As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 450-88-4 name is 1-Bromo-4-fluoro-2-methoxybenzene, This compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below. 450-88-4
Intermediate Example Int20.014-(4-bromo-3-methoxyphenoxy)-1 -methylpiperidine To a stirred suspension of sodium hydride (1.76 g; 60% w/w sodium hydride in oil) in DMF (55 mL) was added 1 -methylpiperidin-4-ol (3.37 g) at 0 C. The mixture was stirred at room temperature for 30 minutes. 1 -bromo-4-fluoro-2- methoxybenzene (3.0 g) was added and the mixture was stirred at 100 C for 1 h. Water was added and the mixture was extracted with ethyl acetate. The organic phase was washed with saturated sodium chloride solution, dried (sodium sulfate) and the solvent was removed in vacuum. Aminophase-silica- gel chromatography gave 3.65 g of the title compound.
At the same time, in my other blogs, there are other synthetic methods of this type of compound, 1-Bromo-4-fluoro-2-methoxybenzene, and friends who are interested can also refer to it.
Reference:
Patent; BAYER PHARMA AKTIENGESELLSCHAFT; SCHULZE, Volker; KOSEMUND, Dirk; SCHIROK, Hartmut; BADER, Benjamin; LIENAU, Philip; WENGNER, Antje Margret; BRIEM, Hans; HOLTON, Simon; SIEMEISTER, Gerhard; PRECHTL, Stefan; KOPPITZ, Marcus; STOeCKIGT, Detlef; PRIEN, Olaf; WO2011/157688; (2011); A1;,
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