Reference of 1138444-17-3 ,Some common heterocyclic compound, 1138444-17-3, molecular formula is C5H2BrClIN, 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.
6-Bromo-2-chloro-3-iodopyridine (1.50 g, 4.71 mmol) was dissolved in THF (15 mL) and cooled to -78 C, followed by addition of isopropylmagnesium chloride-lithium chloride complex (3.99 mL, 5.18 mmol). The mixture was stirred at -78C for 1 h. 2- (benzyloxy)acetaldehyde (0.849 g, 5.65 mmol) was added and the resulting mixture warmed to 0C and stirred for 2 h. The mixture was treated with saturated NH4C1 and extracted with ethylacetate. The organic layer was washed with brine, dried (Na2SO4), filtered and concentrated in vacuo to gave 2-(benzyloxy)-1-(6-bromo-2-chloropyridin-3-yl)ethanol (1.54g, yield: 95%). MS (M+H): 344.
These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,1138444-17-3, its application will become more common.
Reference:
Patent; MERCK SHARP & DOHME CORP.; DAI, Xing; LIU, Hong; PALANI, Anandan; HE, Shuwen; BROCKUNIER, Linda, L.; NARGUND, Ravi; MARCANTONIO, Karen; ZORN, Nicolas; XIAO, Dong; PENG, Xuanjia; LI, Peng; GUO, Tao; WO2014/123793; (2014); A1;,
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