https://doi.org/10.1351/goldbook.O04315
In a @C01033@ involving @C01057@ reactants and products, the ratio of the @O04310@ of the product to that of the precursor, reactant or @C00876@. This should not be confused with @E02070@. The optical yield is in no way related to the @C01041@ of the reaction.
See:
stereoselectivity