1
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Wei L, Xiao X, Cai M. Recyclable gold(I)-catalyzed heterocyclization of ynamides with benzyl or indolyl azides towards 2-aminoindoles or 3-amino-β-carbolines. Org Biomol Chem 2023; 21:8757-8766. [PMID: 37877426 DOI: 10.1039/d3ob01555f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2023]
Abstract
A highly efficient heterogeneous gold(I)-catalyzed heterocyclization of ynamides with benzyl or indolyl azides has been achieved in 1,2-dichloroethane under mild conditions via a heterogenized α-imino gold carbene intermediate using 5 mol% of SBA-15-anchored strongly hindered NHC-gold(I) complex [IPr-SBA-15-AuNTf2] as the catalyst, delivering a wide range of valuable 2-aminoindoles or 3-amino-β-carbolines in mostly good to excellent yields with high regioselectivity. Furthermore, the new heterogenized NHC-gold(I) complex displays the same catalytic activity as IPrAuNTf2 and is facile to recover by centrifugation of the reaction mixture and can be reused at least seven times without any appreciable drop in its catalytic activity.
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Affiliation(s)
- Li Wei
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China.
| | - Xiaoqiang Xiao
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China.
| | - Mingzhong Cai
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China.
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2
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Improved Light Hydrocarbon, Furans, and BTEX Production from the Catalytic Assisted Pyrolysis of Agave salmiana Bagasse over Silica Mesoporous Catalysts. Catalysts 2023. [DOI: 10.3390/catal13030548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023] Open
Abstract
The pyrolysis of the biomass Agave salmiana bagasse (10 K/min, ambient to 700 °C) was investigated in the absence and presence of Aerosil and MCM-41 catalysts. MCM-41 was synthetized using a typical hydrothermal method and characterized with XRD, SAXS, SEM, TEM, and nitrogen physisorption to confirm the presence of unidimensional 3.4 nm diameter pores. Pyrolysis products were monitored online with mass spectrometry (MS), analyzing the production of 29 different compounds, clustered in several groups, namely, olefins (ethene, 2-butene, 1,3-butadiene), oxygenated compounds (methanol, 2-methylbutanol, acetic acid), furan derivatives (furan, furfural, 2-methylfurane), and aromatic compounds (BTEX). Complete decomposition of the cellulose and hemicellulose content of the biomass was observed at temperatures below 400 °C. Lignin decomposition was completed by 550 °C. Catalyst-assisted pyrolysis showed reduced acetic acid and methanol formation with Aerosil and MCM-41. The use of Aerosil does not affect the overall production of olefins, yet increases benzene yield, while reducing the production of phenol, furan, and furan derivatives. With MCM-41, there is increased production of olefins, furan, furan derivatives, cyclohexanone and BTEX, yet phenol production is decreased. At temperatures below 400 °C, the product formation pattern is comparable to non-catalytic pyrolysis.
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3
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Luo C, Cai M, Zhao R, Huang B. An efficient and practical synthesis of functionalized pyridines via recyclable copper-catalyzed three-component tandem cyclization. SYNTHETIC COMMUN 2023. [DOI: 10.1080/00397911.2022.2156296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Chengkai Luo
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, China
| | - Mingzhong Cai
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, China
| | - Ruonan Zhao
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, China
| | - Bin Huang
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, China
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4
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Recyclable Cu(I)-catalyzed cascade cyclization between o-haloanilides and primary amines towards 1,2-disubstituted benzimidazoles. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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5
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Recyclable gold(I)-catalyzed oxidative cyclization of 1,4-diyn-3-ols leading to highly substituted 3-formylfurans. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2022.122527] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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6
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Liu S, Hu W, Hao W, Xia J, Cai M. Regio- and Diastereoselective Construction of Functionalized Benzo[ b]oxepines and Benzo[ b]azepines via Recyclable Gold(I)-Catalyzed Cyclizations. J Org Chem 2022; 87:7239-7252. [PMID: 35593503 DOI: 10.1021/acs.joc.2c00446] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The heterogeneous gold-catalyzed cyclization of (o-alkynyl)phenoxy- or N-(o-alkynylphenyl)tolylsulfonamidoacrylates with alcohols has been developed by using an MCM-41-anchored diphenylphosphine-Au(I) complex [MCM-41-Ph2P-AuNTf2] as the catalyst under mild reaction conditions, yielding diverse functionalized benzo[b]oxepines or benzo[b]azepines with good to high yields and excellent diastereoselectivity. This heterogenized gold(I) catalyst exhibits a comparable activity to homogeneous Ph3PAuNTf2 and can be facilely recovered by a simple filtration of the reaction solution and reused more than seven times with almost a consistent catalytic efficiency.
