Organic catalysis over zeolites and other molecular sieves: Shape-selective effects in catalytic transformations

With the discovery of the ZSM-5 family of medium pore zeolites, there evolved a remarkable capability for shape selective control of reaction selectivity in zeolite catalysis. Recently, there has been steady expansion of organic catalysis into synthesis of fine chemicals, pharmaceuticals and the environmental area. Much of this effort involves refined shape-selective applications of medium pore zeolites and exploits the potentials of the growing number of new zeolites. The focus of such activity includes regiospecific aromatic substitutions. halogenation of aromatics, nucleophilic substitution over Cu zeolites. dehydrocyclization, selective catalytic hydrogenation, heterocyclic synthesis, selective partial oxidations, base catalysis, carbonyl condensation reactions, olefin oligomerizations, diverse isomerizations and some stereoselective reactions.