Choose the amide which on reduction with LiAlH_4 yields a secondary amine. [Kerala CEE 2009]

JEE Main Chemistry question

Choose the amide which on reduction with yields a secondary amine. [Kerala CEE 2009]

(A)Ethanamide,
(B)-methylethanamide, Correct
(C)-dimethylethanamide,
(D)-phenylmethanamide (formanilide), Correct

Answer: (B),(D)

Solution

reduces an amide's carbonyl carbon to a group while leaving the nitrogen's substituents unchanged. Ethanamide (, unsubstituted on N) gives the primary amine ethylamine. -dimethylethanamide (two substituents on N) gives the tertiary amine .

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Question ID VK-150288