Cinchona alkaloid derivative modified Fe3O4 nanoparticles for enantioselective ring opening of meso-cyclic anhydrides

Making magnetic achiral surfaces chiral for asymmetric catalysis! Enantioselective meso-cyclic anhydride ring opening is demonstrated on the surface of modified-quinidine capped Fe3O4 nanoparticles.

Novel amide-functionalized chloramphenicol base bifunctional organocatalysts for enantioselective alcoholysis of meso-cyclic anhydrides

A family of novel chloramphenicol base-amide organocatalysts possessing a NH functionality at C-1 position as monodentate hydrogen bond donor were developed and evaluated for enantioselective organocatalytic alcoholysis of meso-cyclic anhydrides. These structural diversified organocatalysts were found to induce high enantioselectivity in alcoholysis of anhydrides and was successfully applied to the asymmetric synthesis of (S)-GABOB.