Etude cinetique de la catalyse par LiClO4 de la reaction d'esterification des olefines

LiClO₄ catalyses the addition of CHCl₂CO₂H to olefins (cyclopentene cycloheptene and trans-cyclo-octene). Specific salt effects are discussed in terms of general acid catalysis. This mechanism is supported by the linear relation: log k_ex = ? αH_o + β. Solvent isotope effects show a slow proton transfer. Eyring parameters are determined; ΔS* < 0. These experiments are consistent with a mechanism involving carbocation formation as the slow step.