Answer
(trans)-oct-2-en-4-ol.
Work Step by Step
1. Find the parent chain and where we should start counting the carbons:
- Since there are no bifurcations of carbons, the parent chain will have all the carbons in the molecule and the functional group (-OH).
- We should start counting from the right, because the alcohol group (-OH) is closer to this side.
2. Functional group:
- 1 Alcohol on the carbon number 4: "4-ol"
3. Insaturations and number of carbons on the parent chain:
- 1 double bond on the carbons 2 and 3: "2-en"
- 8 carbons in the parent chain: "oct"
4. Substitutents:
- No substitutents.
5. Stereoisomerism:
- 1 double bond, with 2 opposite hydrogens: "(trans)"
6. Put them all together:
(trans)-oct-2-en-4-ol
