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JEE Main & Advanced Chemistry Aldehydes, Ketones Question Bank Critical Thinking Aldehydes,

  • question_answer
    Among the given compounds, the most susceptible to nucleophilic attack at the carbonyl group is [IIT 1997]

    A)                 MeCOCl               

    B)                 MeCHO

    C)                 MeCOOMe        

    D)                 MeCOOCOMe

    Correct Answer: A

    Solution :

               Amongst aldehyde & the acid derivatives, acid chloride are the most susceptible to nucleophilic attack due to strong ?I effect & weak +R effect of the Cl-atom as a result of which carbonyl carbon has the highest electron deficiency. The actual order is                                 MeCOCl >MeCOOCOMe >MeCOOMe >MeCHO.


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