Molecules with Potentially Two Chiral Centers
a
b
d
c
What is the absolute configuration at
a
?
R
S
Neither
What is the absolute configuration at
b
?
R
S
Neither
What is the absolute configuration at
c
?
R
S
Neither
What is the absolute configuration at
d
?
R
S
Neither
What is the relationship between these structures?
Identical
Enantiomers
Diastereomers
If they are identical, why?
No Chiral C
Same Enant.
Both meso
Are they superimposable?
Yes
No
Which, if either, represents a meso structure?
Left
Right
Both
Neither
