JIPMER Jipmer Medical Solved Paper-2002

  • question_answer
    The chloroform reacts with \[NaOH\] and methyl amine to give:

    A)  \[C{{H}_{3}}COONa\]   

    B)  sodium oxalate

    C)         \[C{{H}_{3}}NC\]            

    D)         \[C{{H}_{3}}CN\]

    Correct Answer: C

    Solution :

    Chloroform, when treated with a primary amine in presence of \[NaOH\], gives a bad-smelling compound isocyanide. The reaction is known as carbyl-amine reaction. \[\underset{\begin{smallmatrix}  \text{Primary} \\  \,\,\,\text{amine} \end{smallmatrix}}{\mathop{R-N{{H}_{2}}}}\,+CHC{{l}_{3}}+3KOH\xrightarrow{{}}\] \[\underset{\begin{smallmatrix}  \,\,\,\,\,\,\,Alkyl \\  isocyanide \end{smallmatrix}}{\mathop{R-NC}}\,\,\,+3KCl+3{{H}_{2}}O\]


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