Preparing magnetic multicomponent catalysts via a bio-inspired assembly for heterogeneous reactions

Song, Wentong; Tao, Shengyang; Yu, Yingzhe; Du, Xuanlu; Wang, Shuo

doi:10.1039/c6ra12088a

Cited by 5 publications

(3 citation statements)

References 48 publications

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“…Furthermore, some of the biological properties of plant polyphenols such as antibacterial activity, antioxidant activity, and other properties are conferred into the coatings. Already there is a rapidly growing body of reports employing nitrogen free polyphenol coatings for a variety of purposes. ,,− An important consequence of the enormous biological diversity of plant polyphenols is that hundreds if not thousands of natural plant polyphenols can now be considered as coating precursors, with a broad range of biological and chemical properties. We anticipate that this large biological toolbox of coating precursors will be increasingly exploited in the coming years, leading to unforeseen coating properties and applications.…”

Section: Future Opportunities and Challenges In Pd Coatingsmentioning

confidence: 99%

Polydopamine Surface Chemistry: A Decade of Discovery

Ryu

Messersmith

Lee

2018

ACS Appl. Mater. Interfaces

1,419

996

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Polydopamine is one of the simplest and most versatile approaches to functionalizing material surfaces, having been inspired by the adhesive nature of catechols and amines in mussel adhesive proteins. Since its first report in 2007, a decade of studies on polydopamine molecular structure, deposition conditions, and physicochemical properties have ensued. During this time, potential uses of polydopamine coatings have expanded in many unforeseen directions, seemingly only limited by the creativity of researchers seeking simple solutions to manipulating surface chemistry. In this review, we describe the current state of the art in polydopamine coating methods, describe efforts underway to uncover and tailor the complex structure and chemical properties of polydopamine, and identify emerging trends and needs in polydopamine research, including the use of dopamine analogs, nitrogen-free polyphenolic precursors, and improvement of coating mechanical properties.

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Section: Future Opportunities and Challenges In Pd Coatingsmentioning

confidence: 99%

Polydopamine Surface Chemistry: A Decade of Discovery

Ryu

Messersmith

Lee

2018

ACS Appl. Mater. Interfaces

1,419

996

View full text Add to dashboard Cite

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“…The final MCR adduct precipitated in the reaction medium and remained adsorbed in the heterogeneous catalysis, whereas in the homogeneous version, product separation was far less laborious. Some multicomponent syntheses, however, may be efficiently conducted under heterogeneous conditions with effective catalytic system recovery [ 196 , 197 , 198 , 199 , 200 , 201 ]. Metal–organic frameworks (MOFs) are, however, active, programmable and recyclable catalysts successfully applied in MCR syntheses, as recently reviewed elsewhere [ 202 , 203 , 204 ].…”

Section: Homogeneous and Heterogeneous Catalysismentioning

confidence: 99%

Catalytic Approaches to Multicomponent Reactions: A Critical Review and Perspectives on the Roles of Catalysis

2021

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In this review, we comprehensively describe catalyzed multicomponent reactions (MCRs) and the multiple roles of catalysis combined with key parameters to perform these transformations. Besides improving yields and shortening reaction times, catalysis is vital to achieving greener protocols and to furthering the MCR field of research. Considering that MCRs typically have two or more possible reaction pathways to explain the transformation, catalysis is essential for selecting a reaction route and avoiding byproduct formation. Key parameters, such as temperature, catalyst amounts and reagent quantities, were analyzed. Solvent effects, which are likely the most neglected topic in MCRs, as well as their combined roles with catalysis, are critically discussed. Stereocontrolled MCRs, rarely observed without the presence of a catalytic system, are also presented and discussed in this review. Perspectives on the use of catalytic systems for improved and greener MCRs are finally presented.

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“…Tao et al prepared a magnetic multicomponent catalyst for the Knoevenagel condensation and selective reduction of nitroarene [ 28 ]. Iron oxides and PdNPs were alternately loaded on hierarchically mesoporous silica using a bio-based, polyphenol-assisted layer-by-layer coating.…”

Section: Palladium Nanoparticlesmentioning

confidence: 99%

Palladium and Copper: Advantageous Nanocatalysts for Multi-Step Transformations

et al. 2021

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Metal nanoparticles have been deeply studied in the last few decades due to their attractive physical and chemical properties, finding a wide range of applications in several fields. Among them, well-defined nano-structures can combine the main advantages of heterogeneous and homogenous catalysts. Especially, catalyzed multi-step processes for the production of added-value chemicals represent straightforward synthetic methodologies, including tandem and sequential reactions that avoid the purification of intermediate compounds. In particular, palladium- and copper-based nanocatalysts are often applied, becoming a current strategy in the sustainable synthesis of fine chemicals. The rational tailoring of nanosized materials involving both those immobilized on solid supports and liquid phases and their applications in organic synthesis are herein reviewed.

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Preparing magnetic multicomponent catalysts via a bio-inspired assembly for heterogeneous reactions

Abstract: A facile synthetic approach for preparing magnetic porous catalysts, from various inorganic compounds loaded by a pyrogallic acid (PG) assisted layer-by-layer (LbL) coating.

Cited by 5 publications

References 48 publications

Polydopamine Surface Chemistry: A Decade of Discovery

Polydopamine Surface Chemistry: A Decade of Discovery

Catalytic Approaches to Multicomponent Reactions: A Critical Review and Perspectives on the Roles of Catalysis

Palladium and Copper: Advantageous Nanocatalysts for Multi-Step Transformations

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