Answer
(3S)-3-methylpent-1-ene
Work Step by Step
1. Name the compound by its substituents, parent, unsaturations and functional group:
** First identify the parental chain, and where you should start counting the carbons.
- Substituent: 3-methyl
- Parent: pent
- Unsaturations: 1-en
- Functional group: e
2. Identify the double bonds and stereocenters.
- One double bond (carbon 1).
- One stereocenter (carbon 3).
3. Identify their configurations:
The double bond has on the left:
- 1 Hydrogen (Top)
- 4 carbons group (Bottom)
The bottom groups gets priority.
On the right:
- 1 Hydrogen (Top)
- 1 Hydrogen (Bottom)
Theres no priority.
- Since there are 3 equal groups, we don't need to name the double bond stereoisomerism.
- The stereocenter on carbon 3 is "S". (3S)
4. Put all the parts together:
(3S)-3-methylpent-1-ene
