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Melero M, Díaz U, Llabrés i Xamena FX. Thiophene-Based Covalent Triazine Frameworks as Visible-Light-Driven Heterogeneous Photocatalysts for the Oxidative Coupling of Amines. Molecules 2024; 29:1637. [PMID: 38611916 PMCID: PMC11013671 DOI: 10.3390/molecules29071637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 04/01/2024] [Accepted: 04/03/2024] [Indexed: 04/14/2024] Open
Abstract
This study reports on a metal-free Covalent Triazine Framework (CTF) incorporating bithiophene structural units (TP-CTF) with a semicrystalline structure as an efficient heterogeneous photocatalyst under visible light irradiation. The physico-chemical properties and composition of this material was confirmed via different characterization solid-state techniques, such as XRD, TGA, CO2 adsorption and FT-IR, NMR and UV-Vis spectroscopies. The compound was synthesized through a solvothermal process and was explored as a heterogeneous photocatalyst for the oxidative coupling of amines to imines under visible light irradiation. TP-CTF demonstrated outstanding photocatalytic activity, with high conversion rates and selectivity. Importantly, the material exhibited exceptional stability and recyclability, making it a strong candidate for sustainable and efficient imine synthesis. The low bandgap of TP-CTF enabled the efficient absorption of visible light, which is a notable advantage for visible-light-driven photocatalysis.
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Affiliation(s)
| | - Urbano Díaz
- Instituto de Tecnología Química, Universitat Politècnica de València, Agencia Estatal Consejo Superior de Investigaciones Científicas, 46022 Valencia, Spain;
| | - Francesc X. Llabrés i Xamena
- Instituto de Tecnología Química, Universitat Politècnica de València, Agencia Estatal Consejo Superior de Investigaciones Científicas, 46022 Valencia, Spain;
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2
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Yu X, Miao M, Huo S, Tang X, Ni L, Liu S, Wang L. Metal-Free Nitrogen-Doped Mesoporous Carbons for the Mild and Selective Synthesis of Pyrroles from Nitroarenes via Cascade Reaction. ACS APPLIED MATERIALS & INTERFACES 2024; 16:16363-16372. [PMID: 38502744 DOI: 10.1021/acsami.4c01621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
The cascade synthesis of pyrroles from nitroarenes is an attractive alternative strategy. However, metal catalysts and relatively high temperatures cover the existing reported catalytic systems for this strategy. The development of nonmetallic heterogeneous catalytic systems for the one-pot synthesis of pyrrole from nitroarenes under mild conditions is both worthwhile and challenging. Herein, we describe an exceptionally efficient method for the synthesis of N-substituted pyrroles by the reductive coupling of nitroarenes and diketones over heterogeneous metal-free catalysts under mild conditions. Nonmetallic NC-X catalysts with high activity were prepared from the pyrolysis of well-defined ligands via simple sacrificing hard template methods. Hydrazine hydrate, formic acid, and molecular hydrogen can all be used as reducing agents in the hydrogenation/Paal-Knorr reaction sequence to efficiently synthesize various N-substituted pyrroles, including drugs and bioactive molecules. The catalytic system was featured with good tolerance to sensitive functional groups and no side reactions such as dehalogenation and aromatics hydrogenation. Hammett correlation studies have shown that the electron-donating substituents are beneficial for the one-pot synthesis of N-substituted pyrroles. The results established that the outstanding performance of the catalyst is mainly attributed to the contribution of graphitic N in the catalyst as well as the promotion effect of the mesoporous structure on the reaction.
