Catalytic asymmetric cascade reactions in which the substrates are transferred through well‐choreographed consecutive independent steps by a single catalyst have received increasing interest. By incorporating a chiral organocatalyst pyrrolidine, an oxidation catalyst polyoxometalate and a Lewis acid catalyst copper(II) into a single porous coordination network (PCN), two enantiomorph CuW‐PYIs (PYI=pyrrolidine‐2‐yl‐imidazole) with novel Kagomé lattice were achieved and applied in the conversion of aldehyde with ketone into value‐added chiral epoxy ketones in a one‐pot procedure. The chiral pyrrolidine organocatalysts interact with the carbonyl group of ketones throughout the reaction, which is beneficial for achieving compatibility between the reaction intermediates and synergy of the multiple catalytic cycles, thus driving the direct aldol/epoxidation cascade reaction in an orderly and asymmetrical way. Moreover, the “two‐center catalysis” principle was well demonstrated in the direct aldol/epoxidation cascade reactions.

A hydrophilic inorganic porous catalyst was prepared via the hydrothermal method. The combination of [WZn(HO)(ZnWO)] and Co(ii) provides a synergistical catalytic way to promote oximation of aldehyde/ketone with in situ generated hydroxylamine that initially produces an oxime, which further either dehydrates into a nitrile or undergoes a Beckmann rearrangement to form an amide.

Kinetics experiments for the photodegradation of Rhodamine B (RhB) dye were followed with spectrophotometric analysis showing an absorbance decrease at 544 nm resulting from the cleavage of the aromatic ring of RhB. UV spectroscopy indicated that the degradation proceeds with a pseudo-firstorder rate constant in the range of 10 À3 to 10 À2 s À1. These results demonstrate that the hybrids have effective activity and reusability for the photodegradation of RhB.