MCQ
Amongst the given set of reactants, the most appropriate for preparing $2^\circ $ amine is $......$
  • A
    $2^{\circ} \mathrm{R}-\mathrm{Br}+\mathrm{NH}_3$.
  • B
    $2^{\circ} \mathrm{R}-\mathrm{Br}+\mathrm{NaCN}$ followed by $\mathrm{H}_2 / \mathrm{Pt}$.
  • C
    $1^{\circ} \mathrm{R}-\mathrm{NH}_2+\mathrm{RCHO}$ followed by $\mathrm{H}_2 / \mathrm{Pt}$.
  • $1^{\circ} \mathrm{R}-\mathrm{Br}(2 \mathrm{~mol})+$ potassium phthalimide followed by $\mathrm{H}_3 \mathrm{O}^{+} /$heat.

Answer

Correct option: D.
$1^{\circ} \mathrm{R}-\mathrm{Br}(2 \mathrm{~mol})+$ potassium phthalimide followed by $\mathrm{H}_3 \mathrm{O}^{+} /$heat.
$\text{R}-\text{NH}_2+\text{O}=\text{HCR}\xrightarrow[\text{animation}]{\text{Reductive}}\text{R}-\text{N}=\text{CHR}\xrightarrow[\text{Reductiion}]{\text{H}_2/\text{pt}}\text{RNH}-\text{CH}_2\text{R}$

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