Question

In a set of reactions propionic acid yielded a compound $D$.
$CH_3CH_2COOH\xrightarrow{SOCL_2} B\xrightarrow{NH_3}C\xrightarrow [Br_2]{KOH} D$
The structure of $D$ would be

• A. $CH_3CH_2CH_2NH_2$
• B. $CH_3CH_2CONH_2$
• C. $CH_3CH_2NHNH_3$
• D. $CH_3CH_2NH_2$

Answer 1

Answer: (D)

For the reaction,

Hence, it is also called Hofmann bromamide degradation reaction.
Hence, compound ' $D$ ' is $CH _{3}- CH _{2}- NH _{2}$.
Hofmann bromamide reaction degrade the one $C$ in amine product from amide.