Adding a certain compound to certain chemical reactions, such as: 63069-50-1, name is 4-Amino-3-fluorobenzonitrile, belongs to nitriles-buliding-blocks compound, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 63069-50-1, HPLC of Formula: C7H5FN2
3-bromo-5-fluoro-4-nitrobenzonitrile Step 1 : 4-amino-3-bromo-5-fluorobenzonitrile To a solution of 4-amino-3-fluorobenzonitrile (15.0 g, 1 10 mmol) in acetic acid (200 mL) was added a solution of bromine (5.68 mL, 1 10 mmol) in 15 mL of acetic acid. The reaction was stirred at rt overnight. The mixture was concentrated and repeatedly diluted with hexanes and concentrated to azeotropically remove the trace acetic acid. The crude product was suspended in saturated sodium thiosulfate solution and 2 N NaOH. The mixture was stirred for 10 min. The product was then extracted into EtOAc. The combined organics were dried over Na2S04, filtered, and concentrated to provide the crude title comound (19.8 g, 83 % crude yield) as a yellow solid. MS (m/z) 215.0, 217.0 (M+H+).
At the same time, in my other blogs, there are other synthetic methods of this type of compound, 4-Amino-3-fluorobenzonitrile, and friends who are interested can also refer to it.
Reference:
Patent; GLAXOSMITHKLINE LLC; BROOKS, Carl; CHEUNG, Mui; EIDAM, Hilary, Schenck; GOODMAN, Krista, B.; HAMMOND, Marlys; HILFIKER, Mark, A.; PATTERSON, Jaclyn, R.; STOY, Patrick; YE, Guosen; WO2012/174342; (2012); A1;,
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts