Intermediates formed during reaction of RCONH _2 with Br _2 and KOH are : -

NEET 2001 Chemistry question

Intermediates formed during reaction of with and KOH are : -

(1) and Correct
(2) and
(3) and
(4)

Answer: (1)

Solution

This is the Hofmann bromamide degradation: . Mechanism: (i) the amide is N-brominated to the N-bromoamide ; (ii) base removes the N-H proton to give the bromoamide anion

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Question ID VK-088788