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Affiliation(s)
- Xiangzhu Yu
- College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, China
| | - Meng Miao
- College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, China
| | - Shuxiao Huo
- College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, China
| | - Xinyue Tang
- College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, China
| | - Ling Ni
- College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, China
| | - Shaowei Liu
- College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, China
| | - Lianyue Wang
- College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, China
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3
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Nai H, Hou J, Li J, Ma X, Yang Y, Qu K, Huang X, Li L. Accurate assembly of thiophene-bridged titanium-oxo clusters with photocatalytic amine oxidation activity. RSC Adv 2024; 14:7924-7931. [PMID: 38449818 PMCID: PMC10915587 DOI: 10.1039/d4ra00117f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 02/20/2024] [Indexed: 03/08/2024] Open
Abstract
Designing and synthesizing well-defined crystalline catalysts for the photocatalytic oxidative coupling of amines to imines remains a great challenge. In this work, a crystalline dumbbell-shaped titanium oxo cluster, [Ti10O6(Thdc)(Dmg)2(iPrO)22] (Ti10, Thdc = 2,5-thiophenedicarboxylic acid, Dmg = dimethylglyoxime, iPrOH = isopropanol), was constructed through a facile one-pot solvothermal strategy and treated as a catalyst for the photocatalytic oxidative coupling of amines. In this structure, Thdc serves as the horizontal bar, while the {Ti5Dmg} layers on each side act as the weight plates. The molecular structure, light absorption, and photoelectrochemical properties of Ti10 were systematically investigated. Remarkably, the inclusion of the Thdc ligand, with the assistance of the Dmg ligand, broadens the light absorption spectrum of Ti10, extending it into the visible range. Furthermore, the effective enhancement of charge transfer within the Ti10 was achieved with the successful incorporation of the Thdc ligand, as opposed to PTC-211, where terephthalic acid replaces the Thdc ligand, while maintaining consistency in other aspects of Ti10. Building on this foundation, Ti10 was employed as a heterogeneous molecular photocatalyst for the catalytic oxidative coupling reaction of benzylamine (BA), demonstrating very high conversion activity and selectivity. Our study illustrates that the inclusion of ligands derived from Thdc enhances the efficiency of charge transfer in functionalized photocatalysts, significantly influencing the performance of photocatalytic organic conversion.
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Affiliation(s)
- Haoran Nai
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University Liaocheng 252000 People's Republic of China
| | - Jinle Hou
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University Liaocheng 252000 People's Republic of China
| | - Jinyu Li
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University Liaocheng 252000 People's Republic of China
| | - Xiaoxi Ma
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University Liaocheng 252000 People's Republic of China
| | - Yujia Yang
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University Liaocheng 252000 People's Republic of China
| | - Konggang Qu
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University Liaocheng 252000 People's Republic of China
| | - Xianqiang Huang
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University Liaocheng 252000 People's Republic of China
| | - Lianzhi Li
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University Liaocheng 252000 People's Republic of China
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4
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Pal A, Das KM, Thakur A. Microwave-Assisted Synthesis of E-Aldimines, N-Heterocycles, and H 2 by Dehydrogenative Coupling of Benzyl Alcohol and Aniline Derivatives Using CoCl 2 as a Catalyst. J Org Chem 2023. [PMID: 37294694 DOI: 10.1021/acs.joc.3c00682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The acceptorless dehydrogenative coupling (ADC) between alcohols and amines to produce imines has been achieved mostly by employing precious-metal-based complexes or complexes of earth-abundant metal ions with sensitive and complicated ligand systems as catalysts mostly under harsh reaction conditions. Methodologies using readily available earth-abundant metal salts as catalysts without the requirement of ligand, oxidant, or any external additives are not explored. We report an unprecedented microwave-assisted CoCl2-catalyzed acceptorless dehydrogenative coupling of benzyl alcohol and amine for the synthesis of E-aldimines, N-heterocycles, and H2 under mild condition, without any complicated exogenous ligand template, oxidant, or other additives. This environmentally benign methodology exhibits broad substrate scope (43 including 7 new products) with fair functional-group tolerance on the aniline ring. Detection of metal-associated intermediate by gas chromatography (GC) and HRMS, H2 detection by GC, and kinetic isotope effect reveal the mechanism of this CoCl2-catalyzed reaction to be via ADC. Furthermore, kinetic experiments and Hammett analysis with variation in the nature of substituents over the aniline ring reveal the insight into the reaction mechanism with different substituents.