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Affiliation(s)
- Siqi Liu
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Wenli Hu
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Wenyan Hao
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Jianhui Xia
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Mingzhong Cai
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
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7
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Liu S, Li J, Hu W, Huang B, Cai M. Recyclable gold(I)-catalyzed hydrohydrazidation of terminal alkynes towards keto-N-acylhydrazones. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2022.122411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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8
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Cai M, Xie G, Xu Z, Huang B. Recyclable palladium-catalyzed Suzuki coupling of aromatic triazine esters: A practical one-pot synthesis of aryl ketones from aromatic acids. SYNTHETIC COMMUN 2022. [DOI: 10.1080/00397911.2022.2070766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Mingzhong Cai
- College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang, China
| | - Gang Xie
- College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang, China
| | - Zhaotao Xu
- College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang, China
| | - Bin Huang
- College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang, China
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9
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Abdurrashid H, Merican ZMA, Musa SG. Recent advances in catalytic oxidative desulfurization of fuel oil – A review. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.05.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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10
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11
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Vassilina G, Umbetkaliyeva K, Abdrassilova A, Vassilina T, Zakirov Z. The mesoporous aluminosilicate application as support for bifunctional catalysts for n-hexadecane hydroconversion. OPEN CHEM 2022. [DOI: 10.1515/chem-2022-0134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Mesoporous aluminosilicate (MAS) and bifunctional catalysts based on it were synthesized. The MAS synthesis is based on the method of copolycondensation of silicon and aluminum sources in the presence of alcohol. Hexadecylamine was used as a template for the formation of a porous structure. The catalysts were characterized by X-ray diffraction, Brunauer–Emmett–Teller, temperature-programmed desorption of ammonia, hydrogen-temperature programmed reduction, Fourier transform infra-red spectroscopy, and diffuse reflectance infrared Fourier transform spectroscopic methods. The catalytic activity of Ni/MAS-H-bentonite and Mo/MAS-H-bentonite was investigated during the hydroconversion of n-hexadecane. It has been shown that a sample promoted with molybdenum and nickel based on MAS has the high activity and selectivity in the process of n-hexadecane hydroisomerization under optimal conditions (320°C, atm pressure).
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Affiliation(s)
- Gulzira Vassilina
- Department of Chemistry and Chemical Technology, Al–Farabi Kazakh National University , Almaty 050059 , Kazakhstan
- Laboratory of Petrochemical Synthesis, Scientific Research Institute for New Chemical Technologies and Materials , Almaty 050012 , Kazakhstan
| | - Kamilla Umbetkaliyeva
- Department of Chemistry and Chemical Technology, Al–Farabi Kazakh National University , Almaty 050059 , Kazakhstan
- Laboratory of Petrochemical Synthesis, Scientific Research Institute for New Chemical Technologies and Materials , Almaty 050012 , Kazakhstan
| | - Albina Abdrassilova
- Department of Chemistry and Chemical Technology, Al–Farabi Kazakh National University , Almaty 050059 , Kazakhstan
- Laboratory of Petrochemical Synthesis, Scientific Research Institute for New Chemical Technologies and Materials , Almaty 050012 , Kazakhstan
| | - Tursunay Vassilina
- Laboratory of Petrochemical Synthesis, Scientific Research Institute for New Chemical Technologies and Materials , Almaty 050012 , Kazakhstan
- Faculty of Agrobiology, Kazakh National Agrarian Research University , Almaty 050010 , Kazakhstan
| | - Zhassulan Zakirov
- Department of Chemistry and Chemical Technology, Al–Farabi Kazakh National University , Almaty 050059 , Kazakhstan
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12
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Zaera F. Designing Sites in Heterogeneous Catalysis: Are We Reaching Selectivities Competitive With Those of Homogeneous Catalysts? Chem Rev 2022; 122:8594-8757. [PMID: 35240777 DOI: 10.1021/acs.chemrev.1c00905] [Citation(s) in RCA: 69] [Impact Index Per Article: 34.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A critical review of different prominent nanotechnologies adapted to catalysis is provided, with focus on how they contribute to the improvement of selectivity in heterogeneous catalysis. Ways to modify catalytic sites range from the use of the reversible or irreversible adsorption of molecular modifiers to the immobilization or tethering of homogeneous catalysts and the development of well-defined catalytic sites on solid surfaces. The latter covers methods for the dispersion of single-atom sites within solid supports as well as the use of complex nanostructures, and it includes the post-modification of materials via processes such as silylation and atomic layer deposition. All these methodologies exhibit both advantages and limitations, but all offer new avenues for the design of catalysts for specific applications. Because of the high cost of most nanotechnologies and the fact that the resulting materials may exhibit limited thermal or chemical stability, they may be best aimed at improving the selective synthesis of high value-added chemicals, to be incorporated in organic synthesis schemes, but other applications are being explored as well to address problems in energy production, for instance, and to design greener chemical processes. The details of each of these approaches are discussed, and representative examples are provided. We conclude with some general remarks on the future of this field.
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Affiliation(s)
- Francisco Zaera
- Department of Chemistry and UCR Center for Catalysis, University of California, Riverside, California 92521, United States
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13
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Cai M, Ye Q, Huang W, Hao W. Recyclable copper-catalyzed cyclization of o-haloanilides and metal sulfides: An efficient and practical access to substituted benzothiazoles. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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14
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Hu W, Niu B, Xiao X, Cai M. Recyclable Gold Catalyst for the Stereoselective Thioallylation of Alkynes. J Org Chem 2021; 86:13598-13609. [PMID: 34549962 DOI: 10.1021/acs.joc.1c01641] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The heterogeneous gold(I)-catalyzed stereoselective thioallylation of electron-deficient alkynes with allyl sulfides has been achieved by using an MCM-41-immobilized sterically demanding NHC-gold(I) complex [MCM-41-IPrAuNTf2] as the catalyst under mild conditions, delivering a wide variety of stereodefined tri- and tetrasubstituted functionalized vinyl sulfides in good to excellent yields. The new heterogeneous MCM-41-IPrAuNTf2 catalyst exhibits an activity comparable to a homogeneous IPrAuNTf2 complex and can be recovered via a simple filtration process and reused for at least seven consecutive cycles without any apparent loss of its catalytic activity and selectivity.
