Cross-Linked Porous Polymers as Heterogeneous Organocatalysts for Task-Specific Applications in Biomass Transformations, CO₂ Fixation, and Asymmetric Reactions

Metal-free catalysis is particularly challenging in the context of green and sustainable chemistry. High toxicity associated with the leaching of the metals from the catalysts has notorious environmental impact. To surmount such an effect, homogeneous organocatalysis can provide a green and alternative protocol. However, it suffers the drawbacks of low activity and selectivity, because of the neighboring effect of the solvent, and it is devoid...