Hybrid Pd_0.1Cu_0.9Co₂O₄ nano-flakes: a novel, efficient and reusable catalyst for the one-pot heck and Suzuki couplings with simultaneous transesterification reactions under microwave irradiation.

IF 3.8 3区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Frontiers in Chemistry Pub Date : 2024-10-30 eCollection Date: 2024-01-01 DOI:10.3389/fchem.2024.1496234

Ashok Raj Patel, Gurupada Maity, Tanmay K Pati, Laksmikanta Adak, Christopher L Cioffi, Subhash Banerjee

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Abstract

We report the fabrication of a novel spinel-type Pd₀.₁Cu₀.₉Co₂O₄ nano-flake material designed for Mizoroki-Heck and Suzuki coupling-cum-transesterification reactions. The Pd₀.₁Cu₀.₉Co₂O₄ material was synthesized using a simple co-precipitation method, and its crystalline phase and morphology were characterized through powder XRD, UV-Vis, FESEM, and EDX studies. This material demonstrated excellent catalytic activity in Mizoroki-Heck and Suzuki cross-coupling reactions, performed in the presence of a mild base (K₂CO₃), ethanol as the solvent, and microwave irradiation under ligand-free conditions. Notably, the Heck coupling of acrylic esters proceeded concurrently with transesterification using various alcohols as solvents. The catalyst exhibited remarkable stability under reaction conditions and could be recycled and reused up to ten times while maintaining its catalytic integrity.

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杂化 Pd0.1Cu0.9Co2O4 纳米薄片：一种新型、高效、可重复使用的催化剂，用于微波辐照下的一锅赫克和铃木偶联反应以及同时进行的酯交换反应。

我们报告了一种新型尖晶石型 Pd₀.₁Cu₀.₉Co₂O₄ 纳米薄片材料的制备过程，该材料设计用于 Mizoroki-Heck 和铃木偶联兼酯化反应。采用简单的共沉淀法合成了 Pd₀.₁Cu₀.₉Co₂O₄材料，并通过粉末 XRD、UV-Vis、FESEM 和 EDX 研究对其晶相和形貌进行了表征。在温和碱（K₂CO₃）、乙醇作为溶剂和微波辐照等无配体条件下，该材料在 Mizoroki-Heck 和铃木交叉偶联反应中表现出优异的催化活性。值得注意的是，丙烯酸酯的赫克偶联反应与以各种醇为溶剂的酯交换反应同时进行。该催化剂在反应条件下表现出极高的稳定性，可回收重复使用多达十次，同时保持其催化完整性。

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来源期刊

Frontiers in Chemistry Chemistry-General Chemistry

CiteScore

8.50

自引率

3.60%

发文量

1540

审稿时长

12 weeks

期刊介绍： Frontiers in Chemistry is a high visiblity and quality journal, publishing rigorously peer-reviewed research across the chemical sciences. Field Chief Editor Steve Suib at the University of Connecticut is supported by an outstanding Editorial Board of international researchers. This multidisciplinary open-access journal is at the forefront of disseminating and communicating scientific knowledge and impactful discoveries to academics, industry leaders and the public worldwide. Chemistry is a branch of science that is linked to all other main fields of research. The omnipresence of Chemistry is apparent in our everyday lives from the electronic devices that we all use to communicate, to foods we eat, to our health and well-being, to the different forms of energy that we use. While there are many subtopics and specialties of Chemistry, the fundamental link in all these areas is how atoms, ions, and molecules come together and come apart in what some have come to call the “dance of life”. All specialty sections of Frontiers in Chemistry are open-access with the goal of publishing outstanding research publications, review articles, commentaries, and ideas about various aspects of Chemistry. The past forms of publication often have specific subdisciplines, most commonly of analytical, inorganic, organic and physical chemistries, but these days those lines and boxes are quite blurry and the silos of those disciplines appear to be eroding. Chemistry is important to both fundamental and applied areas of research and manufacturing, and indeed the outlines of academic versus industrial research are also often artificial. Collaborative research across all specialty areas of Chemistry is highly encouraged and supported as we move forward. These are exciting times and the field of Chemistry is an important and significant contributor to our collective knowledge.