Which gives a Ketone with a Grignard reagent?

  • Option 1)

    Formaldehyde

  • Option 2)

    Ethyl alcohol

  • Option 3)

    methyl cyanide

  • Option 4)

    methyl iodide

 

Answers (1)
V Vakul

As we learnt in

Ketone formation from nitriles -

Nitrile with Grignard reagent in the presence of ether followed by hydrolysis yields ketone.

- wherein

C_{2}H_{5}CN + C_{6}H_{5}MgBr \rightarrow C_{2}H_{5}C(NMgBr) C_{6}H_{5} \rightarrow C_{2}H_{5}COC_{6}H_{5}

 

 RMgX+CH_{3}CN\rightarrow CH_{3}C(NMgX)R\rightarrow CH_{3}COR


Option 1)

Formaldehyde

Option is incorrect

Option 2)

Ethyl alcohol

Option is incorrect

Option 3)

methyl cyanide

Option is Correct

Option 4)

methyl iodide

Option is incorrect

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