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Herein, copper-catalyzed direct C-C bond cleavage of amides fused to 8-aminoquinoline as a directing group to form urea in the presence of amines and dioxygen is reported. Compared to the previous C-H aminations of amides via C-H activation, this reaction presents a catalyst and oxidant controlled C-C bond cleavage strategy that enables amidation through a radical process. CuBr/Ag 2 CO 3 /O 2 shows the best catalytic result at 150 °C. A series of aryl and alkyl amides were compatible with this transformation. Notably, this method provided access to cyclohexanone, one of the most important industrial materials. The pathway of this reaction was investigated.

Hydroxyl group and pyridinium salt-bifunctionalized nanoporous ionic organic networks prepared via a simple two-step strategy under metal- and template-free conditions are presented. The structural features of the resultant polymer (e.g. high surface area, abundant hydroxyl groups and ionic functionalities) made it a promising candidate as an efficient scavenger of toxic oxo-anions from water.

A dual redox-responsive pillar[6]arene-based supramolecular amphiphile was fabricated in water. The self-assembly behavior of this supramolecular amphiphile in response to dual redox stimuli was investigated.

A type of benzoquinone-derived porous organic polymer with hydrophenazine linkages, porous hydrophenazine frameworks, has been developed. Their application in iodine capture from both air and solution was investigated.

The first selenium-containing pillar[5]arene-based macrocyclic amphiphile was synthesized. This amphiphile self-assembled in water to form vesicles with redox responsiveness. Furthermore, these pillar[5]arene-based vesicles were used in the controlled release of small molecules with DOX as the model compound.

Preorientation of the terminal coumarins of a crown ether with the assistance of taco-type host-guest complex formation promotes regio- and stereo-selectivity of coumarin photodimerization to give only the syn head-to-tail coumarin isomer.

The first γ-radiation responsive linear supramolecular via pillararene-based host-guest recognition polymer was built successfully. What is more, this supramolecular polymer exhibited dual redox responsiveness.

A Cu(2+) specific metallohydrogel was constructed from a terpyridine-based low molecular weight ligand. The metallohydrogel showed multi-responsive gel-to-sol transitions and pillar[5]arene-induced nanofiber-to-vesicle transformation at the nanoscale.

A fluorescent supramolecular polymer was efficiently constructed by pillar[5]arene-based host-guest molecular recognition and zinc ion coordination.

The aggregate morphology of a CO2-responsive pillar[5]arene was reversibly controlled between toroid-like assemblies and irregular aggregates by bubbling CO2 and N2 repeatedly.

Silver nanoparticles can reversibly self-assemble driven by host-guest interactions based on water-soluble pillar[n]arenes.