Carboxylic Acid and Acid DerivativesHard
Question
Reaction of 
with a mixture of Br2 and KOH gives R - NH2 as the main product. The intermediates. involved in this reaction are :
with a mixture of Br2 and KOH gives R - NH2 as the main product. The intermediates. involved in this reaction are : Options
A.
B.R - NHBr
C.R - N = C = O
D.
Solution
It is example of Hoffmann bromamide reaction.
RCONH2 + Br2 + 4KOH(aq.) → RNH2 + 2KBr + 2H2O + K2CO3
RCONH2 + Br2 → RCONHBr + HBr
RCONHBr + OH- →
R - N = C = O + 2KOH → K2CO3
RCONH2 + Br2 + 4KOH(aq.) → RNH2 + 2KBr + 2H2O + K2CO3
RCONH2 + Br2 → RCONHBr + HBr
RCONHBr + OH- →
R - N = C = O + 2KOH → K2CO3
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