CH3−CH3|CH−CH2−CH=CH−CH3
5-Methyl-2-hexene
→Parent chain??
6 carbons⇒Word root = Hex
Double bond⇒Primary suffix = ene
Give numbering so that double bond gets the least number.
C6H3−CH3|CH5 − C4H2−C3H=C2H−C1H3
→ a methyl (−CH3) group on C5
Therefore,
5-methyl-2-hexene