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Affiliation(s)
- Adwitiya Pal
- Department of Chemistry, Jadavpur University, Kolkata 700032, West Bengal, India
| | - Krishna Mohan Das
- Department of Chemistry, Jadavpur University, Kolkata 700032, West Bengal, India
| | - Arunabha Thakur
- Department of Chemistry, Jadavpur University, Kolkata 700032, West Bengal, India
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5
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Li X, Yuan Z, Liu Y, Yang H, Nie J, Wang G, Liu B. Nitrogen-Doped Carbon as a Highly Active Metal-Free Catalyst for the Selective Oxidative Dehydrogenation of N-Heterocycles. CHEMSUSCHEM 2022; 15:e202200753. [PMID: 35504842 DOI: 10.1002/cssc.202200753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 04/29/2022] [Indexed: 06/14/2023]
Abstract
N-heteroarenes represents one of the most important chemicals in pharmaceuticals and other bio-active molecules, which can be easily accessed from the oxidation of N-heterocycles over metal catalysts. Herein, the metal-free oxidative dehydrogenation of N-heterocycles into N-heteroarenes was developed using molecular oxygen as the terminal oxidant. The nitrogen-doped carbon materials were facilely prepared via the simple pyrolysis process using biomass (carboxymethyl cellulose sodium) and dicyandiamide as the carbon and nitrogen source, respectively, and they were discovered to be robust for the oxidative dehydrogenation of N-heterocycles into N-heteroarenes under mild conditions (80 °C under 1 bar O2 ) with water as the green solvent. Diverse N-heterocycles including 1,2,3,4-tetrahydroisoquinolines, indolines and 1,2,3,4-tetrahydroquinoxalines were smoothly converted into N-heteroarenes with high to excellent yields (76->99 %). Superoxide radical (⋅O2 - ) and hydroxyl radical (⋅OH) were probed as the reactive oxygen species for the oxidation of N-heterocycles into N-heteroarenes. More importantly, the nitrogen-doped carbon catalyst can be reused with a high stability. The method provides an environmentally friendly and economical route to access important N-hetero-aromatic commodities.
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Affiliation(s)
- Xun Li
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education, South-Central Minzu University, Wuhan, 430074, P. R. China
| | - Ziliang Yuan
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education, South-Central Minzu University, Wuhan, 430074, P. R. China
- Hubei Coal Conversion and New Carbon Materials Key Laboratory, College of Chemical Engineering and Technology, Wuhan University of Science and Technology, Wuhan, 430081, P. R. China
| | - Yi Liu
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
| | - Hanmin Yang
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education, South-Central Minzu University, Wuhan, 430074, P. R. China
| | - Jiabao Nie
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education, South-Central Minzu University, Wuhan, 430074, P. R. China
| | - Guanghui Wang
- Hubei Coal Conversion and New Carbon Materials Key Laboratory, College of Chemical Engineering and Technology, Wuhan University of Science and Technology, Wuhan, 430081, P. R. China
| | - Bing Liu
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education, South-Central Minzu University, Wuhan, 430074, P. R. China
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6
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More GS, Kushwaha N, Bal R, Srivastava R. Thermal and photocatalytic cascade one-pot synthesis of secondary amine using multifunctional Pd decorated MOF-derived CeO2. J Colloid Interface Sci 2022; 619:14-27. [DOI: 10.1016/j.jcis.2022.03.093] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 03/21/2022] [Accepted: 03/21/2022] [Indexed: 02/07/2023]
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7
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Zhang W, Jing P, Du J, Wu S, Yan W, Liu G. Interfacial-interaction-induced fabrication of biomass-derived porous carbon with enhanced intrinsic active sites. CHINESE JOURNAL OF CATALYSIS 2022. [DOI: 10.1016/s1872-2067(21)64031-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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8
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An H, Luo H, Xu T, Chang S, Chen Y, Zhu Q, Huang Y, Tan H, Li YG. Visible-Light-Driven Oxidation of Amines to Imines in Air Catalyzed by Polyoxometalate-Tris(bipyridine)ruthenium Hybrid Compounds. Inorg Chem 2022; 61:10442-10453. [PMID: 35758283 DOI: 10.1021/acs.inorgchem.2c01243] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The development of visible-light photocatalysts for the selective oxidative coupling of amines to imines is an area of great interest. Herein, four hybrid compounds based on polyoxometalate anions and tris(bipyridine)ruthenium cations, Ru(bpy)3[M6O19] (M = Mo, W) 1-2, [Ru(bpy)3]2[Mo8O26] 3, [Ru(bpy)3]2[W10O32] 4, are prepared and characterized by X-ray diffraction (single-crystal and powder), elemental analysis, energy-dispersive X-ray spectroscopy (EDS) analysis, infrared (IR) spectroscopy, and solid diffuse reflective spectroscopy. Single-crystal structural analysis indicates that polyoxometalate anions and tris(bipyridine)ruthenium cations interact with each other through extensive hydrogen bonds in these compounds. These hybrid species with strong visible-light-harvesting abilities and suitable photocatalytic energy potentials show excellent photocatalytic activity and selectivity for the oxidation of amines to imines at room temperature in air as an oxidant. Among them, compound 1 with the [Mo6O19]2- anion has the highest catalytic activity, which can swiftly convert >99.0% of benzylamine into N-benzylidenebenzylamine with a selectivity of 98.0% in 25 min illumination by a 10 W 445 nm light-emitting diode (LED). Its turnover frequency reaches 392 h-1, which is not only better than the homogeneous catalyst [Ru(bpy)3]Cl2 but also much superior to those achieved over most of reported heterogeneous catalysts. Moreover, it shows a wide generality for various aromatic amines, accompanied by the advantages of good recyclability and stability. The photocatalytic oxidation mechanism of amines to the corresponding imines over polyoxometalate-based hybrid compounds was fully investigated.
