Recyclable Cellulose-Derived Fe3O4@Pd NPs for Highly Selective C–S Formation by Heterogeneously C–H Sulfenylation of Indoles

Li, Shengyi; Wang, Jinguo; Jin, Jiye; Tong, Jianying; Shen, Chao

doi:10.1007/s10562-020-03144-9

Cited by 7 publications

(5 citation statements)

References 29 publications

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“…The resulting layered composite was found to efficiently catalyze heterogeneously C-H sulfenylation of indoles for the preparation of 3-sulfenylindoles (Scheme 4). The recoverable catalyst was separated from the reaction mixture using an outside magnetic field and could be recycled five times [95]. [94].…”

Section: In C-heteroatom Couplingmentioning

confidence: 99%

Wood-Sourced Polymers as Support for Catalysis by Group 10 Transition Metals

et al. 2022

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Despite providing interesting solutions to reduce the number of synthetic steps, to decrease energy consumption or to generate less waste, therefore contributing to a more sustainable way of producing important chemicals, the expansion of the use of homogeneous catalysis in industrial processes is hampered by several drawbacks. One of the most important is the difficulty to recycle the noble metals generating potential high costs and pollution of the synthesized products by metal traces detrimental to their applications. Supporting the metals on abundant and cheap biosourced polymers has recently appeared as an almost ideal solution: They are much easier to recover from the reaction medium and usually maintain high catalytic activity. The present bibliographical review focuses on the development of catalysts based on group 10 transition metals (nickel, palladium, platinum) supported on biopolymers obtained from wood, such as cellulose, hemicellulose, lignin, and their derivatives. The applications of these catalysts in organic synthesis or depollution are also addressed in this review with examples of C-C couplings, oxidation, or hydrogenation reactions.

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Section: In C-heteroatom Couplingmentioning

confidence: 99%

Wood-Sourced Polymers as Support for Catalysis by Group 10 Transition Metals

et al. 2022

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“…The C-S coupling reactions between the iodoarene and aryl thiols with different groups such as OMe, F, COCH 3 , and NO 2 were equally efficient in the coupling reaction to produce Fig. 9 The formation of indole derivatives (Li et al 2020) © Springer, reproduced with permission the unsymmetrical diary sulfides in the range of 88-93% yield products. Aliphatic thiols were also resulted in the coupling reaction in the formation of unsymmetrical aryl alkyl thioether with a relatively lower yield of 75-80%, indicating the aliphatic thiols are less reactive in the C-S coupling than the aromatic thiols.…”

Section: Carbon-carbon Coupling Reactionsmentioning

confidence: 99%

“…The magnetically separable NP employed a 98% yield of the product using 1 mol% of the Fe 3 O 4 @Pd NPs. The catalyst was reused five times to give a 90% yield of the products (Li et al 2020). Santa Barbara Amorphous (SBA-15) is known as a hybrid catalyst due to the combination of organic and organometallic supporters.…”

Section: Carbon-carbon Coupling Reactionsmentioning

confidence: 99%

Recent developments of supported and magnetic nanocatalysts for organic transformations: an up-to-date review

Gebre

2021

Appl Nanosci

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Designing and building an ideal catalyst for organic reactions is needed to increase the efficiency, reaction conditions, and to reduce its environmental impacts. The growth of nanotechnology is realized in the production of various nano-level catalysts for different applications. The as-synthesized nanocatalysts are easily manipulated to a desired shape and size with a high surface area to volume ratio, which is their critical property of the interaction of the nanomaterials with the substrates. These days, a vast array of catalysts (nanocatalysts) such as metals, metal oxides, magnetic, and alloyed/mixed nanocatalysts are applied in organic reactions to synthesize important chemicals in industries and pharmaceutical sectors with a high yield, selectivity, and reusability via reduction/hydrogenation, oxidation, condensation, C-C coupling, cyclization, and more. Consequently, this present review highlights the application of various nanocatalysts in organic reactions by combining certain proposed reaction mechanisms that have shown the impact of nanoparticles on the reactions. The factors influencing nanocatalyst performances are also discussed. Finally, the conclusion and future prospects are conveyed.

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“…Because of the abundance in nature, easy availability and good degradability, [9–13] sodium alginate is considered as a promising candidate for bioplastic [14–19] . In recent years, researches on sodium alginate‐based bioplastics have been focused on the addition of various additives (such as cellulose, [20] multi‐walled carbon nanotubes [21] ) which may help to improve their mechanical properties or the surface modification (using hydrophobic dodecyltrimethoxysilane, [22] dodecyl glycidyl ether, [23] silica nanoparticles [24] or methyl trimethoxysilane [25] ) which aims to increase its hydrophobicity. In addition, specific molecules have been grafted onto the sodium alginate molecular chain, such as β‐carboxyethyl acrylate, acrylamide and ϵ‐polylysine, ultimately conferring the sodium alginate with antimicrobial properties [14,26] .…”

Section: Introductionmentioning

confidence: 99%

Modified Sodium Alginate for Degradable Supramolecular Plastic with High Mechanical Strength

Liu,

Niu,

Chen

et al. 2024

ChemistrySelect

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Plastic products are widely used in daily life. However, due to the non‐degradability, these plastics pose a great threat to the ecological environment and may even endanger human's health or animal's life. In this paper, we report a degradable and reusable supramolecular plastic. This plastic consists of FeCl3 and polyethylene glycol (PEG) modified sodium alginate (SA). Notably, this plastic exhibits excellent mechanical properties, i. e. it can withstand a load as heavy as 15 kg. This superior mechanical property originates from the double crosslinked network formed based on coordination interaction between Fe3+ and −COOH and hydrogen bonding among −OH, −COOH and oxygen atom from PEG. In addition, this plastic can be reused for multiple times with negligible change in the mechanical strength and is fully degradable. We thus believe the supramolecular plastic reported in the current study may show great promises in the practical fields.

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Recyclable Cellulose-Derived Fe3O4@Pd NPs for Highly Selective C–S Formation by Heterogeneously C–H Sulfenylation of Indoles

Cited by 7 publications

References 29 publications

Wood-Sourced Polymers as Support for Catalysis by Group 10 Transition Metals

Wood-Sourced Polymers as Support for Catalysis by Group 10 Transition Metals

Recent developments of supported and magnetic nanocatalysts for organic transformations: an up-to-date review

Modified Sodium Alginate for Degradable Supramolecular Plastic with High Mechanical Strength

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