An alkanamide, which on Hofmann's (bromamide) reaction gives C_6H_5-CH(CH_3)-NH_2 (1-phenylethylamine), is

JEE Main Chemistry question

An alkanamide, which on Hofmann's (bromamide) reaction gives (1-phenylethylamine), is

(A)2-PhenylpropanamideCorrect
(B)3-Phenylpropanamide
(C)2-Phenylethanamide
(D)-Phenylethanamide

Answer: (A)

Solution

Hofmann bromamide degradation removes exactly the carbonyl carbon of the amide (as , via the nitrene/isocyanate intermediate), with the rest of the molecule (including the migrating group) carried over intact and with

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Question ID VK-150459