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Affiliation(s)
- Wenli Hu
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Bingbo Niu
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Xiaoqiang Xiao
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Mingzhong Cai
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
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15
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Kouznetsova T, Sauka J, Ivanets A. Template synthesis and gas adsorption properties of ordered mesoporous aluminosilicates. APPLIED NANOSCIENCE 2021. [DOI: 10.1007/s13204-021-01871-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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16
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Hu W, Huang B, Niu B, Cai M. Recyclable heterogeneous gold(I)-catalyzed oxidation of internal acylalkynes: Practical access to vicinal tricarbonyls. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.152953] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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17
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Huang J, Xi J, Chen W, Bai Z. Graphene-derived Materials for Metal-free Carbocatalysis of Organic Reactions. ACTA CHIMICA SINICA 2021. [DOI: 10.6023/a21070340] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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18
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Du Y, Huang B, Zeng J, Cai M. Recyclable heterogeneous gold(I)-catalyzed oxidative ring expansion of alkynyl quinols: a practical access to tropone and its analogues. Dalton Trans 2021; 50:6488-6499. [PMID: 33903864 DOI: 10.1039/d1dt00988e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The heterogeneous gold(i)-catalyzed oxidative ring expansion of alkynyl quinols has been achieved by using a benzyldiphenylphosphine-modified MCM-41-immobilized gold(i) complex [MCM-41-BnPh2P-AuNTf2] as the catalyst and 8-methylquinoline N-oxide as the oxidant under mild reaction conditions, yielding a variety of functionalized tropone derivatives in good to excellent yields. Extension of this methodology allows for facile construction of other seven- or six-membered ring systems including dibenzotropones, dibenzooxepines, phenanthrenes, and quinolin-2(1H)-ones. This new heterogeneous gold(i) complex can be readily recovered through a simple filtration process and recycled at least eight times without any apparent decrease in catalytic efficiency.
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Affiliation(s)
- Yingying Du
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China.
| | - Bin Huang
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China.
| | - Jiajun Zeng
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China.
| | - Mingzhong Cai
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China.
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19
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MCM-41-supported palladium (II) α-diimine complex: A recyclable catalyst for Suzuki-Miyaura coupling reaction. RESULTS IN CHEMISTRY 2021. [DOI: 10.1016/j.rechem.2021.100189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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20
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Marquez-Medina MD, Luque R, Balu AM, Ivars-Barceló F, Carrillo-Carrión C. Metal doping of porous materials via a post-synthetic mechano-chemical approach: a general route to design low-loaded versatile catalytic systems. Catal Sci Technol 2021. [DOI: 10.1039/d0cy01568g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Mesoporous silica materials doped with metals (Fe/Zr) presented superior catalytic performance for oxidations. The use of MOFs as metal sources improved the metal distribution, and allowed a fine-tuning of Brønsted–Lewis acidity depending on the MOF.
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Affiliation(s)
| | - Rafael Luque
- Department of Organic Chemistry
- University of Córdoba
- Cordoba
- Spain
- Peoples Friendship University of Russia (RUDN University)
| | - Alina M. Balu
- Department of Organic Chemistry
- University of Córdoba
- Cordoba
- Spain
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21
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Ordered mesoporous molecular sieves as active catalyts for the synthesis of 1,4-dihydropyridine derivatives. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.06.046] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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Eddine NJ, Jennen F, Kacem Y, Kraiem J. Iron (III) chloride hexahydrate as a highly efficient catalyst for acetylation of protic nucleophiles with acetic anhydride under solvent-free conditions. CURRENT ORGANOCATALYSIS 2020. [DOI: 10.2174/2213337207999200731184638] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Acetylation of protic nucleophiles is used to protect these functional groups. Most of the methods
described in the literature use solvents, one equivalent or more of toxic bases or expensive and toxic catalysts. Therefore,
new methodologies are still in demand, above all, greener and more economical procedures.
Objective:
An eco-efficient method developed for acetylation of alcohols, phenols, thiols, amines and carbohydrates, using acetic anhydride and a catalytic amount of the environmentally benign and inexpensive FeCl3.6H2O under solvent
free conditions.
Methods:
Acetylation of a variety of protic nucleophiles was performed using 0.2 mol % of FeCl3.6H2O as the catalyst,
and 1.2 equiv. as the acetylating agent at room temperature and under solvent free conditions.
Results:
Our procedure appears to be highly efficient and promoted rapid and quantitative acetylation under simple and
minimum manipulation. Chromatography or recrystallization were generally not necessary for the purification of products.
Conclusion:
This eco-friendly protocol appears to be potentially universally applicable in organic design to protect protic
nucleophiles and potentially scalable for industrial fields.
