Learning Objectives: You should be able to interconvert Fischer projections, tetrahedral configurations, and perspective drawings and to determine R and S configuration on all three types of representations. It is also important to recognize enantiomers, diastereomers, and meso compounds of chains and ring systems.

Chiral molecules

Stereogenic centers

Assign priority using Cahn-Ingold Prelog rules

9.6, 9.40

Assign R and S configurations

Identify and draw stereoisomers

Identify meso isomers and symmetry planes

9.11, 9.12, 9.36

Fischer projections

Draw chiral molecules

Apply stereochemistry to the outcome of a reaction

Terminology