Question

The IUPAC name of the following structure $C{H}_{3}CH=C\left(C{H}_3\right)C\equiv CC{H}_3$ is:

• A. 3-methylhex-2-en-4-yne
• B. 3-methylhex-2-yn-4-ene
• C. 4-methylhex-4-yn-4-ene
• D. all are correct

Answer 1

The correct option is A 3-methylhex-2-en-4-yne

$Given$ : The structural formula of the compound is given

$Solution$ :

1 2 3 4 5 6

since double and triple bond are on the same distance from both side so we will start numbering from double bond first as "double bond has has higher priority than triple bond" .

• a methyl group is attached with 3rd carbon so the answer will be

3-methylhex-2-en-4-yne

$hence,$ option A is correct.