Synthetic Route of 51776-71-7, A common heterocyclic compound, 51776-71-7, name is 1-Bromo-4-(difluoromethyl)benzene, molecular formula is C7H5BrF2, 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.
In a 10 mL vial charged with [l-[(4,4-difluorocyclohexyl)methyl]-6-(3,5-dimethylisoxazol-4-yl)pyrrolo[3,2-b]pyridin-3- yl]boronic acid (51, 0.05 g, 0.13 mmol) and acetonitrile (4 ml) was added l-bromo-4- (difluoromethyl)benzene (0.05 g, 0.24 mmol), 1M aqueous potassium carbonate (2 ml), and [1, 1′- bis(diphenylphosphino)ferrocene]dichloropalladium(II) (0.01 g, 0.01 mmol). The reaction mixture was heated at 140 C in a microwave reactor for 30 min. The reaction mixture was diluted with water and extracted with ethyl acetate. The organic layer was washed with water and brine. Then, the organic layer was dried over magnesium sulfate and the drying agent removed by filtration. The volatiles were removed from the filtrate under reduced pressure and the crude material was purified by silica gel flash chromatography eluting with 0-50% ethyl acetate in hexane to provide product as a tan solid (P-0608, 18 mg, 28.6%) MS (ESI) [M+H+]+ = 472.0.
The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.
Reference:
Patent; ZHANG, Jiazhong; BUELL, John; CHAN, Katrina; IBRAHIM, Prabha, N.; LIN, Jack; PHAM, Phuongly; SHI, Songyuan; SPEVAK, Wayne; WU, Guoxian; WU, Jeffrey; WO2014/145051; (2014); A1;,
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