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Affiliation(s)
- Naoures Jamel Eddine
- Laboratoire de Développement Chimique, Galénique et Pharmacologique des Médicaments (LR12ES09), Université de Monastir, Faculté de Pharmacie de Monastir, Rue Avicenne, 5000, Monastir, Tunisia
| | - Fayçal Jennen
- Laboratoire de Développement Chimique, Galénique et Pharmacologique des Médicaments (LR12ES09), Université de Monastir, Faculté de Pharmacie de Monastir, Rue Avicenne, 5000, Monastir, Tunisia
| | - Yakdhane Kacem
- Laboratoire de Développement Chimique, Galénique et Pharmacologique des Médicaments (LR12ES09), Université de Monastir, Faculté de Pharmacie de Monastir, Rue Avicenne, 5000, Monastir, Tunisia
| | - Jamil Kraiem
- Laboratoire de Développement Chimique, Galénique et Pharmacologique des Médicaments (LR12ES09), Université de Monastir, Faculté de Pharmacie de Monastir, Rue Avicenne, 5000, Monastir, Tunisia
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23
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Zhou Z, Li J, Xu Z, Cai M. Recyclable heterogeneous palladium-catalyzed carbonylative Sonogashira coupling under CO gas-free conditions. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1762092] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Zebiao Zhou
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and Department of Chemistry, Jiangxi Normal University, Nanchang, China
| | - Jianying Li
- School of Biology and Environmental Engineering, Jingdezhen University, Jingdezhen, China
| | - Zhaotao Xu
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and Department of Chemistry, Jiangxi Normal University, Nanchang, China
| | - Mingzhong Cai
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and Department of Chemistry, Jiangxi Normal University, Nanchang, China
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24
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Du Y, Yao F, Zhang R, Cai M. A heterogeneous gold(I)-catalyzed regioselective hydration of propargyl acetates toward α-acyloxy methyl ketones. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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25
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Raoof JB, Bagheryan Z, Hashkavayi AB. Development of a DNA biosensor based on MCM41 modified screen-printed graphite electrode for the study of the short sequence of the p53 tumor suppressor gene in hybridization and its interaction with the flutamide drug using hemin as the electrochemical label. NEW J CHEM 2020. [DOI: 10.1039/c9nj04569d] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Electrochemical DNA biosensors are particularly attractive because of their high sensitivity, suitability and compatibility with miniaturization in nucleic acid technology.
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Affiliation(s)
- Jahan Bakhsh Raoof
- Electroanalytical Chemistry Research Laboratory
- Department of Analytical Chemistry
- Faculty of Chemistry
- University of Mazandaran
- Babolsar
| | - Zahra Bagheryan
- Electroanalytical Chemistry Research Laboratory
- Department of Analytical Chemistry
- Faculty of Chemistry
- University of Mazandaran
- Babolsar
| | - Ayemeh Bagheri Hashkavayi
- Electroanalytical Chemistry Research Laboratory
- Department of Analytical Chemistry
- Faculty of Chemistry
- University of Mazandaran
- Babolsar
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26
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Du Y, Yao F, Cai M. Highly para-selective C‒H alkylation of unactivated arenes with α-aryl-α-diazoesters catalyzed by gold(I) immobilized on MCM-41. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.1177/1747519819893878] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The heterogeneous gold(I)-catalyzed highly para-selective C(sp2)–H bond alkylation of benzene derivatives with α-aryl-α-diazoesters possessing electron-withdrawing substituents on the aryl rings are achieved. The reactions proceed under mild conditions in good to excellent yields by using an MCM-41-anchored diphenylphosphine gold(I) complex [MCM-41-PPh2-AuOTf] as a recyclable catalyst.
