Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps,and cheap raw materials. 49669-13-8, name is 2-Acetyl-6-bromopyridine. A new synthetic method of this compound is introduced below., Application In Synthesis of 2-Acetyl-6-bromopyridine
Preparation 31 Synthesis of 2-(6-bromo-pyridin-2-yl)-propan-2-ol Add a solution of methyl magnesium bromide (3.0 M, 9.7 mL, 29.09 mmol) in tetrahydrofuran dropwise over 20 min to a cooled solution of 1-(6-bromo-pyridin-2-yl)-ethanone (5 g, 24.25 mmol) in anhydrous tetrahydrofuran (48.5 mL) at 0 C. Upon completion of the reaction, add water (exothermic), dilute with ethyl acetate (50 mL) and separate the layers. Extract the aqueous layer once with ethyl acetate (50 mL). Dry the combined organic layers over sodium sulfate, filter and concentrate to give the title compound as a pale yellow liquid (5.69 g, 98%) that is used without further purification. 1H NMR (CDCl3) delta 1.55 (s, 6H), 4.07 (s, 1H), 6.59 (t, 1H), 7.37 (t, 2H), 7.55 (t, 1H).
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Reference:
Patent; Britton, Thomas Charles; Dehlinger, Veronique; Fivush, Adam Michael; Hollinshead, Sean Patrick; Vokits, Benjamin Paul; US2009/253750; (2009); A1;,
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