Multiple Choice QuestionsAcetamide is treated with the following reagents separately. Which one of these would yield methylamine?
NaOH - Br2
Sodalime
Hot conc. H2SO4
Hot conc. H2SO4
A.
NaOH - Br2
The reagent which can convert -CONH2 group into - NH2 group is used for this reaction.
Among the given reagents only NaOH/ Br2 converts -CONH2 group to -NH2 group, thus it is used for converting acetamide to methylamine. This reaction is called Hoffman bromide reaction.
CH3CONH2 + NaOH +Br2 --> CH3NH2 +NaBr + Na2CO3 + H2O
Which of the following statements about primary amines is false?
Alkyl amine are stronger bases than aryl amines
Alkyl amines reacts with nitrous acid to produce alcohols
Aryl amines react with nitrous acid to produce phenols
Alkyl amines are stronger base than ammonia
Among the given compounds, the most susceptible to nucleophilic attack at the carbonyl group is
CH3COOCH3
CH3CONH2
CH3COOCOCH3
CH3COOCOCH3
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