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Affiliation(s)
- Yingying Du
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education and Department of Chemistry, Jiangxi Normal University, Nanchang, P.R. China
| | - Fang Yao
- College of Chemical and Materials Engineering, Quzhou University, Quzhou, P.R. China
| | - Mingzhong Cai
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education and Department of Chemistry, Jiangxi Normal University, Nanchang, P.R. China
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27
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Zhao R, Liao Y, Yan T, Cai M. Practical one‐pot synthesis of 5‐alkynyl‐1,2,3‐triazoles via heterogeneous copper(I)‐catalyzed tandem three‐component click/alkynylation reaction. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5319] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Ruonan Zhao
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical EngineeringJiangxi Normal University Nanchang 330022 China
| | - Yang Liao
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical EngineeringJiangxi Normal University Nanchang 330022 China
| | - Tao Yan
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical EngineeringJiangxi Normal University Nanchang 330022 China
| | - Mingzhong Cai
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical EngineeringJiangxi Normal University Nanchang 330022 China
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28
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Yan N, You C, Cai M. A practical synthesis of quinazolinones via intermolecular cyclization between 2-halobenzamides and benzylamines catalyzed by copper(I) immobilized on MCM-41. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.07.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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29
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Parmar DK, Butani PM, Thumar NJ, Jasani PM, Padaliya RV, Sandhiya PR, Nakum HD, Khan MN, Makwana D. Oxy-functionalization of olefins with neat and heterogenized binuclear V(IV)O and Fe(II) complexes: Effect of steric hindrance on product selectivity and output in homogeneous and heterogeneous phase. MOLECULAR CATALYSIS 2019. [DOI: 10.1016/j.mcat.2019.110424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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30
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Xia J, Huang X, You S, Cai M. Heterogeneous copper‐catalyzed oxidative coupling of oxime acetates with sodium sulfinates: An efficient and practical synthesis of β‐keto sulfones. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jianhui Xia
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical EngineeringJiangxi Normal University Nanchang 330022 China
| | - Xue Huang
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical EngineeringJiangxi Normal University Nanchang 330022 China
| | - Shengyong You
- Institute of Applied ChemistryJiangxi Academy of Sciences Nanchang 330029 China
| | - Mingzhong Cai
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical EngineeringJiangxi Normal University Nanchang 330022 China
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31
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Niu B, Nie Q, Huang B, Cai M. Heterogeneous Gold(I)‐Catalyzed Oxidative Ring Expansion of 2‐Alkynyl‐1,2‐Dihydropyridines or ‐Quinolines Towards Functionalized Azepines or Benzazepines. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900512] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Bingbo Niu
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering Jiangxi Normal University Nanchang 330022 People's Republic of China
| | - Quan Nie
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering Jiangxi Normal University Nanchang 330022 People's Republic of China
| | - Bin Huang
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering Jiangxi Normal University Nanchang 330022 People's Republic of China
| | - Mingzhong Cai
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering Jiangxi Normal University Nanchang 330022 People's Republic of China
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32
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Huang W, Li J, Chen Q, Cai M. Highly stereoselective heterogeneous palladium-catalyzed transfer semihydrogenation of internal alkynes to access cis-alkenes. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.1177/1747519819855895] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A highly efficient heterogeneous palladium-catalyzed transfer semihydrogenation of internal alkynes was achieved in dimethylformamide at 145 ºC by using an MCM-41-immobilized bidentate nitrogen palladium(II) complex [MCM-41-2N-Pd(OAc)2] as catalyst and dimethylformamide/KOH as hydrogen source, yielding a variety of cis-alkenes in good to high yields with excellent stereoselectivity. This supported palladium catalyst can be easily recovered by filtration of the reaction solution and recycled up to seven times with almost consistent activity.
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Affiliation(s)
- Wencheng Huang
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and Department of Chemistry, Jiangxi Normal University, Nanchang, China
| | - Jianying Li
- Department of Biology and Chemical Engineering, Jingdezhen University, Jingdezhen, China
| | - Qiurong Chen
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and Department of Chemistry, Jiangxi Normal University, Nanchang, China
| | - Mingzhong Cai
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and Department of Chemistry, Jiangxi Normal University, Nanchang, China
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33
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Santana Vega M, Guerrero Martínez A, Cucinotta F. Facile Strategy for the Synthesis of Gold@Silica Hybrid Nanoparticles with Controlled Porosity and Janus Morphology. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E348. [PMID: 30832432 PMCID: PMC6473971 DOI: 10.3390/nano9030348] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 02/22/2019] [Accepted: 02/26/2019] [Indexed: 12/31/2022]
Abstract
Hybrid materials prepared by encapsulation of plasmonic nanoparticles in porous silica systems are of increasing interest due to their high chemical stability and applications in optics, catalysis and biological sensing. Particularly promising is the possibility of obtaining gold@silica nanoparticles (Au@SiO₂ NPs) with Janus morphology, as the induced anisotropy can be further exploited to achieve selectivity and directionality in physical interactions and chemical reactivity. However, current methods to realise such systems rely on the use of complex procedures based on binary solvent mixtures and varying concentrations of precursors and reaction conditions, with reproducibility limited to specific Au@SiO₂ NP types. Here, we report a simple one-pot protocol leading to controlled crystallinity, pore order, monodispersity, and position of gold nanoparticles (AuNPs) within mesoporous silica by the simple addition of a small amount of sodium silicate. Using a fully water-based strategy and constant content of synthetic precursors, cetyl trimethylammonium bromide (CTAB) and tetraethyl orthosilicate (TEOS), we prepared a series of four silica systems: (A) without added silicate, (B) with added silicate, (C) with AuNPs and without added silicate, and (D) with AuNPs and with added silicate. The obtained samples were characterised by transmission electron microscopy (TEM), small angle X-ray scattering (SAXS), and UV-visible spectroscopy, and kinetic studies were carried out by monitoring the growth of the silica samples at different stages of the reaction: 1, 10, 15, 30 and 120 min. The analysis shows that the addition of sodium silicate in system B induces slower MCM-41 nanoparticle (MCM-41 NP) growth, with consequent higher crystallinity and better-defined hexagonal columnar porosity than those in system A. When the synthesis was carried out in the presence of CTAB-capped AuNPs, two different outcomes were obtained: without added silicate, isotropic mesoporous silica with AuNPs located at the centre and radial pore order (C), whereas the addition of silicate produced Janus-type Au@SiO₂ NPs (D) in the form of MCM-41 and AuNPs positioned at the silica⁻water interface. Our method was nicely reproducible with gold nanospheres of different sizes (10, 30, and 68 nm diameter) and gold nanorods (55 × 19 nm), proving to be the simplest and most versatile method to date for the realisation of Janus-type systems based on MCM-41-coated plasmonic nanoparticles.
