What is the IUPAC name of the compound shown | vedclass

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(A) The given structure is $CH_3-CH=CH-CH_2-Br$.According to $IUPAC$ nomenclature rules,the principal functional group or the multiple bond should get

Vedclass · Accepted Answer

$1-$Bromobut$-2-$ene

Vedclass · Answer

(A) The given structure is $CH_3-CH=CH-CH_2-Br$.According to $IUPAC$ nomenclature rules,the principal functional group or the multiple bond should get the lowest possible number.Here,the double bond is present,so we number the chain starting from the end that gives the double bond the lowest locant.Numbering from the right side: $CH_3(4)-CH(3)=CH(2)-CH_2(1)-Br$.The double bond starts at position $2$ and the bromine atom is at position $1$.Therefore,the $IUPAC$ name is $1-$bromobut$-2-$ene.

What is the $IUPAC$ name of the compound shown below?

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