Corrigendum to “Amidoxime modified PAN supported palladium complex: A greener and efficient heterogeneous catalyst for heck reaction” [Inorg. Chim. Acta 502 (2020), 119305]

Sruthi, Pambingal Rajan; Sarika, Vijayalekshmi; Suku, Arya; Krishnan, Aravind; Anas, S.

doi:10.1016/j.ica.2020.119742

Cited by 4 publications

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“…The effect of solvent was first examined and the results were shown in Figure 5. Compared with the solvents of xylene and glycol, Pd@PDA‐CPVC catalyzed Heck coupling reaction of iodobenzene with n‐butyl acrylate afforded better yields in N , N ‐dimethylformamide (DMF), dimethylsulfoxide (DMSO) and N ‐methylpyrrolidone (NMP) solvents 32,33 . Among the three solvents, DMSO was chosen for the following study.…”

Section: Resultsmentioning

confidence: 99%

Ultrafine palladium nanoparticles confined in polydopamine functionalized chlorinated poly(vinyl chloride) nanofibers for Heck reaction

Luo

Xie

Zheng

et al. 2022

J of Applied Polymer Sci

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Polydopamine has been considered as the adhesive of mussels to solid surfaces in biological systems. The development of dopamine and polydopamine functionalized nanofibrous materials is highly desirable for catalysis, drug delivery and tissue engineering. Polydopamine induced surface functionalized solid matrices have been proved to be efficient supporting materials for palladium nanoparticles. In this study, the dopamine monomers were first incorporated into the Pd2+/chlorated poly(vinyl chloride) (CPVC) composite nanofibers by electrospinning and then polymerized in basic and reductive solution at elevated temperature to prepare stable polydopamine functionalized CPVC supported palladium composite nanofibers. Scanning electron microscopy images show that uniform and smooth nanofibers with diameter of ~325 nm have been prepared and high temperature can promote their solvent resistance. Fourier transformed infrared and UV–visible (UV–Vis) spectra confirmed the synthesis of polydopamine inside the composite nanofibers. The ultrafine palladium nanoparticles inside the composite nanofibers were characterized by X‐ray spectroscopy and transmission electron microscopy. Although these palladium nanoparticles were confined inside the nanofibers, they exhibited excellent catalytic efficiency for the Heck reactions of aryl iodides with alkenes. Moreover, this novel fibrous catalyst could be easily recovered by simple filtration and reused at least five times without obviously loss of initial catalytic activity. In all, we have developed a distinctive way for the synthesis of polydopamine functionalized polymeric materials for catalysis and other applications.

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Section: Resultsmentioning

confidence: 99%

Ultrafine palladium nanoparticles confined in polydopamine functionalized chlorinated poly(vinyl chloride) nanofibers for Heck reaction

Luo

Xie

Zheng

et al. 2022

J of Applied Polymer Sci

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“…Another interesting study by Z. C. Wu et al deals with the explorations of amidoxime‐modified fiber‐Palladium (II) complexes as heterogeneous catalysts in Suzuki cross coupling reaction . Recently, our group has reported amidoxime‐modified PAN supported Palladium complex m‐PAN‐Pd as a greener and efficient heterogeneous catalyst for Heck coupling reaction of a series of aryl halides 21 and alkenes 22 to afford the corresponding products 23 in good to excellent yields . This supported catalyst also showed excellent reusability up to five runs without significant loss of catalytic activity (Scheme .…”

Section: Nitrile Group Modifications In Polymersmentioning

confidence: 99%

An overview of synthetic modification of nitrile group in polymers and applications

Sruthi

Anas

2020

Journal of Polymer Science

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The physicochemical properties of polymers are mainly dependent on the nature of polymer backbone and/or pendant groups linked to the main chain. Therefore, synthetic modification of these functional groups via post functionalization is an important approach for obtaining novel polymeric systems with improved properties and targeted applications. In this context, the synthetic modifications of nitrile group in polymers into various useful functionalities have received considerable attention and several interesting applications of the resulting polymers have been identified. The majority of the studies are based on Polyacrylonitrile (PAN), and some isolated examples of nitrile functionalization in copolymers such as Poly (Styrene-co-Acrylonitrile) (SAN), Poly (Acrylonitrile-co-Butadiene-co-Styrene (ABS) and Nitrile Rubber (NBR) are available. These synthetic modifications are mainly accomplished by the reactions such as Nucleophilic addition, cycloaddition, reduction, and hydrolysis using various reagents. These studies describing the post-polymerization modifications of nitrile group in polymers reported during the last three decades are covered in this review.

