Adding a certain compound to certain chemical reactions, such as: 112758-40-4, name is 3-Methyl-1H-pyrazole-4-carbaldehyde, 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 112758-40-4, COA of Formula: C5H6N2O
PREPARATION 21Methyl 2-(4-formyl-3-methyl-pyrazol-1-yl)pyridine-3-carboxylate; A mixture of 3-methyl-1H-pyrazole-4-carbaldehyde (300 mg, 2.72 mmol), potassium carbonate (565 mg, 4.08 mmol), methyl 2-fluoropyridine-3-carboxylate (507 mg, 3.27 mmol) and dimethylformamide (2 mL) is stirred at 60 C. for 16 h. Water is added and the compound is extracted in ethyl acetate. The organic layer is washed with brine, dried over sodium sulfate and solvent is evaporated. The crude mixture is purified by normal phase Isco chromatography using hexane:ethyl acetate, 2:1 as eluent to yield 422 mg of the title compound. MS (m/z): 246 (M+1).
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