Preparation method of o-fluorophenylhydrazine hydrochloride_Kain Industrial Additive

Overview[1] As an important organic synthesis intermediate, o-fluorophenylhydrazine hydrochloride is widely used in dye and pharmaceutical manufacturing industries and has broad market prospects. Preparation method[1] A preparation method of o-fluorophenylhydrazine hydrochloride, the steps are as follows: ⑴ Diazotization: Mix 2-fluoroaniline and 37% concentrated hydrochloric acid and cool to 0~5°C. Add 35% sodium nitrite aqueous solution…