Herein, we reported the efficient method for synthesis of aldehydes, ketones and carboxylic acids from olefins catalyzed by inorganic‐ligand Fe (III) catalyst, (NH4)3[FeMo6O18(OH)6]. This transformation features sustainable conditions and utilizes commercially available H2O2 as the sole oxidant and CH3CN/ AcOH as the solvent. The simple synthesized catalyst has high efficiency towards the reactions under mild conditions and can be recycled at least six times with keeping stable activity. At the same time, the controllable products in the reaction have the potential for industrial application.
The selective oxidation of alkylarene is a quite straightforward and appealing way for production of aromatic aldehydes, ketones and aromatic acid derivatives. We synthesized Cr(III) catalyst, (NH4)3[CrMo6O18(OH)6], with reasonable activity towards selective oxidation of alkylarenes under mild conditions. The catalyst is supported by a central chromium mononucleus and a cyclic inorganic ligand composed of six MoVIO6 octahedra, avoiding the disadvantages of expensive and non‐recyclable organic ligand. It is efficient, green and can be recycled at least six times with high activity. At the same time, a wide range of substituted alkylarenes were found to be compatible, providing the corresponding carbonyl compounds in moderate‐to‐high yield.
N-formylation of amines with CO2 is a valuable approach to utilizing CO2 as a C1 source in organic synthesis. Herein we presented a highly efficient N-formylation of amines with CO2 and KBH4 catalyzed by (NH4)4[NiMo6O18(OH)6], which is composed of central Ni(II) core supported by MoVIO6 inorganic ligands, and provided corresponding formamides with good selectivity and yields for various primary and secondary amines under mild conditions. Moreover, primary diamines could also be efficiently formylated to afford diformamides. The catalyst could be recycled for six times without significant decrease in catalytic activity and used in gram-scale synthesis. Finally, the reaction mechanism was presented based on the related literature reports and control experiments.
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