| Anderson-Type polyoxometalate catalyst for oxidation of aldehydes to carboxylic acids: Efficient, and Recyclable |
| کد مقاله : 1220-ICOC |
| نویسندگان |
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سیده صغری حسینی مطلق *، علی زرنگاریان دانشگاه یاسوج |
| چکیده مقاله |
| Abstract Anderson-type polyoxometalates (POMs) constitute a pivotal and widely investigated subclass within the polyoxometalate family. Owing to their exceptional structural versatility, tunable redox and acidic properties, and amenability to diverse functionalization strategies, Anderson-type POMs serve as highly adaptable platforms for the rational design and controlled synthesis of catalytic materials. Consequently, they demonstrate outstanding catalytic performance across a broad range of chemical transformations. Critically, certain catalytic functions particularly those requiring well-defined, high-symmetry anionic architectures with tunable redox and Brønsted acidity can be uniquely realized using Anderson-type polyoxometalates, underscoring their indispensable role in the rational development of next-generation catalytic systems. The covalent functionalization of Anderson-type polyoxometalates (POMs) has attracted significant interest, enabling their tailored integration into diverse applications including heterogeneous and photocatalysis, biomedicine, energy conversion, and storage [1]. Within this context, the development of green and sustainable catalytic protocols for the oxidation of aldehydes to carboxylic acids represents a challenge of both academic and industrial relevance. Conventional methods typically rely on stoichiometric amounts of hazardous oxidants, generating substantial waste and posing considerable environmental and safety risks thereby underscoring the urgent need for catalytic, atom-economical alternatives. Herein, we report the rational design and synthesis of a copper centered Anderson-type polyoxometalate, [N(n-Bu)₄]₂[CuMo₆O₁₈(OH)₃] (abbreviated as CuMo₆O18), and its application as a robust, reusable catalyst for the oxidation of diverse aldehydes to the corresponding carboxylic acids under mild, base-free conditions (Scheme 1). The catalytic activity, substrate scope, reusability, and structural stability of CuMo₆O18 were systematically evaluated, revealing its high efficiency and excellent functional group tolerance. Scheme 1. Synthesis of carboxylic acids catalyzed by [Cu Mo6O18]. |
| کلیدواژه ها |
| Catalyst, Oxidation, Anderson, Polyoxometalate |
| وضعیت: پذیرفته شده |