Related Products of 685-88-1, These common heterocyclic compound, 685-88-1, name is Diethyl fluoromalonate, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.
To diethyl 2 fluoromalonate ester (1.0 g, 5.617 mmol) was added ethanol (10 ml), water (10ml), and lithium hydroxide monohydrate (0.943 g, 22.47mmol), then the reaction was stirred well for 16h at 50C. Then the reaction mixture was cooled to room temperature and concentrated under reduced pressure. The residue was diluted in MTBE and water, then mixture was acidify with 6N HCl and then extracted with MTBE (5 x 50 ml). The combined organic layer were dried over Na2SO4, filtered and concentrated under reduced pressure to give 400 mg (yield 58%) of a white solid corresponding to 2-fluoromalonic acid. The crude product used in the next step without further purification. Synthesis of 2,4-dichloro-3-fluoroquinoline, intermediate 348-I-2
The synthetic route of 685-88-1 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; GENOSCIENCE PHARMA; BRUN, Sonia; BERET, Antoine; BASSISSI, Firas; HALFON, Philippe; COURCAMBECK, Jerome; (275 pag.)WO2017/191599; (2017); A1;,
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