1. Review

2. Aromatics
Which radical is more stable? Draw structures to show stabilization.

3. Map out a synthetic route from benzene and/or ethylene.

4. Stereochemistry
Draw the R and S enantiomers of carvone.

5. Label each chiral center as R/S. Which are enantiomer? Diastereomers?

6. Which of these compounds are chiral?
2,2,3,3-tetrabromobutane
2,2-dibromo-3,3-dichlorobutane
2,3-dibromo-2,3-dichlorobutane
Draw all stereoisomers of the chiral compound and identify the relationships (enantiomers, diastereomers, meso)

7. Label each chiral center as R/S. Which are enantiomer? Diastereomers?

8. Assign R/S to each chiral center.
Draw sawhorse projections for I and II. Draw skeletal structures for III and IV showing stereochemistry. Identify the stereochemical relationships.

9. Map out a synthetic route from ethylene
What is the configuration of each chiral center?
Is it the only product formed?