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Affiliation(s)
- Marina Santana Vega
- School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne NE1 7RU, UK.
| | - Andrés Guerrero Martínez
- Departamento de Química Física, Universidad Complutense de Madrid, Avenida Complutense s/n, 28040 Madrid, Spain.
| | - Fabio Cucinotta
- School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne NE1 7RU, UK.
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34
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Liao Y, Huang B, Huang X, Cai M. Heterogeneous Copper-Catalyzed Cascade Three-Component Reaction Towards Imidazo[1,2-a]pyridines: Efficient and Practical One-Pot Synthesis of Alpidem. ChemistrySelect 2019. [DOI: 10.1002/slct.201900128] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yang Liao
- Key Laboratory of Functional Small Organic Molecule; Ministry of Education and College of Chemistry & Chemical Engineering; Jiangxi Normal University; Nanchang 330022 China
| | - Bin Huang
- Key Laboratory of Functional Small Organic Molecule; Ministry of Education and College of Chemistry & Chemical Engineering; Jiangxi Normal University; Nanchang 330022 China
| | - Xue Huang
- Key Laboratory of Functional Small Organic Molecule; Ministry of Education and College of Chemistry & Chemical Engineering; Jiangxi Normal University; Nanchang 330022 China
| | - Mingzhong Cai
- Key Laboratory of Functional Small Organic Molecule; Ministry of Education and College of Chemistry & Chemical Engineering; Jiangxi Normal University; Nanchang 330022 China
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35
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Heterogeneous copper-catalyzed decarboxylative cyclization of 2-benzoylpyridines with α-amino acids leading to imidazo[1,5-a]pyridines. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2018.11.030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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36
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Gómez LD, Rodríguez-Páez J. Micro/nanoscale mesoporous Nb2O5 particles: Effect of synthesis conditions and doping with N, C, or S on their properties. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.nanoso.2018.11.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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37
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Janiszewska E, Held A, Nowińska K, Kowalak S. One-pot synthesis of vanadium-containing silica SBA-3 materials and their catalytic activity for propene oxidation. RSC Adv 2019; 9:4671-4681. [PMID: 35514626 PMCID: PMC9060587 DOI: 10.1039/c8ra10171j] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 01/30/2019] [Indexed: 11/28/2022] Open
Abstract
V-containing silica SBA-3 mesoporous catalysts were prepared by means of one-pot hydrothermal procedure with NH4VO3 or VOSO4 as vanadium precursors under various acidic medium of the reaction mixture (pH < 1, 2.2 or 3.1). The combined spectral techniques (DR UV-vis, FTIR, EPR) as well H2-TPR allowed to determine the nature of vanadium species in the studied samples. A successful incorporation of vanadium into the structure of silica SBA-3 was attained for the samples with low V content (<1 wt%), whereas the V-rich samples (i.e. >5 wt%) exhibited the presence of isolated vanadium and also of polynuclear surface species. The resulting V-bearing samples contain the Brønsted and Lewis acidic centres evidenced by FTIR spectra of adsorbed pyridine and by catalytic activity for 2-propanol decomposition and cumene cracking. Ammonia TPD allowed to estimate the number and strength of acid sites in regards to the vanadium content. Propene oxidation with N2O revealed noticeable activity of the synthesised V-SBA-3 samples in epoxidation reaction. On the basis of TOF analysis indicating the activity of particular vanadium ions it seems that not all of the introduced V atoms take part in the formation of mild electrophilic oxygen species responsible for propene oxide formation. Efficient SBA-3 vanadosilicate catalysts for propene oxidation obtained for the first time by the one-pot synthesis.![]()
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Affiliation(s)
- Ewa Janiszewska
- Adam Mickiewicz University
- Faculty of Chemistry
- 61614 Poznan
- Poland
| | - Agnieszka Held
- Adam Mickiewicz University
- Faculty of Chemistry
- 61614 Poznan
- Poland
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38
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Ganji S, Bukya P, Liu ZW, Rao KSR, Burri DR. A carboxylic acid functionalized SBA-15 supported Pd nanocatalyst: an efficient catalyst for hydrogenation of nitrobenzene to aniline in water. NEW J CHEM 2019. [DOI: 10.1039/c9nj01743g] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The catalytic performance of a PdNPs/SBA-COOH has been investigated for the first time in the selective hydrogenation of nitrobenzene with hydrous hydrazine at RT in water medium.
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Affiliation(s)
- Saidulu Ganji
- Catalysis Laboratory
- Indian Institute of Chemical Technology
- Hyderabad-500607
- India
- Key Laboratory of Applied Surface and Colloid Chemistry (MOE)
| | - Padma Bukya
- University Post Graduate College
- Osmania University
- Secunderabad
- India
| | - Zhong-Wen Liu
- Key Laboratory of Applied Surface and Colloid Chemistry (MOE)
- School of Chemistry & Chemical Engineering
- Shaanxi Normal University
- Xi’an 710062
- China
| | | | - David Raju Burri
- Catalysis Laboratory
- Indian Institute of Chemical Technology
- Hyderabad-500607
- India
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39
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Hassan S, Mannaa MA, Ibrahim AA. Nano-sized mesoporous phosphated tin oxide as an efficient solid acid catalyst. RSC Adv 2019; 9:810-818. [PMID: 35517639 PMCID: PMC9059524 DOI: 10.1039/c8ra08962k] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 12/18/2018] [Indexed: 11/21/2022] Open
Abstract
Herein, we prepared a mesoporous tin oxide catalyst (mSnO2) activated with phosphate species by the adsorption of phosphate ions from a phosphoric acid solution onto tin oxyhydroxide (Sn(OH)4) surface.
