Also contains definition of: percent diastereoisomer excess
https://doi.org/10.1351/goldbook.D01675
This is defined by analogy with [and the percent diastereoisomer excess as ], where the and ( ). The term is not applicable if more than two
enantiomer excess
, as mole
fractions of two diastereoisomers
in a mixture or the fractional yields of two diastereoisomers
formed in a reaction are diastereoisomers
are present. Frequently this term is abbreviated to See:
diastereoisomerism
, stereoselectivity