Preparation method of 2-fluorophenylhydrazine_Kain Industrial Additive

background and overview[1] 2-fluorophenylhydrazine is an important intermediate, especially a pharmaceutical intermediate. the existing technology uses 2-fluorophenylhydrazine as raw material, and prepares 2-fluorophenylhydrazine through diazotization reaction, sodium sulfite reduction and hydrolysis. -the synthesis method of fluphenylhydrazine requires a long reaction time, generally requires a yield of only 63-72%, and has high production costs. structure preparation…