L11 - Stereochemistry 4 Flashcards
1
Q
what is racemisation?
A
process of making a racemic mixture
2
Q
How does racemisation take place?
A
the S and R enantiomers can switch with keto/enol tautomerisation
3
Q
what is chiral recognition?
A
one fits, the other does not
= diastereomeric complexes
4
Q
What are the diastereoisomers with 1 stereogenic centre?
A
R
S
5
Q
What are the diastereoisomers with 2 stereogenic centres?
A
RR, SS // SR, RS (enantiomers)
RR, RS, SS, SR (diastereoisomers)
6
Q
What are epimers?
A
when diastereosiomers differ at only one stereogenic centre
7
Q
A
