Propionic acid with Br2 /P yields a dibromo product. Its structure would be

Question

Propionic acid with Br2 /P yields a dibromo product. Its structure would be (A) CH2Br-CHBr-COOH (B)  (C) CH2 Br-CH2-COBr (D)

Tardigrade Admin · Accepted Answer

<img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/9f7e23a2ae852814c07238959e8ffd53-.png" /> Carbonylic acids reacts with Cl 2 or Br 2 in presence of red P to give exclusively α-chloro or α-bromo acids. This reaction is called Hell-Volhard-Zelinsky (HVZ) reduction. This reaction is example of α-H-substitution.

Q. Propionic acid with $B r_{2} / P$ yields a dibromo product. Its structure would be

$C H_{2} B r - C H B r - COO H$

$C H_{2} B r - C H_{2} - COB r$

Carbonylic acids reacts with $C l_{2}$ or $B r_{2}$ in presence of red $P$ to give exclusively $α$ -chloro or $α$ -bromo acids.
This reaction is called Hell-Volhard-Zelinsky (HVZ) reduction. This reaction is example of $α$ -H-substitution.

Q. Propionic acid with Br2​/P yields a dibromo product. Its structure would be

CH2​Br−CHBr−COOH

CH2​Br−CH2​−COBr

Carbonylic acids reacts with Cl2​ or Br2​ in presence of red P to give exclusively α-chloro or α-bromo acids. This reaction is called Hell-Volhard-Zelinsky (HVZ) reduction. This reaction is example of α-H-substitution.

Q. Propionic acid with $B r_{2} / P$ yields a dibromo product. Its structure would be

$C H_{2} B r - C H B r - COO H$

$C H_{2} B r - C H_{2} - COB r$

Carbonylic acids reacts with $C l_{2}$ or $B r_{2}$ in presence of red $P$ to give exclusively $α$ -chloro or $α$ -bromo acids.
This reaction is called Hell-Volhard-Zelinsky (HVZ) reduction. This reaction is example of $α$ -H-substitution.