Synthesis of Pd(0) nanocatalyst using lignin in water for the Mizoroki–Heck reaction under solvent-free conditions

Marulasiddeshwara, M.B.; Kumar, P. Raghavendra

doi:10.1016/j.ijbiomac.2015.11.034

Cited by 39 publications

(25 citation statements)

References 46 publications

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“…The presence of the lignin moiety in the lignin 5AgNPs and lignin 1.25AgNPs-PAA was clearly detected from the aromatic ring bands at ∼1590 and ∼1505 cm −1 and the C−O deformation of the methoxy groups at ∼1040 cm −1 . 38,46,51 Peaks at ∼3414 and ∼1265 cm −1 from the phenolic hydroxyl (−OH) groups of lignin were also observed. These peaks either decreased in intensity or disappeared after the lignin oxidation by silver (lignin 5AgNPs and lignin 1.25AgNPs-PAA), indicating that the catechol groups of the lignin were oxidized to quinone groups by the silver ions (Ag + ).…”

Section: Resultsmentioning

confidence: 93%

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Combined Catalysis for Engineering Bioinspired, Lignin-Based, Long-Lasting, Adhesive, Self-Mending, Antimicrobial Hydrogels

et al. 2020

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Section: Resultsmentioning

confidence: 93%

“…Procedure for Preparing the Lignin 5PdNPs. 37,38 The lignin PdNPs were prepared following the methods in a previous report with minor modifications. An aqueous solution of 20 mg/mL lignin was prepared by adding the lignin (100 mg) to DI water (5 mL) and vortexing and sonicating until it was fully dissolved.…”

Section: Methodsmentioning

confidence: 99%

Combined Catalysis for Engineering Bioinspired, Lignin-Based, Long-Lasting, Adhesive, Self-Mending, Antimicrobial Hydrogels

et al. 2020

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“…Even though the yield of compound 7 was moderate, which could be due to the lower incorporation of Cu and its predominant distribution on the surface of the BNC, this opened the room for the further optimisation study. Previously, copper nanoparticles were efficiently loaded on the surface of pure cellulose acetate and showed remarkable catalytic properties for the reduction of 4-nitro phenol [16] while copper nanoparticles were also successfully generated inside cellulose matrix using Terminalia catappa leaf extract [47].…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Production of bacterial nanocellulose (BNC) and its application as a solid support in transition metal catalysed cross-coupling reactions

Jeremić

Djokić

Ajdačić

et al. 2019

International Journal of Biological Macromolecules

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Please cite this article as: S. Jeremic, L. Djokic, V. Ajdačić, et al., Production of bacterial nanocellulose (BNC) and its application as a solid support in transition metal catalysed cross-coupling reactions, International Journal of Biological Macromolecules, https://doi. AbstractBacterial nanocellulose (BNC) emerged as an attractive advanced biomaterial that provides desirable properties such as high strength, lightweight, tailorable surface chemistry, hydrophilicity, and biodegradability.BNC was successfully obtained from a wide range of carbon sources including sugars derived from grass biomass using Komagataeibacter medellinensis ID13488 strain with yields up to 6 g L -1 in static fermentation. Produced BNC was utilized in straightforward catalyst preparation as a solid support for two different transition metals, palladium and copper with metal loading of 20 and 3 weight %, respectively. Sustainable catalysts were applied in the synthesis of valuable fine chemicals, such as biphenyl-4-amine and 4'fluorobiphenyl-4-amine, used in drug discovery, perfumes and dye industries with excellent product yields of up to 99%. Pd/BNC catalyst was reused 4 times and applied in two consecutive reactions, Suzuki-Miyaura cross-coupling reaction followed by hydrogenation of nitro to amino group while Cu/BNC catalyst was examined in Chan-Lam coupling reaction.Overall, the environmentally benign process of obtaining nanocellulose from biomass, followed by its utilisation as a solid support in metal-catalysed reactions and its recovery has been described. These findings reveal that BNC is a good support material, and it can be used as a support for different catalytic systems.

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“…have been used as supports for nanocatalysts. [11][12][13] Among these materials, bentonites, zeolites, activated carbon, and aluminum oxide are widely used as catalyst and support for quite a lot of reactions as well.…”

Section: Introductionmentioning

confidence: 99%

Highly efficient transfer hydrogenation of carbonyl compounds over supported nickel and palladium nanoparticles

Thien

Minh

Khang

2021

Vietnam Journal of Chemistry

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In this work, metal nanoparticles were successfully synthesized through the reduction of metal salts using reducing agents such as: ethylene glycol (EG) and sodium borohydride (NaBH4). These metal nanoparticles were impregnated into the supports M‐X (M = Ni, Pd; X = Bent, C, Zeolite, and Al2O3) in high yield. The physio‐chemical properties of these catalysts were characterized by various techniques such as UV‐Vis spectroscopy, powder X‐ray diffraction (PXRD), Transmission electron microscopy (TEM) and the specific surface area of M‐X was evaluated by N2 adsorption isotherm analysis at 77 K. All results corroborated the loading process. Literally, TEM images indicated that the palladium and nickel nanoparticles size are 6 and 13 nm, respectively. The efficiency of these catalysts was performed on the transfer hydrogenation of various carbonyl substrates in the presence of potassium hydroxide at atmosphere pressure. The results showed that both nickel and palladium supported X catalysts exhibited high activities over 99 % within 60 min in the presence of potassium hydroxide.

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Synthesis of Pd(0) nanocatalyst using lignin in water for the Mizoroki–Heck reaction under solvent-free conditions

Cited by 39 publications

References 46 publications

Combined Catalysis for Engineering Bioinspired, Lignin-Based, Long-Lasting, Adhesive, Self-Mending, Antimicrobial Hydrogels

Combined Catalysis for Engineering Bioinspired, Lignin-Based, Long-Lasting, Adhesive, Self-Mending, Antimicrobial Hydrogels

Production of bacterial nanocellulose (BNC) and its application as a solid support in transition metal catalysed cross-coupling reactions

Highly efficient transfer hydrogenation of carbonyl compounds over supported nickel and palladium nanoparticles

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