Application of 884494-49-9, With the rapid development and complex challenges of chemical substances, the synthesis of new drugs is usually one of the most effective ways to increase yield.884494-49-9, name is 2-Chloro-5-fluoro-4-iodopyridine, molecular formula is C5H2ClFIN, molecular weight is 257.432, as common compound, the synthetic route is as follows.
A batch with 2-chloro-5-fluoro-4-iodopyridine [CAS-RN: 884494-49-9] (3000 mg; 11.65 mmol), (4- fluoro-3-methoxyphenyl)boronic acid [CAS-RN: 854778-31-7] (1981 mg; 11.65 mmol) and [1,1 ‘- bis(diphenylphosphino)ferrocene]dichloropalladium(II) [CAS-RN: 72287-26-4] (952 mg; 1.17 mmol) in 1 ,2-dimethoxyethane (30.0 mL) and 2 M aqueous solution of potassium carbonate (23 mL) was degassed using argon. The batch was stirred under an atmosphere of argon for 4 hours at 100 C. After cooling, the batch was diluted with ethyl acetate and THF and washed with a saturated aqueous solution of sodium chloride. The organic layer was filtered using a Whatman filter and concentrated. The residue was purified by column chromatography (hexane to hexane / ethyl acetate 50%) to give the title compound (2600 mg; 10.2 mmol). ‘H-NMR (400MHZ, DMSO-de): delta [ppm]= 3.92 (s, 3H), 7.28 (ddt, 1H), 7.39 (dd, 1H), 7.48 (dd, 1H), 7.86 (d, 1H), 8.55 (d, 1H).
Statistics shows that 884494-49-9 is playing an increasingly important role. we look forward to future research findings about 2-Chloro-5-fluoro-4-iodopyridine.
Reference:
Patent; BAYER AKTIENGESELLSCHAFT; BAYER PHARMA AKTIENGESELLSCHAFT; LUeCKING, Ulrich; HOG, Daniel; CHRIST, Clara; SACK, Ulrike; SIEGEL, Franziska; LIENAU, Philip; WERBECK, Nicolas; (195 pag.)WO2018/177899; (2018); A1;,
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