C. Collet et P. Laszlo, COMPETITIVE PRODUCT INHIBITION IN A CLAY-CATALYZED DIELS-ALDER REACTION, Journal of physical organic chemistry, 8(7), 1995, pp. 468-472
The normal electron-demand Diels-Alder cycloaddition between cyclopent
adiene and methyl vinyl ketone is inhibited by the cydoadduct, when ca
talyzed by kaolinite-supported zinc chloride. This inhibition stems fr
om occupation of the catalytic sites by both the cycloadduct and methy
l vinyl ketone, Catalysis occurs in this case exclusively by a decreas
e in the enthalpy of activation.