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“…此外, 催化剂循环使用 5 次仍保持较高的活性. 他们又报道了 [56] 一种负载钯的纤维催化剂 m-PAN-Pd (22), 催化剂是通过胺肟改性的 PANF 与 PdCl 2 络合制备的. m-PAN-Pd 在一系列活化烯烃和芳基卤化物的 Heck 偶联反应中表现出良好的催化活性, 产物最高收率可达 96%. 此外, 催化剂可循环使用 5 次, 具有良好的稳定性和活性.…”

Section: 偶联反应unclassified

Research Progress of Functional Polyacrylonitrile Fiber in Promoting Organic Reaction

Bai¹,

Peng²,

Ying³

2023

Chinese Journal of Organic Chemistry

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Polyacrylonitrile fiber (PANF) has excellent mechanical strength, chemical resistance and good thermal stability, and it is easy to be modified. Physical modification can be achieved by adding additives or functional monomers into polyacrylonitrile spinning dope or heat treating PANF. Chemical surface modification of PANF includes amination, amidation, oxidation, reduction, cross-linking, hydrolysis, acid treatment and chemical grafting. Surface modification brings many special functional groups to PANF, which can be further used as carriers of organic compounds, organic ligands, enzymes and transition metals. Functionalized PANF with catalytic activity was obtained by loading the catalytic active sites. In recent years, functional PANF has been widely used as heterogeneous catalyst in the field of organic synthesis. The research achievements and progress of functional PANF catalyst in organic reactions are reviewed, including condensation reaction, coupling reaction, addition reaction, redox reaction and multi-component one-pot reaction. The synthesis and structure of fiber catalyst are introduced, the catalytic performance is discussed, and the possible catalytic mechanism is analyzed, which pave the way for the development of better functional PANF. Keywords polyacrylonitrile fiber; carrier; modification; functionalization; catalysis; organic synthesis 为解决均相催化剂难以循环使用等问题, 将均相催化剂固定在载体材料上是一个有效的解决思路. 固定化催化剂有重复使用性能好、稳定性高、易于分离和回收等优点 [1] . 使用可回收的催化剂进行有机合成, 最大限度地提高催化效率, 减少废物和污染, 符合绿色和可持续化学的概念, 也是当下的热点 [2] . 各种材料被用作固定均相催化剂的载体, 如无机载体(分子筛 [3] 、沸石 [4] 和二氧化硅 [5] 等)、有机高分子载体(纤维素 [6] 、树脂 [7] 和壳聚糖 [8] 等)和复合载体(磁性二氧化硅 [9] 和复合金属氧化物 [10] 等). 有机聚合物载体通常具有成本低和易于修饰的优点, 聚合物负载的催化剂由于其独特的微环境可以增强催化活性和反应的选择性 [11] .聚丙烯腈纤维(Polyacrylonitrile fiber, PANF)被称为人造羊毛, 是人工合成的聚合物材料, 在工业和日常生活中应用广泛. PANF 广泛应用于服装、储能材料 [12][13] 、污水净化材料 [14][15] 、化学传感器 [16][17] 及固体催化剂 [18][19] 等领域. 现今, PANF 的应用超出了其在材料科学领域的一般应用.

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Corrigendum to “Amidoxime modified PAN supported palladium complex: A greener and efficient heterogeneous catalyst for heck reaction” [Inorg. Chim. Acta 502 (2020), 119305]

Cited by 4 publications

References 0 publications

Ultrafine palladium nanoparticles confined in polydopamine functionalized chlorinated poly(vinyl chloride) nanofibers for Heck reaction

Ultrafine palladium nanoparticles confined in polydopamine functionalized chlorinated poly(vinyl chloride) nanofibers for Heck reaction

An overview of synthetic modification of nitrile group in polymers and applications

Research Progress of Functional Polyacrylonitrile Fiber in Promoting Organic Reaction

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