Which of the following compounds forms 1-brom | vedclass

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(A) The reaction of alkenes with $HBr$ follows Markovnikov's rule,where the electrophile $(H^+)$ adds to the carbon with more hydrogen atoms,and the n

Vedclass · Accepted Answer

$1-$methylcyclohexene

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(A) The reaction of alkenes with $HBr$ follows Markovnikov's rule,where the electrophile $(H^+)$ adds to the carbon with more hydrogen atoms,and the nucleophile $(Br^-)$ adds to the more substituted carbon to form the most stable carbocation intermediate.For $1-$methylcyclohexene,the double bond is between $C1$ and $C2$. Adding $H^+$ to $C2$ creates a stable tertiary carbocation at $C1$. Then,$Br^-$ attacks the $C1$ carbocation to form $1-$bromo$-1-$methylcyclohexane.Therefore,$1-$methylcyclohexene is the correct reactant.

Which of the following compounds forms $1-$bromo$-1-$methylcyclohexane when treated with $HBr$?

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