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Identify the final major product C in the following reaction sequence: Benzamide Br ₂, NaOH A NaNO ₂, HCl, 0^ C B Cu ₂ Br ₂, HBr C

Options

  1. AChlorobenzene
  2. BBenzyl bromide
  3. C3-Bromobenzamide
  4. DBromobenzene

Correct answer

D. Bromobenzene

Step-by-step solution

The first step is the Hoffmann bromamide degradation reaction. Benzamide reacts with Br ₂ and NaOH to form aniline ( A ). In the second step, aniline undergoes diazotization with NaNO ₂ and HCl at 0^ C to yield benzenediazonium chloride ( B ). In the final step, benzenediazonium chloride is treated with Cu ₂ Br ₂ and HBr (Sandmeyer reaction), which replaces the diazonium group with a bromine atom. Therefore, the final product C is bromobenzene. Answer: Bromobenzene

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