Cover Feature: Efficient and Spatially Controlled Functionalization of SBA‐15 and Initial Results in Asymmetric Rh‐Catalyzed 1,2‐Additions under Confinement (ChemCatChem 10/2021)

The Cover Feature shows asymmetric catalysis on mesoporous silica, which is selectively functionalized in a spatially controlled manner with highly selective complex catalysts the mesopore walls. In their Full Paper, A.-K. Beurer et al. describe new method, ensures special control step that exclusively surface clickable linker. This makes it possible to study unambiguously confinement effects during catalyzed reactions. First, silanol groups particle and pore entrances of SBA15 are passivated. Then, template removed by solvent extraction and, afterwards, walls 3-azidopropyltriethoxysilane before catalyst clicked initial experiments Rh-catalyzed 1,2-addition, high enantiomeric excess obtained.More information can be found Paper