Punjab Medical Punjab - MET Solved Paper-2007

  • question_answer
    \[C{{H}_{3}}C{{H}_{2}}Cl\xrightarrow{NaCN}X\xrightarrow{Ni/{{H}_{2}}}Y\]\[Z\xleftarrow{Aceticanhydride}\]in above reaction sequence, \[Z\]is

    A) \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}NHCOC{{H}_{3}}\]

    B) \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}C{{H}_{2}}\]

    C) \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}CONHC{{H}_{3}}\]

    D) \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}CONHCOC{{H}_{3}}\]

    Correct Answer: A

    Solution :

    \[C{{H}_{3}}C{{H}_{2}}Cl\xrightarrow{NaCN}C{{H}_{3}}-\underset{X}{\mathop{C{{H}_{2}}}}\,-CN\]\[\xrightarrow{Ni/{{H}_{2}}}C{{H}_{3}}-C{{H}_{2}}C{{H}_{2}}N{{H}_{2}}\xrightarrow[anhydride]{Acetic}\] \[C{{H}_{3}}-C{{H}_{2}}-\underset{Z}{\mathop{C{{H}_{2}}}}\,-NHCOC{{H}_{3}}\]


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