A highly efficient heterogeneous aerobic alcohol oxidation catalyzed by immobilization of bipyridine copper(I) complex in MCM-41

Zhao, Hong; Chen, Qiurong; Li, Wei; Jiang, Yuanyuan; Cai, Mingzhong

doi:10.1016/j.tet.2015.09.054

Cited by 31 publications

(12 citation statements)

References 58 publications

(8 reference statements)

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“…The results indicate that surface area of MCM‐41 decreased significantly after catalyst modification. The decreased in surface area can be attributed to dispersion and deposition of catalyst particles into MCM‐41 pore channels …”

Section: Resultsmentioning

confidence: 99%

“…Nitrogen adsorption isotherms of the MCM‐41 and catalyst loaded MCM‐41 are shown in Figure . The isotherms have a typical type IV form with a type H4 hysteretic loop, typical of mesoporous materials based on to IUPAC classification . The plot of the pore‐size distribution (Figure inset) was determined from the desorption branch of the isotherm using the Barrett–Joyner–Halenda (BJH) method.…”

Section: Resultsmentioning

confidence: 99%

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Synthesis and characterization of a Mn‐Schiff base complex anchored on modified MCM‐41 as a novel and recyclable catalyst for oxidation of olefins

Zakeri

Rayati

Zarei

2018

Applied Organom Chemis

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Mn-Schiff base complex has been covalently attached to the surface of Mobil Composite Material No. 41 (MCM-41) using a 1,4-diisocyanatobutane (DIC-4) as a binder. The prepared heterogeneous catalyst was characterized by X-ray diffraction pattern (XRD), Brunauer-Emmett-Teller (BET), Fourier transform infrared (FT-IR) spectroscopy, X-ray fluorescence analysis (XRF), inductively coupled plasma (ICP) spectrometry and Transmission Electron Microscopy (TEM). The BET results indicated that the surface area and pore size of MCM-41 were decreased after modification. The obtained catalyst was used as a highly efficient, heterogeneous and recyclable catalyst for the oxidation of a wide range of alkenes with hydrogen peroxide (H 2 O 2 ) as a green oxidant.The effect of various parameters such as catalyst and imidazole (co-catalyst) concentration, tempreture, and reaction time on the conversion effecincy and selectivity of the reaction have been studied. The catalyst was used in five consecutive experiment without any loss of activity, confirming the success of the anchoring process and the catalyst stability.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Synthesis and characterization of a Mn‐Schiff base complex anchored on modified MCM‐41 as a novel and recyclable catalyst for oxidation of olefins

Zakeri

Rayati

Zarei

2018

Applied Organom Chemis

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“…However, these homogeneous copper catalysts are difficult to separate and recover from the reaction system. Heterogeneous copper catalysts have been used to overcome these issues and some heterogeneous copper catalysts have been reported, such as MCM‐41‐bpy‐CuI, CuTSPc@3D‐(N)GFs, PS/PANI@Cu(OSO 2 CF 3 ) 2 , Cu/MOF, PVA‐stabilized copper oxide nanoparticles, copper‐based coordination polymers, copper nanoparticles, and Cu/graphene . However, some catalytic systems still suffer from instability, the need for harsh reaction conditions, or low utilization of catalytically active metal.…”

Section: Introductionmentioning

confidence: 99%

Copper‐doped sulfonic acid‐functionalized MIL‐101(Cr) metal–organic framework for efficient aerobic oxidation reactions

Zhou

Zhao

et al. 2020

Applied Organom Chemis

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A series of Cr‐based metal–organic framework MIL‐101‐SO3H bearing sulfonic acid functional groups were utilized for the immobilization of catalytically active copper species via a post‐synthetic metalation method. The novel materials were fully characterized by scanning electron microscopy, X‐ray diffraction, energy dispersive X‐ray spectroscopy (EDX), X‐ray photoelectron spectroscopy (XPS), the Brunauer–Emmett–Teller method, and thermogravimetric analysis. XPS and the EDX element map both suggested that Cu2+ is coordinately bonded to the MIL‐101‐SO3H, which forms the MIL‐101‐SO3@Cu structure. The obtained copper‐doped MIL‐101‐SO3@Cu‐1, MIL‐101‐SO3@Cu‐2, and MIL‐101‐SO3@Cu‐3 catalysts were utilized in the selective oxidation of alcohols and epoxidation of olefins using molecular oxygen as an oxidant. Catalytic aerobic oxidation optimization showed that MIL‐101‐SO3@Cu‐1 is the optimal catalyst and it can be reused ten times without compromising the yield and selectivity.

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“…Especially, the environmental‐friendly oxidation with clean and inexpensive O 2 or H 2 O 2 used as oxidants has attracted much attention due to the broad industrial application prospects. The design of highly efficient catalysts is the key for the selective oxidation of alcohols by O 2 or H 2 O 2 …”

Section: Introductionmentioning

confidence: 99%

Selective Oxidation of Alcohols Catalyzed by Supported Nano‐Au Catalysts

Zhang

Wang

et al. 2019

ChemistrySelect

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A series of Cu‐containing trimetal mixed oxides supported nano‐Au catalysts were prepared and characterized by XRD, N2 sorption, elemental analysis and H2‐TPR. Then, their catalytic performance was firstly investigated in the selective oxidation of glycerol with 3% H2O2 or O2 as oxidants. It was found that both the elemental components of mixed oxides and the types of oxidant influenced remarkably the catalytic performance of the supported catalysts and the product distributions. Under the optimal reaction conditions, the highest yield of main product glyceric acid reached 66.5% over CuMnAl mixed oxide supported nano‐Au catalyst in the presence of O2. Moreover, the catalyst could be reused several times. In addition, the catalyst was further used in the selective oxidation of benzyl alcohol and cyclohexanol, and the best yield of benzaldehyde and cyclohexanone were 72.5% and 96.0%, respectively.

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A highly efficient heterogeneous aerobic alcohol oxidation catalyzed by immobilization of bipyridine copper(I) complex in MCM-41

Cited by 31 publications

References 58 publications

Synthesis and characterization of a Mn‐Schiff base complex anchored on modified MCM‐41 as a novel and recyclable catalyst for oxidation of olefins

Synthesis and characterization of a Mn‐Schiff base complex anchored on modified MCM‐41 as a novel and recyclable catalyst for oxidation of olefins

Copper‐doped sulfonic acid‐functionalized MIL‐101(Cr) metal–organic framework for efficient aerobic oxidation reactions

Selective Oxidation of Alcohols Catalyzed by Supported Nano‐Au Catalysts

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