Stereoselectivity is the preference of a reaction to yield a particular stereoisomer when multiple stereoisomers are possible. In catalysis, this typically involves the formation of chiral centers, where the catalyst influences the reaction to produce one enantiomer or diastereomer over another. An example of stereoselective catalysis is the use of chiral catalysts in asymmetric hydrogenation, where the catalyst preferentially produces one enantiomer of a chiral molecule.
