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Mixed Iron and copper hexacyanocolbatate is a suitable heterogeneous and recoverable catalyst for the aerobic oxidn. of oximes to the corresponding ketone. The reaction can be conveniently carried out in water-​ethanol 1:1 mixt. as solvent. The time-​conversion plots shows an induction period that do not correspond to the leaching of metal ions or to the damage of the crystal structure of the material. The proposed reaction mechanism is based on the cooperation of the Lewis acidity of iron with the ability of copper to interact with oxygen. Given the remarkable stability of metal hexacyanocobaltates and the large diversity of metals that can contain, the authors' reports opens the way for the general use of these affordable and accessible solids as heterogeneous catalysts., Alma Garcia thanks Mexican CONACYT for financial support for her stay at Valencia. E.R. thanks the support provided by CONACyT through the Projects 129048 and 174247.

The novel complex IndðCOÞ3Mo–RuðCOÞ2Cp (1) (Ind ¼ g5-indenyl; Cp ¼ g5-cyclopentadienyl), as well as other hetero and homo metallic complexes of molybdenum and ruthenium are catalyst precursors in the aerobic oxidation of THF under ambient conditions. Selectivities towards c-butyrolactone of up to 70% are obtained. For the first time in this transformation, propylformate is isolated besides the lactone.