Sandmeyer Reaction · Diazonium → Aryl Halide
unseel.com · Ar-N₂⁺ + CuX → Ar-X + N₂ · Sandmeyer 1884
Cu state Cu(I)
N₂ released 0
Stage reactants assembled
Aryl ring (Ar)
Diazonium N₂⁺ / N₂
Copper (Cu)
Halogen (Cl/Br)
Radical / new bond
Unseel.com · Sandmeyer Reaction