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Affiliation(s)
- Haiyan An
- School of Chemical Engineering, Dalian University of Technology, Dalian 116023, P. R. China
| | - Huiyun Luo
- School of Chemical Engineering, Dalian University of Technology, Dalian 116023, P. R. China
| | - Tieqi Xu
- School of Chemical Engineering, Dalian University of Technology, Dalian 116023, P. R. China
| | - Shenzhen Chang
- School of Chemical Engineering, Dalian University of Technology, Dalian 116023, P. R. China
| | - Yanhong Chen
- School of Chemical Engineering, Dalian University of Technology, Dalian 116023, P. R. China
| | - Qingshan Zhu
- School of Chemical Engineering, Dalian University of Technology, Dalian 116023, P. R. China
| | - Yaohui Huang
- School of Chemical Engineering, Dalian University of Technology, Dalian 116023, P. R. China
| | - Huaqiao Tan
- Key Laboratory of Polyoxometalate Science of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Yang-Guang Li
- Key Laboratory of Polyoxometalate Science of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
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9
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Li H, Chen W, Yuan Z, Jin Y, Zhao Y, Ma P, Niu J, Wang J. Controlled Assembly of Ru-Containing Polyoxometalates for Photocatalytic Activity of the Primary Amine Coupling Reaction. Inorg Chem 2022; 61:9935-9945. [PMID: 35711090 DOI: 10.1021/acs.inorgchem.2c00718] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Three Ru-induced structural interconversion polyoxometalates (POMs), Na13H5[Ru4(H2O)2(Cl)2(WO2)4(AsW9O33)4]·43H2O (1), K5Na9H8[Ru2(WO2)4(AsW9O33)4]·50H2O (2), and KNa13H14[(WO2)4(AsW9O33)4]·34H2O (3), were successfully synthesized and thoroughly characterized. Interconversion of structures was accomplished by changing the number of active sites for compounds 1-3. All three compounds contain one {As4W40O140} unit, showing similar structural characteristics except for the active center number (Ru). Interestingly, compound 1 [turnover number (TON)= 486; turnover frequency (TOF)= 20 h-1] showed highly efficient photocatalysis in achieving oxidative coupling of primary amines. Compound 2 (TON = 406, TOF = 17 h-1) was also found to promote the oxidative coupling with relatively poor efficiency; however, compound 3 (TON = 178; TOF = 7.4 h-1) had no obvious contribution to the coupling reaction system, and a chain of evidence indicates that the catalytic performances are strongly dependent on element contents of active sites. Furthermore, the Ru-containing POM-based photocatalysts are conveniently recyclable and reusable during the photocatalytic processes. This study demonstrates the possibility of tuning the catalytic efficiency and stability of POM-based photocatalysts by well designing and controlling their structures. The possible reaction mechanism for the photocatalysis synthesis of imine product is also proposed based on experimental studies.
