Asymmetric induction
（重定向自Chiral induction）
![A Gibbs free energy plot of an enantioselective addition reaction. The effect of asymmetric induction is to lower the transition state energy for the formation of one enantiomer over the other](/Images/godic/202501/04/Energy_diagram_for_enantioselective_synthesis0318.png")
![](/Images/godic/202501/04/CramruleOfAsymmetricInduction0318.png")
![](/Images/godic/202501/04/CramAsymmetricInductionChugaevReaction0318.png")
![](/Images/godic/202501/04/FelkinModel0318.png")
Asymmetric induction (also enantioinduction) in stereochemistry describes the preferential formation in a chemical reaction of one enantiomer or diastereoisomer over the other as a result of the influence of a chiral feature present in the substrate, reagent, catalyst or environment. Asymmetric induction is a key element in asymmetric synthesis.