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(A) The reaction of cyclopentene with $N$-bromosuccinimide $(NBS)$ in the presence of heat is an example of allylic bromination. $NBS$ provides a low

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$3-$bromocyclopent$-1-$ene

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(A) The reaction of cyclopentene with $N$-bromosuccinimide $(NBS)$ in the presence of heat is an example of allylic bromination. $NBS$ provides a low concentration of $Br_2$,which undergoes free radical substitution at the allylic position. The allylic position in cyclopentene is the carbon atom adjacent to the double bond. Therefore,the major product formed is $3$-bromocyclopent-$1$-ene.

What is the major product of the following reaction?

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