Point out the incorrect synthesis.

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Question

(A) In option $A$,the reaction of cyclohexylmagnesium bromide with acetone $(CH_3COCH_3)$ followed by acid hydrolysis $(H^+)$ yields $2-$cyclohexylpro

Vedclass · Accepted Answer

Cyclohexylmagnesium bromide + Acetone $\xrightarrow[(2) H^+]{(1) CH_3COCH_3}$ $1-$cyclohexylpropan$-2-$ol

Vedclass · Answer

(A) In option $A$,the reaction of cyclohexylmagnesium bromide with acetone $(CH_3COCH_3)$ followed by acid hydrolysis $(H^+)$ yields $2-$cyclohexylpropan$-2-$ol,not $1-$cyclohexylpropan$-2-$ol. The Grignard reagent attacks the carbonyl carbon of acetone to form a tertiary alcohol. Therefore,the synthesis shown in option $A$ is incorrect.

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