CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Propanamide on treatment with bromine in an aqueous solution of sodium hydroxide gives:

A
Propanamine
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
Butanamine
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
Ethanamine
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
Methanamine
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C Ethanamine
When an amide is treated with bromine in an aqueous or ethanolic solution of sodium hydroxide, degradation of amide takes place leading to the formation of primary amine. This reaction involving degradation of amide and is popularly known as Hoffmann bromamide degradation reaction. The primary amine thus formed contains one carbon less than the number of carbon atoms in that amide.

The general reaction is as follows:
RCONH2AmideBr2+4NaOH−−−−−−−RNH21Amine+Na2CO3+2NaBr+2H2O

The reaction is as follows:

Hence c is the correct option.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Alkynes - Preparation
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon