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. 403-54-3 name is 3-Fluorobenzonitrile, 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. 403-54-3
(a) 3-Cyano-4-nitrofluorobenzene m-Fluorobenzonitrile (96.8 g., 0.8 mol) is added in two and one-half hours to a mixture of concentrated sulfuric acid (600 ml.) and potassium nitrate (80.9 g., 0.8 mole) at 3-6 C., then allowed to warm to 25 C. The mixture is poured over cracked ice (3000 ml.), extracted with chloroform (5*250 ml.), dried and the solvent removed. The residue is extracted with pentane and dried to give 3-cyano-4-nitrofluorobenzene (115 g., 86.5%) m.p. 102-104 C.
At the same time, in my other blogs, there are other synthetic methods of this type of compound, 3-Fluorobenzonitrile, and friends who are interested can also refer to it.
Reference:
Patent; Rohm and Haas Company; US4330324; (1982); A;,
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts