Nitrogen Containing CompoundHard

Question

Acetamide is treated separately with the following four reagents. Which one of these would give methylamine ?

Options

A.PCl5
B.Soda lime
C.NaOH + Br2
D.Hot conc. H2SO4

Solution

Amides give amines, with one carbon less than amide when treated with Br2/alkali. (Hoffmann bromamide reaction)
CH3CONH2 + Br2 + 4NaOH → CH3NH2 + Na2CO3 + 2NaBr + 2H2O

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