Chiral catalysts are substances that speed up chemical reactions while promoting the formation of chiral molecules, which are compounds that have non-superimposable mirror images. These catalysts are essential in the field of asymmetric synthesis, where the goal is to produce one specific enantiomer of a chiral molecule over the other. This selectivity is crucial in pharmaceuticals, as different enantiomers can have vastly different biological effects. The use of chiral catalysts can significantly enhance the efficiency and sustainability of chemical processes. They often allow for reactions to occur under milder conditions and reduce the need for excess reagents. Notable examples of chiral catalysts include chiral ligands and organocatalysts, which have been widely studied and applied in various chemical industries.