Reduction by magnetic nano-Fe(3)O(4)-Ni: a facile, simple and environmentally friendly hydrogen-transfer reaction that takes place over recyclable ferrite-nickel magnetic nanoparticles (Fe(3)O(4)-Ni) by using glycerol as hydrogen source allows aromatic amines and alcohols to be synthesized from the precursor nitroarenes and carbonyl compounds.

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Nano‐MgO/ZrO2 is prepared and used as catalyst for cross‐aldol condensation, Cbz‐protection of amines, reduction of aromatic nitro compounds and the synthesis of 1,5‐benzodiazepines.

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Magnetic cleansing: A magnetic Fe3O4–Co catalyst was prepared using inexpensive precursors and its catalytic activity was tested for the oxidation of alcohols using tert‐butyl hydroperoxide (TBHP) as the oxidant. The corresponding carbonyl compounds were obtained in good to excellent yields (see scheme); furthermore, this magnetic catalyst could be separated by magnetic decantation without significant loss in activity.