Fluorination of an aromatic ring is easily accomplished by treating a diazonium salt with \(\mathrm{HBF_4}\). Which of the following conditions is correct about this reaction ?
Show Hint
- Only heat
- \(\mathrm{NaNO_2/Cu}\)
- \(\mathrm{Cu_2O/H_2O}\)
- NaF/Cu
The Correct Option is A
Solution and Explanation
On simple heating it decomposes: \(\mathrm{ArN_2^+BF_4^- \xrightarrow{\Delta} ArF + N_2 + BF_3}\).
No copper or other reagent is required (Cu is used in Sandmeyer/Gattermann reactions, not here).
Answer: (1) Only heat
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