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Affiliation(s)
- Huafeng Li
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, P. R. China
| | - Wenjing Chen
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, P. R. China
| | - Zelong Yuan
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, P. R. China
| | - Yuzhen Jin
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, P. R. China
| | - Yujie Zhao
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, P. R. China
| | - Pengtao Ma
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, P. R. China
| | - Jingyang Niu
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, P. R. China
| | - Jingping Wang
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, P. R. China
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10
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Photocatalytic selective amines oxidation coupled with H2O2 production over hyper-cross-linked polymers. J Colloid Interface Sci 2022; 616:1-11. [DOI: 10.1016/j.jcis.2022.02.055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 01/25/2022] [Accepted: 02/12/2022] [Indexed: 12/27/2022]
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11
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Shang S, Li Y, Lv Y, DAI WEN. Metal‐free Heterogeneous Catalytic Aromatization of N‐Heterocycles and Hydrocarbons by Carbocatalyst. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Sensen Shang
- Chinese Academy of Sciences Dalian Institute of Chemical Physics Fine Chemicals CHINA
| | - Yingguang Li
- Chinese Academy of Sciences Dalian Institute of Chemical Physics Fine Chemicals CHINA
| | - Ying Lv
- Chinese Academy of Sciences Dalian Institute of Chemical Physics Fine Chemicals CHINA
| | - WEN DAI
- Chinese Academy of Sciences Dalian Institute of Chemical Physics Fine Chemicals 457 Zhongshan Road 116023 Dalian CHINA
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12
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Ma Z, Liu S, Tang N, Song T, Motokura K, Shen Z, Yang Y. Coexistence of Fe Nanoclusters Boosting Fe Single Atoms to Generate Singlet Oxygen for Efficient Aerobic Oxidation of Primary Amines to Imines. ACS Catal 2022. [DOI: 10.1021/acscatal.1c04467] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Zhiming Ma
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shiqiang Liu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Nanfang Tang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Tao Song
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
- Shandong Energy Institute, Qingdao 266101, China
- Qingdao New Energy Shandong Laboratory, Qingdao 266101, China
| | - Ken Motokura
- Department of Chemistry and Life Science, Yokohama National University, Yokohama 240-8501, Japan
| | - Zhemin Shen
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yong Yang
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
- Shandong Energy Institute, Qingdao 266101, China
- Qingdao New Energy Shandong Laboratory, Qingdao 266101, China
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13
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Taylor CM, Kilah NL. Synthesis of [2+2] Schiff base macrocycles by a solvent templating strategy and halogen bonding directed assembly. J INCL PHENOM MACRO 2022. [DOI: 10.1007/s10847-022-01137-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AbstractSchiff base imine condensations are a useful tool for macrocycle synthesis and applications within supramolecular chemistry. Here we address the mixtures of products that can arise from template free synthesis using dicarbonylheterocycles and diamines, and look to develop metal-free template methods for selective macrocycle formation. A range of alkyl α,ω-diamines were combined with phenanthroline and pyridine heterocyclic dicarbaldehydes under standard literature conditions. The reaction conditions were modified to demonstrate a relationship between choice of solvent and product equilibria. It was observed that benzene and toluene could shift a mixture of products and unreacted starting materials to form predominantly one imine product for a number of systems. Once the macrocyclic products had been characterized in selected solvents, iodinated halogen bonding guest molecules were added to direct macrocycle assemblies using non-covalent interactions. Studies to investigate host – guest suitability and halogen bond interactions were conducted, and it was found that tetraiodoethylene had an influence on the formation of a phenanthroline based macrocycle. Proof of concept experiments were performed to show the influence of the guest molecule, tetraiodoethylene, on the macrocyclic products formed under competitive dynamic combinatorial chemistry conditions.
