Identify the major product X in the following | vedclass

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(A) $N$-Bromosuccinimide $(N.B.S.)$ is a reagent used for allylic bromination in the presence of light $(h
u)$.In the given substrate,$1,5,5-	ext{tr

Vedclass · Accepted Answer

$3-$bromo$-1,5,5-$trimethylcyclohex$-1-$ene

Vedclass · Answer

(A) $N$-Bromosuccinimide $(N.B.S.)$ is a reagent used for allylic bromination in the presence of light $(h
u)$.In the given substrate,$1,5,5-	ext{trimethylcyclohex-1-ene}$,there are two types of allylic positions:$1$. The allylic position at $C-3$ (adjacent to the double bond,containing two hydrogen atoms).$2$. The allylic position at the methyl group attached to $C-1$.Allylic bromination occurs via a free radical mechanism,forming the most stable allylic radical intermediate.The radical formed at the $C-3$ position is more stable due to the hyperconjugation and inductive effects of the alkyl groups compared to the radical formed on the methyl group.Therefore,the bromine atom replaces one of the hydrogen atoms at the $C-3$ position.The major product is $3-	ext{bromo}-1,5,5-	ext{trimethylcyclohex-1-ene}$.

Identify the major product $X$ in the following reaction:
$1,5,5-\text{trimethylcyclohex-1-ene} \xrightarrow{N.B.S., h\nu} X$

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Identify the major product $X$ in the following reaction:$1,5,5-\text{trimethylcyclohex-1-ene} \xrightarrow{N.B.S., h\nu} X$