What is the product (A) in the following reac | vedclass

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(A) The starting material is $3-$chlorocyclohex$-2-$en$-1-$one. This is an $\alpha,\beta$-unsaturated carbonyl compound with a leaving group $(-Cl)$ a

Vedclass · Accepted Answer

$3-$tert-butoxycyclohex$-2-$en$-1-$one

Vedclass · Answer

(A) The starting material is $3-$chlorocyclohex$-2-$en$-1-$one. This is an $\alpha,\beta$-unsaturated carbonyl compound with a leaving group $(-Cl)$ at the $\beta$-position. The reagent $t-butO^-$ is a strong nucleophile. Nucleophilic substitution occurs at the $\beta$-carbon via an addition-elimination mechanism (conjugate addition followed by elimination of the chloride ion). This results in the replacement of the $-Cl$ group with the $-Ot-Bu$ group,yielding $3-$tert-butoxycyclohex$-2-$en$-1-$one.

Column $I$	Column $II$
$A$. $CH_3-CHBr-CD_3$ on treatment with alc. $KOH$ gives $CH_2=CH-CD_3$ as a major product.	$P$. $E1$ reaction
$B$. $Ph-CHBr-CH_3$ reacts faster than $Ph-CHBr-CD_3$.	$Q$. $E2$ reaction
$C$. $Ph-CH_2-CH_2Br$ on treatment with $C_2H_5OD / C_2H_5O^-$ gives $Ph-CD=CH_2$ as the major product.	$R$. $E1cb$ reaction
$D$. $PhCH_2CH_2Br$ and $PhCD_2CH_2Br$ react with same rate.	$S$. First order reaction

What is the product $(A)$ in the following reaction?

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