JEE CHEMISTRY MCQ: AMINES

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Application +4 | -1

In the given reaction what will be the product

R - NH - \mathop C\limits^{\begin{array}{cccccccccccccccccccc} O \\ {||} \end{array}} - H\xrightarrow[{Pyridine}]{{POC{l_3}}}{\text{Product}}

View answer and explanation

Correct option: B

{R}-\stackrel{+}{{N}} \equiv {C}^{-}

Option B (

{R}-\stackrel{+}{{N}} \equiv {C}^{-}

) is correct because N-alkyl formamides, when dehydrated with

{POCl}_3

in the presence of pyridine, give isocyanides.

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\mathrm{Z}

' in the sequence

{{\text{C}}_6}{{\text{H}}_5}{\text{N}}{{\text{H}}_2}\xrightarrow{{{\text{NaN}}{{\text{O}}_2} + {\text{HCl}}}}{\text{X}}\xrightarrow{{{\text{CuCN}}}}{\text{Y}}\xrightarrow{{{{\text{H}}^ + }/{{\text{H}}_2}{\text{O}}}}{\text{Z}}

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