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Affiliation(s)
- S. M. Hassan
- Chemistry Department
- Faculty of Science
- Mansoura University
- Mansoura
- Egypt
| | - M. A. Mannaa
- Chemistry Department
- Faculty of Science
- Mansoura University
- Mansoura
- Egypt
| | - Amr Awad Ibrahim
- Chemistry Department
- Faculty of Science
- Mansoura University
- Mansoura
- Egypt
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40
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Deka JR, Lee MH, Saikia D, Kao HM, Yang YC. Confinement of Cu nanoparticles in the nanocages of large pore SBA-16 functionalized with carboxylic acid: enhanced activity and improved durability for 4-nitrophenol reduction. Dalton Trans 2019; 48:8227-8237. [PMID: 31093624 DOI: 10.1039/c9dt00248k] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fabrication of a highly active mesoporous silica SBA-16 supported Cu nanocatalyst with superb durability for the reduction of 4-nitrophenol into 4-aminophenol.
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Affiliation(s)
- Juti Rani Deka
- Institute of Materials Science and Engineering
- National Taipei University of Technology
- Taipei 106
- Republic of China
| | - Mu-Hsin Lee
- Department of Chemistry
- National Central University
- Chung-Li
- Republic of China
| | - Diganta Saikia
- Department of Chemistry
- National Central University
- Chung-Li
- Republic of China
| | - Hsien-Ming Kao
- Department of Chemistry
- National Central University
- Chung-Li
- Republic of China
| | - Yung-Chin Yang
- Institute of Materials Science and Engineering
- National Taipei University of Technology
- Taipei 106
- Republic of China
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41
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Liu D, Nie Q, Zhang R, Cai M. Heterogeneous gold-catalyzed oxidative cross-coupling of propargylic acetates with arylboronic acids leading to (E)-α-arylenones. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2018.11.053] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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42
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Zhao R, Yan C, Jiang Y, Cai M. Efficient Heterogeneous Copper-Catalysed C–Se Coupling of Aryl Iodides with Symmetrical Diselenides towards Unsymmetrical Monoselenides. JOURNAL OF CHEMICAL RESEARCH 2018. [DOI: 10.3184/174751918x15409874473285] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A highly efficient heterogeneous copper(I)-catalysed C–Se coupling of aryl iodides with diaryl diselenides was achieved in dimethylformamide at 110 °C under neutral conditions by using a 10 mol% of bipyridine-functionalised MCM-41-supported copper(I) complex [bpy-MCM-41-CuI] as the catalyst and magnesium as the reductive reagent, yielding a variety of unsymmetrical diaryl selenides in good to excellent yields. This heterogeneous copper catalyst can be easily recovered by a simple filtration of the reaction solution and recycled at least seven times without significant loss of activity.
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Affiliation(s)
- Ruonan Zhao
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P.R. China
| | - Chenyu Yan
- Affiliated Middle School of Jiangxi Normal University, Nanchang 330022, P.R. China
| | - Yuanyuan Jiang
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P.R. China
| | - Mingzhong Cai
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P.R. China
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43
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A highly efficient heterogeneous palladium-catalyzed carbonylative annulation of 2-aminobenzamides with aryl iodides leading to quinazolinones. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.09.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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44
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Liu D, Nie Q, Zhang R, Cai M. Regiospecific Hydroamination of Unsymmetrical Electron-Rich and Electron-Poor Alkynes with Anilines Catalyzed by Gold(I) Immobilized in MCM-41. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800621] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Dayi Liu
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering; Jiangxi Normal University; Nanchang 330022 People's Republic of China
| | - Quan Nie
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering; Jiangxi Normal University; Nanchang 330022 People's Republic of China
| | - Rongli Zhang
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering; Jiangxi Normal University; Nanchang 330022 People's Republic of China
| | - Mingzhong Cai
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering; Jiangxi Normal University; Nanchang 330022 People's Republic of China
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45
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Deka JR, Budi CS, Lin CH, Saikia D, Yang YC, Kao HM. Carboxylic acid Functionalized Cage-Type Mesoporous Silica FDU-12 as Support for Controlled Synthesis of Platinum Nanoparticles and Their Catalytic Applications. Chemistry 2018; 24:13540-13548. [DOI: 10.1002/chem.201802146] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 07/02/2018] [Indexed: 01/12/2023]
Affiliation(s)
- Juti Rani Deka
- Institute of Materials Science and Engineering; National Taipei University of Technology; Taipei 106 Taiwan, R.O.C
| | - Canggih Setya Budi
- Department of Chemistry; National Central University; Chung-Li 32054 Taiwan, R.O.C
| | - Chien-Hua Lin
- Department of Chemistry; National Central University; Chung-Li 32054 Taiwan, R.O.C
| | - Diganta Saikia
