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)  (B) CH2(Br) - CH2 - COBr (C)  (D) CH2(Br) - CH(Br) - COOH

Tardigrade Admin · Accepted Answer

This is Hell-Volhard Zelinsky reaction In this reaction, acid containing α-H react with X2 /red P giving product in which the α-hydrogens are substituted by X. <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/c0f81d03e05ececd0ada876257d14555-.png" />

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

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

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

This is Hell-Volhard Zelinsky reaction In this reaction, acid containing $α - H$ react with $X_{2}$ /red $P$ giving product in which the $α$ -hydrogens are substituted by $X$ .

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

CH2​(Br)−CH2​−COBr

CH2​(Br)−CH(Br)−COOH

This is Hell-Volhard Zelinsky reaction In this reaction, acid containing α−H react with X2​ /red P giving product in which the α-hydrogens are substituted by X.

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

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

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

This is Hell-Volhard Zelinsky reaction In this reaction, acid containing $α - H$ react with $X_{2}$ /red $P$ giving product in which the $α$ -hydrogens are substituted by $X$ .