Metal-Organic Framework Fe3O(BPDC)3 as an efficient catalyst for the oxidative couling reaction of benzaldehyde and (E)-1-phenylethan-1-one O-acetyl oxime

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Son Doan Hoai ◽  
Tram Van Thi ◽  
Giao Dang Huynh ◽  
Nhan Le Thi Hong ◽  
Nam Phan Thanh Son
Keyword(s):  
Electron Microscopy ◽  
Oxidative Coupling ◽  
Metal Organic Framework ◽  
Coupling Reaction ◽  
Reaction Yield ◽  
Efficient Catalyst ◽  
Oxidative Coupling Reaction ◽  
Transmission Electron ◽  
Metal Organic ◽  
Organic Framework

A porous crytalline metal-organic framework Fe3O(BPDC)3 was synthesized, and its properties were characterized by various techniques, including X-ray powder diffraction (PXRD), Fourier transform infrared (FT-IR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and nitrogen physisorption measurements. The Fe3O(BPDC)3 was used as an efficient catalyst for the oxidative coupling reaction of benzaldehyde and (E)-1-phenylethan-1-one O-acetyl oxime to form 2,4,6-triphenylpyridine as desired product. The reaction could proceed readily, with more than 83 % reaction yield being achieved after 360 min at 140 oC in the presence of 10 mol% Fe3O(BPDC)3) catalyst and Di-tert-butyl peroxide as an oxidant. This Fe-MOF exhibited higher activity than other MOFs and traditional homogeneous catalysts in the oxidative coupling reaction. The transformation could only proceed to obtain main product in the presence of Fe3O(BPDC)3.

scholarly journals Morphology and adsorption of chromium ion on uranium 1,2,4,5-benzenetetracarboxylic acid metal organic framework (MOF)

2016 ◽  
Vol 70 (5) ◽  
pp. 565-572 ◽  
Author(s):  
Remy Vala ◽  
Donbebe Wankasi ◽  
Ezekiel Dikio
Keyword(s):  
Electron Microscopy ◽  
Porous Structure ◽  
Metal Organic Framework ◽  
Tetracarboxylic Acid ◽  
X Ray Diffraction ◽  
Kinetic Determination ◽  
Transmission Electron ◽  
Metal Organic ◽  
Organic Framework

In this paper, we report the synthesis of metal organic framework of uranium 1,2,4,5-benzene tetracarboxylic acid (U-H4btec MOF) by solvothermal method. The obtained MOF was characterized by Fourier transform infrared spectroscopy (FTIR), Scanning electron microscopy (SEM), Transmission electron microscopy (TEM), X-ray diffraction spectroscopy (XRD), Energy dispersive spectroscopy (EDS), thermogravimetric and differential thermogravimetric analysis (TGA/DTA). The morphology of the uranium 1,2,4,5-benzene tetracarboxylic acid MOF observed by SEM, revealed the presence of flaky porous structure. Adsorption of Cr3+ from aqueous solution onto the uranium 1,2,4,5-benzene tetracarboxylic acid MOF was systematically studied. Langmuir and Freundlich adsorption isotherms were applied to determine the adsorption capacity of the MOF to form a monolayer. Kinetic determination of the adsorption of Cr3+ suggested both chemisorption and physisorption probably due to the presence of carbonyl groups within the MOF and its porous structure.

scholarly journals Synthesis of diphenyl sulfide from iodobenzene and thiophenol using Metal-Organic Framework Cu2(NDC)2(DABCO) as an efficient heterogeneous catalyst

2020 ◽  
Vol 9 (4) ◽  
pp. 70-76
Author(s):  
Chi Nguyen Van ◽  
Giao Dang Huynh ◽  
Tung Nguyen Thanh ◽  
Anh Phan Nguyen Quynh ◽  
Nam Phan Thanh Son
Keyword(s):  
Electron Microscopy ◽  
Heterogeneous Catalyst ◽  
Metal Organic Framework ◽  
Coupling Reaction ◽  
Copper Nitrate ◽  
Major Product ◽  
Solid Catalyst ◽  
Diphenyl Sulfide ◽  
Metal Organic ◽  
Organic Framework

A metal-organic framework Cu2(NDC)2(DABCO) was synthesized from copper nitrate trihydrate, 2,6-Napthalenedicarboxylic acid (H2NDC), and 1,4-diazabicyclo[2.2.2]octane (DABCO) by solvothermal method. Its physicochemical properties were confirmed by several techniques such as X-ray powder diffraction (PXRD), Fourier transform infrared (FT-IR), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Cu2(NDC)2(DABCO) appeared as well-shaped crystals. To get diphenyl sulfide as desired product from the C-S cross coupling reaction of iodobenzene and thiophenol, the Cu2(NDC)2(DABCO) was used as heterogeneous catalyst  in the presence of LiO-tBu as base. The results showed that the transformation could proceed with more than 93% reaction conversion being obtained after 6 h at 120 oC when using 5 mol% Cu2(NDC)2(DABCO) catalyst in the presence of LiO-tBu. The solid catalyst could be recovered and reused five times without a significant degradation in catalytic activity. The coupling reaction could only proceed to achieve major product in the presence of the Cu2(NDC)2(DABCO catalyst.

scholarly journals Preparation of Co-porphyrin catalyst encapsulated in cyclodextrin-based metal-organic framework for coupling reaction

2021 ◽  
Vol 287 ◽  
pp. 02008
Author(s):  
A Nagai ◽  
T Hontake ◽  
Y Abe ◽  
W Michida ◽  
H. Inokawa ◽  
...  
Keyword(s):  
Catalyst Concentration ◽  
Metal Organic Framework ◽  
Coupling Reaction ◽  
Water Soluble ◽  
Nanoporous Structure ◽  
Oxidative Coupling Reaction ◽  
Crystallization Method ◽  
Metal Organic ◽  
Organometallic Catalyst ◽  
Organic Framework

Immobilization of organometallic catalyst were attempted by using cyclodextrin-based metal-organic framework (CD-MOF) with the characteristic nanoporous structure. Water-soluble Co(II)TCPP was prepared as an organometallic catalyst and introduced into hydrophilic nanopores in CD-MOF by co-crystallization method. In order to evaluate the catalytic properties of the obtained Co(II)TCPP/CDMOF, the oxidative coupling reaction of creosol was performed. At a catalyst concentration of 0.2 mol%, the catalytic activity of the heterogeneous Co(II)TCPP/CDMOF catalyst was almost the same as that of the homogeneous Co(II)TCPP catalyst. The conversion for Co(II)TCPP/CD-MOF catalyst reached 92% after 2-hour reaction.

Copper-catalyzed oxidative coupling of arylboronic acids with aryl carboxylic acids: Cu3(BTC)2 MOF as a sustainable catalyst to access aryl esters

2018 ◽  
Vol 5 (15) ◽  
pp. 2322-2331 ◽  
Author(s):  
Nainamalai Devarajan ◽  
Palaniswamy Suresh
Keyword(s):  
Carboxylic Acids ◽  
Oxidative Coupling ◽  
Metal Organic Framework ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Arylboronic Acids ◽  
Cross Coupling Reaction ◽  
Metal Organic ◽  
Commercially Important ◽  
Organic Framework

A straightforward and sustainable methodology for the synthesis of commercially important aryl esters via a C–O cross-coupling reaction was demonstrated using the Cu3(BTC)2 metal–organic framework.

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