Amines — Chemistry STD 12 Science — Question

Hoffmann bromamide reaction:
a) Primary amine can be prepared by reaction of amide with bromine and aqueous or alcoholic sodium hydroxide.

eg. Ethanamine is prepared by reaction of propanamide with bromine and aqueous or alcoholic sodium hydroxide.

b) This reaction is known as Hoffmann bromamide degradation. It involves molecular rearrangement. An alkyl or aryl group migrates from the carbonyl carbon to the adjacent nitrogen atom.
c) This reaction is useful for decreasing the length of carbon chain by one carbon atom.