- Department of Chemistry; National Central University; Chung-Li 32054 Taiwan, R.O.C
| | - Yung-Chin Yang
- Institute of Materials Science and Engineering; National Taipei University of Technology; Taipei 106 Taiwan, R.O.C
| | - Hsien-Ming Kao
- Department of Chemistry; National Central University; Chung-Li 32054 Taiwan, R.O.C
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46
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Janiszewska E, Zieliński M, Kot M, Kowalewski E, Śrębowata A. Aqueous-Phase Hydrodechlorination of Trichloroethylene on Ir Catalysts Supported on SBA-3 Materials. ChemCatChem 2018. [DOI: 10.1002/cctc.201800873] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ewa Janiszewska
- Faculty of Chemistry; Adam Mickiewicz University in Poznań; Umultowska 89B Poznań 61-614 Poland
| | - Michał Zieliński
- Faculty of Chemistry; Adam Mickiewicz University in Poznań; Umultowska 89B Poznań 61-614 Poland
| | - Monika Kot
- Faculty of Chemistry; Adam Mickiewicz University in Poznań; Umultowska 89B Poznań 61-614 Poland
| | - Emil Kowalewski
- Institute of Physical Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 Warszawa 01-224 Poland
| | - Anna Śrębowata
- Institute of Physical Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 Warszawa 01-224 Poland
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47
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Wei L, Yao F, Yi F, Cai M. Heterogeneous Gold(I)-Catalysed Annulation between 2-Aminopyridines and Propiolaldehydes Leading to 3-Acylimidazo[1,2-A]Pyridines. JOURNAL OF CHEMICAL RESEARCH 2018. [DOI: 10.3184/174751918x15314807595487] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The heterogeneous annulation between 2-aminopyridines and propiolaldehydes was achieved in CH2Cl2 at 25 °C in the presence of 3 mol% of MCM-41-immobilised phosphine gold(I) complex (MCM-41-PPh3-AuCl) and AgSbF6 under air, yielding a variety of 3-acylimidazo[1,2-a] pyridines in good yields. This heterogeneous gold(I) catalyst can be easily prepared by a simple procedure, recovered by filtration of the reaction solution and recycled up to seven times without significant loss of activity.
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Affiliation(s)
- Li Wei
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and Department of Chemistry, Jiangxi Normal University, Nanchang 330022, P.R. China
| | - Fang Yao
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and Department of Chemistry, Jiangxi Normal University, Nanchang 330022, P.R. China
- College of Chemical and Material Engineering, Quzhou University, Quzhou 324000, P.R. China
| | - Feiyan Yi
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and Department of Chemistry, Jiangxi Normal University, Nanchang 330022, P.R. China
| | - Mingzhong Cai
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and Department of Chemistry, Jiangxi Normal University, Nanchang 330022, P.R. China
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48
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Xu Z, Wang P, Chen Q, Cai M. A practical synthesis of unsymmetrical triarylphosphines by heterogeneous palladium(0)-catalyzed cross-coupling of aryl iodides with diphenylphosphine. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.04.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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49
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Manjunathan P, Marakatti VS, Chandra P, Kulal AB, Umbarkar SB, Ravishankar R, Shanbhag GV. Mesoporous tin oxide: An efficient catalyst with versatile applications in acid and oxidation catalysis. Catal Today 2018. [DOI: 10.1016/j.cattod.2017.10.009] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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50
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Devi R, Begum P, Bharali P, Deka RC. Comparative Study of Potassium Salt-Loaded MgAl Hydrotalcites for the Knoevenagel Condensation Reaction. ACS OMEGA 2018; 3:7086-7095. [PMID: 31458870 PMCID: PMC6644402 DOI: 10.1021/acsomega.8b00767] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Accepted: 06/07/2018] [Indexed: 06/10/2023]
Abstract
A series of potassium salt-loaded MgAl hydrotalcites were synthesized by wet impregnation of KNO3, KF, KOH, K2CO3, and KHCO3 salts over calcined MgAl hydrotalcite (Mg-Al = 3:1). The samples were characterized by X-ray diffraction, Fourier transform infrared, thermogravimetry-differential thermal analysis, scanning electron microscopy, and N2 absorption-desorption techniques to investigate their structural properties. The results showed formation of well-developed hydrotalcite phase and reconstruction of layered structure after impregnation. The prepared hydrotalcites possess mesopores and micropores having pore diameters in the range of 3.3-4.0 nm and Brunauer-Emmett-Teller surface area 90-207 m2 g-1. Base strengths calculated from Hammett indicator method were found increasing after loading salts, where KOH-loaded hydrotalcite showed base strength in the range of 12.7 < H- < 15, which was found to be the preferred catalyst. Subsequently, KOH loading was increased from 10 to 40% (w/w) and catalytic activity was evaluated for the Knoevenagel condensation reaction at room temperature. Density functional theory calculations show that among all of the oxygen atoms present in the hydrotalcite, the O atom attached to the K atom has the highest basic character. In this study, 10% KOH-loaded hydrotalcite showing 99% conversion and 100% selectivity was selected as the preferred catalyst in terms of base strength, stability, and catalytic efficiency.
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