RAJASTHAN PMT Rajasthan - PMT Solved Paper-1995

  • question_answer
    \[{{C}_{2}}{{H}_{5}}CHO\] reacts with a base to give 3-hydroxybutanol. This reaction is called:

    A)  Aldol condensation

    B)  Claisens condensation

    C)  Polymerization

    D)  Riemer-Tiemann reaction

    Correct Answer: A

    Solution :

    \[C{{H}_{3}}-\underset{O}{\mathop{\underset{||}{\mathop{C}}\,}}\,-H+C{{H}_{3}}-\underset{O}{\mathop{\underset{||}{\mathop{C}}\,}}\,-H\xrightarrow{Base}\] \[\underset{3\,\text{hydroxy butanol}}{\mathop{C{{H}_{3}}-\underset{OH}{\mathop{\underset{|}{\mathop{C}}\,}}\,-C{{H}_{2}}-\underset{O}{\mathop{\underset{||}{\mathop{C}}\,}}\,-H}}\,\]


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