) .MS: [M+H]+337.0
According to the analysis of related databases, 143426-52-2, the application of this compound in the production field has become more and more popular.
Reference:
Patent; TAKEDA PHARMACEUTICAL COMPANY LIMITED; SUGIMOTO, Takahiro; SUZUKI, Shinkichi; SAKAMOTO, Hiroki; YAMADA, Masami; NAKAMURA, Minoru; KAMATA, Makoto; SHIMOKAWA, Kenichiro; OGINO, Masaki; KIMURA, Eiji; MURAKAMI, Masataka; YONEMORI, Jinichi; KOJIMA, Takuto; (281 pag.)WO2016/208775; (2016); A1;,
Pyrazole – Wikipedia,
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