Design and Synthesis of an Au@MIL‐53(NH<sub>2</sub>) Catalyst for a One‐Pot Aerobic Oxidation/Knoevenagel Condensation Reaction

The present review describes the state of the art of the use of metal organic framework (MOF)-encapsulated Au nanoparticles (NPs) as heterogeneous catalysts. The purpose is to show that catalysts with very good performance, frequently among the most active Au catalysts reported so far, can be obtained by incorporation of Au NPs inside MOFs. The available data indicate that the high catalytic activity of MOF-encapsulated Au NPs derives from (i) small particle size, (ii) high dispersion and homogeneous distribution inside MOFs crystals, (iii) stabilization of particle size by confinement of Au NPs inside MOFs cages, and (iv) the synergy that can arise by the combination of the activity of Au NPs and MOFs. After some introductory sections presenting general issues commenting about the relevance of Au catalysis, how to determine the internal versus external location of Au NPs, and evidence in support for catalyst stability, this mini review covers reactions using Au@MOFs as catalysts for oxidations, reductions, tandem processes, and photocatalysis with the emphasis in providing a comparison with the performance of other alternative Au-containing catalysts. In the final section, we summarize in our view the current achievements and which are the next targets in this area.

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Section: Tandem Reactionsmentioning

confidence: 99%

Metal Organic Frameworks as Versatile Hosts of Au Nanoparticles in Heterogeneous Catalysis

2017

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“…[19] Wang et al have synthesized a kind of heterogeneous catalysts in which uniform Au NPs with the size of 2.5 nm are dispersed on and in the materials of institut lavoisier (MIL)-53(NH 2 ) framework for cascade alcohol aerobic oxidation/Knoevenagel condensation reactions. [20] Ma et al have developed a pyridine functionalized COF (COF-TpPa-Py) supporting Pd species with high porosity and chemical durability for the tandem aerobic oxidation-Knoevenagel condensation reactions, which expands the design of COF-based catalysts. [21] These catalysts could be readily reused for several times without any active sites leaking.…”

Section: Doi: 101002/macp202100276mentioning

confidence: 99%

Hollow Microporous Organic Nanospheres with an Organocatalyst and a Metal Catalyst for Tandem Reactions

Zhang

Meng

et al. 2021

Macro Chemistry & Physics

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Amino‐functionalized hollow microporous organic nanospheres supported palladium catalysts (Pd@NH2‐H‐MONs) are prepared via the integration of hyper‐crosslinking induced self‐assembly strategy and a simple impregnation method by employing polylactide‐b‐poly(Boc‐aminoethyl acrylamide)‐b‐polystyrene (PLA‐b‐PBOCa‐b‐PS) triblock copolymers as precursors, in which Pd nanoparticles are uniformly anchored on NH2‐H‐MONs based on the strong interaction between Pd nanoparticles and amino functional groups. Combining with the unique micro/mesoporous structure derived from hyper‐crosslinking shell and the degradation of PLA block, the coexistence of free amine moieties produced by the deprotection of PBOCa block and well‐dispersed Pd nanoparticles endows the Pd@NH2‐H‐MONs with excellent catalysis activity for various cascade reactions. The present strategy opens a novel avenue for the multifunctional H‐MONs acting as a superior candidate for the heterogeneous tandem catalysis reactions.

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“…[10][11][12][13][14][15] For these reactions, the most difficult task is the development of a heterogenous catalyst with more than one catalytically active site which can catalyse different reactions simultaneously without interacting with each other. [16][17][18] Significant progress in the above mentioned reaction pathways was also achieved by Qi, 19 Miao, 20 Yan 21 and Gao. 15 O 2 or air is a very smart replacement for traditional stoichiometric oxidants such as activated DMSO, 22,23 hypervalent iodines, 23,24 chromium salts 25 and peroxides.…”

Section: Introductionmentioning

confidence: 98%

Successive oxidation–condensation reactions using a multifunctional gold-supported nanocomposite (Au/MgCe–HDO)

et al. 2022

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Design and Synthesis of an Au@MIL‐53(NH₂) Catalyst for a One‐Pot Aerobic Oxidation/Knoevenagel Condensation Reaction

Cited by 39 publications

References 70 publications

Metal Organic Frameworks as Versatile Hosts of Au Nanoparticles in Heterogeneous Catalysis

Metal Organic Frameworks as Versatile Hosts of Au Nanoparticles in Heterogeneous Catalysis

Hollow Microporous Organic Nanospheres with an Organocatalyst and a Metal Catalyst for Tandem Reactions

Successive oxidation–condensation reactions using a multifunctional gold-supported nanocomposite (Au/MgCe–HDO)

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Design and Synthesis of an Au@MIL‐53(NH2) Catalyst for a One‐Pot Aerobic Oxidation/Knoevenagel Condensation Reaction

Cited by 39 publications

References 70 publications

Metal Organic Frameworks as Versatile Hosts of Au Nanoparticles in Heterogeneous Catalysis

Metal Organic Frameworks as Versatile Hosts of Au Nanoparticles in Heterogeneous Catalysis

Hollow Microporous Organic Nanospheres with an Organocatalyst and a Metal Catalyst for Tandem Reactions

Successive oxidation–condensation reactions using a multifunctional gold-supported nanocomposite (Au/MgCe–HDO)

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Product

Resources

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Design and Synthesis of an Au@MIL‐53(NH₂) Catalyst for a One‐Pot Aerobic Oxidation/Knoevenagel Condensation Reaction