Scheme 2. Synthesis of 2-fluoro-4-aminoacetophenone.
aReagents and reaction conditions: (a) Zn powder, ammonium chloride, methanol and H2O, 85 °C, 30 min.
aReagents and reaction conditions: (a) Zn powder, ammonium chloride, methanol and H2O, 85 °C, 30 min.