In this paper, the 3D porous polycalix functionalized with dual Bronsted- Lewis acidic double-charged DABCO-based ionic liquid group (PC4RA@[SiPrDABCO@BuSO3H](FeCl4)) was synthesized using multiple steps, characterized, and then evaluated by spiro...
A 3D porous organic polymer was synthesized using a calix[4]resorcinarene macrocycle. The cavity-containing polymer was modified with inorganic Brønsted acid (OWO3H) to simultaneously use host-guest and acidic aspects of this catalyst in 4H-pyrans.
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