REACTIONS DE TRANSCETALISATION-III. APPROCHE QUANTITATIVE DE LA SELECTIVITE ET DU RENDEMENT POUR LES MOLECULES DIFONCTIONNELLES.

Article abstract of DOI:10.1016/0040-4020(80)80012-3

Evidence for an intramolecular transketalization equilibrium in a polyfunctional molecule is described.Using thermodynamic rules, it is possible to establish mathematical equations linking yields with relative ketalization energies and excess of reagent.Experiments with simple compounds are in good agreement with the results obtained from the mathematical model.Thus, for any bifunctional molecule, one can calculate the relative ketalization energy of each function from a simple experiment, and then determine the nature and the excess of the reagent which are necessary to realize the transketalization reaction in the best conditions of yield or selectivity.