Answer:
3-propyl-hepetene.
Step-by-step explanation:
Hello there!
In this case, according to the given structure wherein an alkene is shown, due to the double bond; as we need to figure out the name we should first number the chain by starting on the bottom carbon having the double bond and ending on the left side as it is the longest chain (parent chain) having seven carbon atoms.
Moreover, we can find a propyl substituent on the third carbon and therefore, the resulting name is:
3-propyl-hepetene.
In agreement to the IUPAC rules.
Best regards!