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. 7477-10-3, name is 6-Chloro-5-nitronicotinic acid. A new synthetic method of this compound is introduced below., Formula: C6H3ClN2O4
Methyl 6-chloro-5-nitronicotinate was purchased from Sigma Aldrich or synthesized as follows. Toa solution of 6-chloro-5-nitronicotinic acid (Ark Pharm, Inc., 2.5 g, 12.3 mmol) in dry DMF (30mL) were added K2CO3 (2.5 g, 18.5 mmol) and iodomethane (8.76 g, 61.7 mmol). The solution wasstirred at room temperature for 24 h, then poured onto ice, and extracted with EtOAc (100 mL × 3).The organic layer was washed with H2O (100 mL × 2) and brine (100 mL), and dried over MgSO4.The solvent was evaporated under reduced pressure and the residue was purified by flash columnchromatography (EtOAc/n-hexane = 1/2) to afford 10 (2.4 g, 92%) as a yellow solid.
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Reference:
Article; Takamura, Yuta; Takahashi, Manami; Nishii, Midori; Shibahara, Osamu; Watanabe, Masaki; Fujihara, Michiko; Kakuta, Hiroki; Bioorganic and Medicinal Chemistry Letters; vol. 29; 15; (2019); p. 1891 – 1894;,
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