Answer
(trans)-4-ethyl-5-methyloct-2-ene.
Work Step by Step
1. Find the parent chain and number the carbons:
The parent chain will be everything but the ethyl and the methyl groups.
The numbering will start from the left.
2. Functional group:
- No group: "e"
3. Insaturations and number of carbons on the parent chain:
- One double bond on the carbons 2 and 3: "2-en"
- 8 carbons : "oct"
4. Substitutents:
- 1 ethyl on carbon 4: "4-ethyl"
- 1 methyl on carbon 5: "5-methyl"
5. Stereoisomerism:
The double bond has 2 hydrogens in the trans shape. : (trans)
6. Put them all together:
(trans)-4-ethyl-5-methyloct-2-ene.