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14
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Yadav S, Pal S, Pal NK, Din Reshi NU, Pal S, Bera JK. Switchable activity of a Ru catalyst bearing an annulated mesoionic carbene ligand for oxidation of primary amines. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Suman Yadav
- Department of Chemistry and Center for Environmental Science and Engineering Indian Institute of Technology Kanpur Kanpur India
| | - Saikat Pal
- Department of Chemistry and Center for Environmental Science and Engineering Indian Institute of Technology Kanpur Kanpur India
| | - Nilay Kumar Pal
- Department of Chemistry and Center for Environmental Science and Engineering Indian Institute of Technology Kanpur Kanpur India
| | - Noor U Din Reshi
- Department of Chemistry and Center for Environmental Science and Engineering Indian Institute of Technology Kanpur Kanpur India
| | - Sourav Pal
- Department of Chemistry and Center for Environmental Science and Engineering Indian Institute of Technology Kanpur Kanpur India
| | - Jitendra K. Bera
- Department of Chemistry and Center for Environmental Science and Engineering Indian Institute of Technology Kanpur Kanpur India
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15
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Chen W, Li H, Song J, Zhao Y, Ma P, Niu J, Wang J. Binuclear Ru(III)-Containing Polyoxometalate with Efficient Photocatalytic Activity for Oxidative Coupling of Amines to Imines. Inorg Chem 2022; 61:2076-2085. [PMID: 35025489 DOI: 10.1021/acs.inorgchem.1c03282] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A novel binuclear ruthenium-based polyoxometalate, K6H[{Ru2Cl(H2O)(CH3COO)2}{WO(H2O)}2(PW9O34)2]·14H2O (1), was successfully synthesized by the conventional hydrothermal method. Compound 1 was well-characterized by single-crystal X-ray diffraction, X-ray powder diffraction (PXRD), infrared (IR) spectroscopy, X-ray photoelectron spectroscopy (XPS), electrospray ionization-mass spectrometry (ESI-MS), thermogravimetric analyses (TGA), and elemental analysis. The structural unit of compound 1 contains two [A-α-PW9O34]9- building blocks at the upper and lower positions connected by two W atoms and two Ru atoms, where the W atoms and Ru atoms are arranged in a trapezoidal arrangement and the Ru atoms are bridged by acetic acid. Furthermore, compound 1 features characteristic absorption bands in the visible region, which allows the investigation of its photocatalytic properties in visible light. Under simulated sunlight radiation (λ > 400 nm), compound 1 exhibits high photocatalytic activity and good circularity toward the oxidative coupling of amines to imines at room temperature with O2 as the sole oxidant.
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Affiliation(s)
- Wenjing Chen
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, P. R. China
| | - Huafeng Li
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, P. R. China
| | - Junpeng Song
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, P. R. China
| | - Yujie Zhao
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, P. R. China
| | - Pengtao Ma
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, P. R. China
| | - Jingyang Niu
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, P. R. China
| | - Jingping Wang
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, P. R. China
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16
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Badhani G, Joshi A, Adimurthy S. Ionic‐Liquid‐Catalyzed Synthesis of Imines, Benzimidazoles, Benzothiazoles, Quinoxalines and Quinolines through C−N, C−S, and C−C Bond Formation. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101135] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Gaurav Badhani
- Academy of Scientific & Innovative Research, Ghaziabad CSIR-Central Salt & Marine Chemicals Research Institute G. B. Marg Bhavnagar 364 002 Gujarat India
| | - Abhisek Joshi
- Academy of Scientific & Innovative Research, Ghaziabad CSIR-Central Salt & Marine Chemicals Research Institute G. B. Marg Bhavnagar 364 002 Gujarat India
| | - Subbarayappa Adimurthy
- Academy of Scientific & Innovative Research, Ghaziabad CSIR-Central Salt & Marine Chemicals Research Institute G. B. Marg Bhavnagar 364 002 Gujarat India
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17
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Selmi A, Aydi R, Kammoun O, Bougatef H, Bougatef A, Miled N, Alghamdi OA, Kammoun M. Synthesis, crystal structure, molecular docking studies and biological evaluation of aryl substituted dihydroisoquinoline imines as a potent angiotensin converting enzyme inhibitor. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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18
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He P, Lv Y, Shang S, Chen B, Liang H, Niu J, Dai W. Defect‐Rich Core‐Shell Carbon Derived from Ionic Liquid for Direct Synthesis of Imines. ChemistrySelect 2021. [DOI: 10.1002/slct.202100763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Peipei He
- Henan Key Laboratory of Polyoxometalate Chemistry Institute of Molecular and Crystal Engineering College of Chemistry and Chemical Engineering Henan University 475004 Kaifeng China
- Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences 116023 Dalian China
| | - Ying Lv
- Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences 116023 Dalian China
| | - Sensen Shang
- Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences 116023 Dalian China
| | - Bo Chen
- Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences 116023 Dalian China
| | - Hongliang Liang
- Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences 116023 Dalian China
| | - Jingyang Niu
- Henan Key Laboratory of Polyoxometalate Chemistry Institute of Molecular and Crystal Engineering College of Chemistry and Chemical Engineering Henan University 475004 Kaifeng China
| | - Wen Dai
- Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences 116023 Dalian China
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19
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Kumar I, Kumar R, Gupta SS, Sharma U. C 70 Fullerene Catalyzed Photoinduced Aerobic Oxidation of Benzylamines to Imines and Aldehydes. J Org Chem 2021; 86:6449-6457. [PMID: 33886326 DOI: 10.1021/acs.joc.1c00297] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
C70 fullerene catalyzed photoinduced oxidation of benzylic amines at ambient conditions has been explored here. The developed strategy's main feature includes the additive/oxidant-free conversion of benzylic amine to corresponding imine and aldehydes. The reaction manifests broad substrate scope with excellent function group leniency and is applicable up to the gram scale. Further, symmetrical secondary amines can also be synthesized from benzylic amine in a one-pot two-step process. Various experiments and density functional theory studies revealed that the current reaction involves the generation of reactive oxygen species, single electron transfer reaction, and benzyl radical formation as key steps under photocatalytic conditions.
