What is the product of the reaction of 1,3-bu | vedclass

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Question

(A) The reaction of $1,3-$butadiene with $Br_2$ is an electrophilic addition reaction. At low temperatures,$1,2-$addition is favored,but at higher tem

Vedclass · Accepted Answer

$1,4-$dibromobut$-2-$ene

Vedclass · Answer

(A) The reaction of $1,3-$butadiene with $Br_2$ is an electrophilic addition reaction. At low temperatures,$1,2-$addition is favored,but at higher temperatures or under thermodynamic control,$1,4-$addition is the major product. The reaction is: $CH_2=CH-CH=CH_2 + Br_2 \rightarrow Br-CH_2-CH=CH-CH_2-Br$. Thus,the product is $1,4-$dibromobut$-2-$ene.

What is the product of the reaction of $1,3-$butadiene with $Br_2$?

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