Orgo Sterochemistry

[nixon13]

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On fischer projections, can someone explain to me the trades that you can make between the substituents to determine enantiomers, diastereomers etc...

 

[PooyaH]

On fischer projections, can someone explain to me the trades that you can make between the substituents to determine enantiomers, diastereomers etc...

S-R -> R-R = diast.
S-R -> S-S = diast.
S-R -> R-S = enant.
R-S -> S-R= enant.

 

[nixon13]

cool thanks!

 

[Maygyver]

I just remember that if you have an inversion of configuration at every chiral center it is an enantiomer. If atleast one of them stays the same it will be a diastereomer.