Related Products of 1000574-79-7, A common heterocyclic compound, 1000574-79-7, name is 2-Bromo-4-(difluoromethoxy)aniline, molecular formula is C7H6BrF2NO, 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.
(25a) N-[2-Bromo-4-(difluoromethoxy)phenyl]formamide Into acetonitrile (80 mL), 2-bromo-4-(difluoromethoxy)aniline (4.40 g, 18.5 mmol) and formic acid (1.1 mL, 27.5 mmol) were dissolved, to which 4-(4,6-dimethoxy-1,3,5-triazin-2-yl)-4-methylmorpholinium chloride (7.7 g, 28 mmol) and 4-methylmorpholine (3 mL, 27 mmol) were added, followed by stirring at room temperature for six hours. Ethyl acetate and water were added for extraction, and the resulting organic layer was sequentially washed with water and saturated brine and then dried over anhydrous sodium sulfate. After filtration, the solvent was distilled off under reduced pressure and the residue thus obtained was purified by silica gel column chromatography (hexane : ethyl acetate, 100 : 0 – 60 : 40, V/V) to give the desired title compound (4.1 g, yield 83%). 1H-NMR (CDCl3) 5: 6.47 (1H, t, J = 73.0 Hz), 7.13 (1H, dd, J = 9.1, 2.6 Hz), 7.39 (1H, d, J = 2.6 Hz), 7.58 (1H, br s), 8.41 (1H, d, J = 9.1 Hz), 8.49 (1H, s).
The synthetic route of 1000574-79-7 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; Daiichi Sankyo Company, Limited; AOKI, Kazumasa; MATSUI, Satoshi; YOSHIKAWA, Kenji; SHIMIZU,Hiroki; SASAKI, Junko; NAKAJIMA, Katsuyoshi; KANNO, Osamu; OIZUMI, Kiyoshi; EP2565185; (2013); A1;,
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