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(A) The reaction involves a conjugate addition ($1,4$-addition) of an organocopper reagent (Gilman reagent,formed in situ from $MeMgBr$ and $CuI$) to

Vedclass · Accepted Answer

$3,3-$dimethyl$-2-$propylcyclohexanone

Vedclass · Answer

(A) The reaction involves a conjugate addition ($1,4$-addition) of an organocopper reagent (Gilman reagent,formed in situ from $MeMgBr$ and $CuI$) to the $\alpha,\beta$-unsaturated ketone. $1$. The $Me^-$ group attacks the $\beta$-carbon of the $3$-methylcyclohex$-2-$en$-1-$one,resulting in the formation of an enolate intermediate. $2$. This enolate is then alkylated by $n$-propyl iodide $(nPrI)$ at the $\alpha$-position. $3$. The final product is $2$-propyl-$3,3$-dimethylcyclohexanone.

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