Question

In HVZ reaction substitution takes place at:

• A. carbon atom of $-COOH$ group
• B. $\alpha$-carbon atom
• C. both of them
• D. all of these

Answer 1

The correct option is B $\alpha$-carbon atom

Hell- Volhard-Zelinsky Reaction is shown above.

Here, $Br$ is substituted at $\alpha -carbon$