Kinetics study on reactive extraction of hydroxy-(2-methyl-phenyl)-acetic acid enantiomers from organic solution by HP-β-CD

► The reactions between HA enantiomers and HP-β-CD are found to be the fast reaction. ► The reactions are first order with respect to HA and second with respect to HP-β-CD. ► HaR and HaS were calculated as 4.958 and 4.682, respectively, which are the condition for the validity of regime 3.