Aldehyde Deoxygenation on Solid Acid Catalysts: Kinetic Consequences of Reactant Size and Active Site Confinement

Aldehyde deoxygenation on H⁺ sites occurs via competitive bimolecular or unimolecular pathways that evolve unsaturated aldehyde or alkene, respectively; the selectivities vary with reactant size and the extent of local H⁺ confinement within solid structures, because these factors influence the relative transition state stability of the kinetically-relevant steps.