Propionic acid with Br_2/P yields a dibromo p | vedclass

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Question

(C) The reaction of propionic acid $(CH_3-CH_2-COOH)$ with $Br_2$ in the presence of red phosphorus is known as the $Hell-Volhard-Zelinsky$ $(HVZ)$ re

Vedclass · Accepted Answer

$CH_3-C(Br)_2-COOH$

Vedclass · Answer

(C) The reaction of propionic acid $(CH_3-CH_2-COOH)$ with $Br_2$ in the presence of red phosphorus is known as the $Hell-Volhard-Zelinsky$ $(HVZ)$ reaction.This reaction specifically substitutes the $\alpha$-hydrogen atoms with bromine atoms.Propionic acid has two $\alpha$-hydrogens on the carbon atom adjacent to the $-COOH$ group.Since a dibromo product is formed,both $\alpha$-hydrogens are replaced by bromine,resulting in the structure $CH_3-C(Br)_2-COOH$.

Propionic acid with $Br_2/P$ yields a dibromo product. Its structure would be:

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