Question

The best reagent for converting, 2-phenylpropanamide into 1- phenylethanamine is ______.

विकल्प

• \[\ce{excess H2/Pt}\]

• \[\ce{NaOH/Br2}\]

• \[\ce{NaBH4 /methanol}\]

• \[\ce{LiAlH4 /ether}\]

Answer 1

The best reagent for converting, 2-phenylpropanamide into 1- phenylethanamine is \[\ce{NaOH/Br2}\].

Explanation:

\[\begin{array}{cc}
\ce{CH3 - CH - CONH2 ->[Br/NaOH][(Hofmann's bromamide reaction)] CH3 - CH - NH2}\\
\phantom{}|\phantom{..............................................}|\phantom{..}\\
\phantom{....}\ce{\underset{2-Phenylpropanamide}{C6H5}\phantom{................................}\underset{1-Phenyletanamine}{C6H5}\phantom{...}}
\end{array}\]