A site-isolated Lewis acidic aluminium and Brønsted basic amine sites in the dimeric silsesquioxane cage as a reusable homogeneous bifunctional catalyst for one-pot tandem deacetalization/deketalization-Knoevenagel condensation reactions

Robust, environment-friendly Al-POSS-NH 2 exhibits reusable homogeneous bifunctional catalytic performance towards one-pot tandem reactions due to the synergism and compartmentalization between Lewis acidic aluminium and Brønsted basic amine sites.