Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 40704-11-8, name is 3-Methyl-1H-pyrazole-4-carboxylic acid, A new synthetic method of this compound is introduced below., category: pyrazoles-derivatives
Methyl5-methyl-1H-pyrazole-4-carboxylate. To a solution of 3-methyl-1H-pyrazole-4-carboxylic acid (1.26 g, 10 mmol) in MeOH (100 mL) was added thionyl chloride (5.73 g, 48 mmol) at 0 C. The mixture was stirred for 12 h and then concentrated in vacuo. The residue was quenched with sat. aq. sodium bicarbonate solution and extracted with EtOAc (3X). The combined organic phase was dried over sodium sulfate, filtered and concentrated to provide methyl 3-methyl-1H-pyrazole-4-carboxylate (0.8 g, 57%).
The synthetic route of 40704-11-8 has been constantly updated, and we look forward to future research findings.
Reference:
Article; Gehling, Victor S.; Vaswani, Rishi G.; Nasveschuk, Christopher G.; Duplessis, Martin; Iyer, Priyadarshini; Balasubramanian, Srividya; Zhao, Feng; Good, Andrew C.; Campbell, Robert; Lee, Christina; Dakin, Les A.; Cook, Andrew S.; Gagnon, Alexandre; Harmange, Jean-Christophe; Audia, James E.; Cummings, Richard T.; Normant, Emmanuel; Trojer, Patrick; Albrecht, Brian K.; Bioorganic and Medicinal Chemistry Letters; vol. 25; 17; (2015); p. 3644 – 3649;,
Pyrazole – Wikipedia,
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