Addition of bromine to 1, 3-butadiene gives | vedclass

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(C) The electrophilic addition of bromine $(Br_2)$ to $1, 3-$butadiene $(CH_2=CH-CH=CH_2)$ is a classic example of conjugated diene reactivity.The rea

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Both $1, 2-$ and $1, 4-$addition product

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(C) The electrophilic addition of bromine $(Br_2)$ to $1, 3-$butadiene $(CH_2=CH-CH=CH_2)$ is a classic example of conjugated diene reactivity.The reaction proceeds through a common allylic carbocation intermediate.Depending on the reaction conditions (temperature),two products are formed:$1$. $1, 2-$addition product: $3, 4-$dibromobut-$1-$ene.$2$. $1, 4-$addition product: $1, 4-$dibromobut-$2-$ene.At low temperatures,the $1, 2-$addition product is the kinetic product (formed faster),while at higher temperatures,the $1, 4-$addition product is the thermodynamic product (more stable due to the more substituted double bond).

Addition of bromine to $1, 3-$butadiene gives

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