RAJASTHAN PMT Rajasthan - PMT Solved Paper-2004

  • question_answer
    Which on reduction does not give primary amines?

    A)  \[{{C}_{2}}{{H}_{3}}NC\]

    B)  \[C{{H}_{3}}CN\]

    C)  \[C{{H}_{3}}CON{{H}_{2}}\]

    D)  All of these

    Correct Answer: A

    Solution :

         Isocyanides (carbylamines) on reduction give \[{{2}^{o}}\] amines. \[R-NC\xrightarrow{{{H}_{2}}/Ni}R-\underset{{{2}^{o}}\,\text{amine}}{\mathop{NHC{{H}_{3}}}}\,\]


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