In the following given reaction,'A' is the ma | vedclass

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(C) The reaction involves the electrophilic addition of $HBr$ to $1$-cyclobutyl$-1-$methylethene. Step $1$: Protonation of the double bond by $H^+$ fr

Vedclass · Accepted Answer

$1-$bromo$-1,2-$dimethylcyclopentane

Vedclass · Answer

(C) The reaction involves the electrophilic addition of $HBr$ to $1$-cyclobutyl$-1-$methylethene. Step $1$: Protonation of the double bond by $H^+$ from $HBr$ forms a more stable tertiary carbocation. Step $2$: The cyclobutyl ring undergoes a ring expansion to form a more stable $5$-membered cyclopentyl ring carbocation. Step $3$: The $Br^-$ ion attacks the carbocation to form the final major product,which is $1$-bromo$-1,2-$dimethylcyclopentane.

In the following given reaction,'$A$' is the major product:

Similar Questions

Arrange the following compounds in the decreasing order of their reactivity towards electrophilic addition of $HBr$:
$(a)$ $CH_3-C(CH_3)=CH_2$
$(b)$ $CH_3O-C(CH_3)=CH_2$
$(c)$ $CH_3OCH_2-C(CH_3)=CH_2$

The principal organic product formed in the following reaction is
$CH_2=CH(CH_2)_8COOH + HBr \xrightarrow{\text{peroxide}}$

Which of the following reactions proceeds via a secondary free radical?

$CH_3-CHCl-CHCl-CH_3$ $\xrightarrow[dry \ ether]{Na} X$ $\xrightarrow[(1) \ BH_3, THF; (2) \ H_2O_2, OH^-_{(aq)}] Y$; $Y$ is:

$3-$Methylhex$-2-$ene on reaction with $HBr$ in the presence of peroxide forms an addition product $(A)$. The number of possible stereoisomers for '$A$' is $....$.

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