Enzyme-like Enantioselectivity in GTM Chiral Zeolite Catalysts upon Preactivation of Ge Sites.

ABSTRACT: Extra-large-pore Ge-containing GTM chiral zeolite catalysts have recently proved useful asymmetric catalysts, with chirality emerging from their chiral confined nanospace. However, so far these exceptional materials have suffered from low framework stability in the presence of water and moderate catalytic enantioselectivity in the ring-opening of chiral trans-stilbene oxide with 1-butanol used as a test reaction. Here, we report that these chiral zeolite catalysts can be easily stabilized upon exposure of the calcined material to 1-butanol, providing stability against water and, most importantly, prompting a preactivation of the chiral active sites that boosts their enantioselective properties, reaching unprecedented enantiomeric excesses up to 88% where one enantiomer reacts 16 tim

SUBMITTER: de la Serna R 

PROVIDER: S-EPMC12550838 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature