2. Solved Papers
  3. RAJASTHAN ­ PET

RAJASTHAN ­ PET Rajasthan PET Solved Paper-2005

  • question_answer
    \[C{{H}_{3}}COO{{C}_{2}}{{H}_{5}}+C{{H}_{3}}COO{{C}_{2}}{{H}_{5}}\xrightarrow[{}]{{}}\]  \[C{{H}_{3}}COC{{H}_{2}}COO{{C}_{2}}{{H}_{5}}+{{C}_{2}}{{H}_{5}}OH\] This reaction is called

    A)  Esterification

    B)  Claisen condensation

    C)  Williamson's synthesis

    D)  Trans-esterification

    Correct Answer: B

    Solution :

     \[\underset{ethyl\text{ }acetate}{\mathop{C{{H}_{3}}COO{{C}_{2}}{{H}_{5}}}}\,+C{{H}_{3}}-\underset{\begin{smallmatrix}  || \\  O \end{smallmatrix}}{\mathop{C}}\,-O{{C}_{2}}{{H}_{5}}\] \[\xrightarrow[or\,Na+{{C}_{2}}{{H}_{5}}OH]{NaN{{H}_{2}}/liquid\text{ }N{{H}_{3}}}\underset{ethyl\text{ }acetoacetate}{\mathop{C{{H}_{3}}-\underset{\begin{smallmatrix}  || \\  O \end{smallmatrix}}{\mathop{C}}\,-C{{H}_{2}}-\underset{\begin{smallmatrix}  || \\  O \end{smallmatrix}}{\mathop{C}}\,-O{{C}_{2}}{{H}_{5}}}}\,\] \[+{{H}_{2}}O\] This reaction is called Claisen condensation.


You need to login to perform this action.
You will be redirected in 3 sec spinner