What is the IUPAC name of the compound HC equ | vedclass

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(C) $1$. Identify the principal functional group: The aldehyde group $(-CHO)$ has the highest priority,so the suffix is $-al$ and the carbon of the $-

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$3-vinyl-2-hepten-6-ynal$

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(C) $1$. Identify the principal functional group: The aldehyde group $(-CHO)$ has the highest priority,so the suffix is $-al$ and the carbon of the $-CHO$ group is $C-1$.$2$. Select the longest carbon chain containing the principal functional group and the maximum number of multiple bonds: The longest chain containing the $-CHO$ group,the double bond,and the triple bond is a $7$-carbon chain.$3$. Numbering the chain: Start from the aldehyde carbon $(C-1)$. The double bond is at $C-2$ and the triple bond is at $C-6$.$4$. Identify substituents: At $C-3$,there is a vinyl group $(-CH=CH_2)$.$5$. Combine the parts: The parent chain is $hept-2-en-6-yn-1-al$. With the substituent,the name is $3-vinylhept-2-en-6-ynal$.

What is the $IUPAC$ name of the compound $HC \equiv C-CH_2-CH_2-C(CH=CH_2)=CH-CHO$?

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