Question

The IUPAC name for the following compound is:

Options

• 3-methyl-4-(3-methylprop-1-enyl)-1-heptyne

• 3,5-dimethyl-4-propylhept-6-en-1-yne

• 3-methyl-4-(1-methylprop-2-ynyl)-1-heptene

• 3,5-dimethyl-4-propylhept-1-en-6-yne

Answer 1

3,5-dimethyl-4-propylhept-1-en-6-yne

Explanation:

\[\begin{array}{cc}
\phantom{.................}\ce{CH3}\\
\phantom{..............}|\\
\phantom{}\ce{H2\overset{1}{C} = \overset{2}{C}H - \overset{3}{C}H - \overset{4}{C}H - \overset{5}{C}H - \overset{6}{C} ≡ \overset{7}{C}H}\\
\phantom{.}|\phantom{......}|\phantom{......}\\
\phantom{}\ce{CH3}\phantom{...}\ce{CH2}\phantom{...}\\
\phantom{..}|\\
\phantom{....}\ce{CH2}\\
\phantom{..}|\\
\phantom{......}\ce{\underset{3,5-dimethyl-4-propylhept-1-en-6-yne}{CH3}}
\end{array}\]