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Affiliation(s)
- Inder Kumar
- Chemical Technology Division, CSIR-Institute of Himalayan Bioresource and Technology, Palampur 176061, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Rakesh Kumar
- Chemical Technology Division, CSIR-Institute of Himalayan Bioresource and Technology, Palampur 176061, India
| | - Shiv Shankar Gupta
- Chemical Technology Division, CSIR-Institute of Himalayan Bioresource and Technology, Palampur 176061, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Upendra Sharma
- Chemical Technology Division, CSIR-Institute of Himalayan Bioresource and Technology, Palampur 176061, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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20
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Lei L, Chen Y, Feng Z, Deng C, Xiao Y. Bioinspired manganese complex for room-temperature oxidation of primary amines to imines by t-butyl hydroperoxide. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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21
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Xu Q, Feng B, Ye C, Fu Y, Chen DL, Zhang F, Zhang J, Zhu W. Atomically Dispersed Vanadium Sites Anchored on N-Doped Porous Carbon for the Efficient Oxidative Coupling of Amines to Imines. ACS APPLIED MATERIALS & INTERFACES 2021; 13:15168-15177. [PMID: 33760597 DOI: 10.1021/acsami.0c22453] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Single-atom catalysts effectively integrate the respective advantages of homogeneous and heterogeneous catalysts and are a pioneering research frontier in catalysis by virtue of their maximized utility of metal atoms and distinct atomic configuration. However, development of such catalysts is still in the early stages. Herein, atomically dispersed vanadium (V) sites that are coordinated by N atoms and inlaid within N-incorporated porous carbon networks were prepared through a top-down strategy by annealing a V-containing metal-organic framework, NH2-MIL-101(V), followed by acid etching. The resulting V-N-C-600 catalyst exhibits unexpected catalytic reactivity, selectivity, and robust stability for the direct aerobic oxidation of benzylamine to generate N-benzylidene benzylamine with molecular oxygen under mild conditions. The turnover frequency reaches 53.9 h-1, which is much superior to those achieved over the commercial V2O5 and state-of-the-art non-noble metal heterogeneous catalysts reported in the literature. Kinetic analysis reveals a low activation energy barrier (37 kJ mol-1) for the benzylamine oxidation and indicates that a carbocationic intermediate is involved in the reaction mechanism. The synergistic effect between the isolated V single-atomic sites and N-doped hierarchically porous carbon network boosts the performance of V-N-C-600. Moreover, V-N-C-600 exhibits a wide generality for the efficient synthesis of a set of symmetrical imines, unsymmetrical imines, and imine derivatives.
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Affiliation(s)
- Qionghao Xu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, People's Republic of China
| | - Binbin Feng
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, People's Republic of China
| | - Chunlin Ye
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, People's Republic of China
| | - Yanghe Fu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, People's Republic of China
| | - De-Li Chen
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, People's Republic of China
| | - Fumin Zhang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, People's Republic of China
| | - Jiangwei Zhang
- State Key Laboratory of Catalysis & Gold Catalysis Research Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Dalian 116023, People's Republic of China
| | - Weidong Zhu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, People's Republic of China
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22
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Li RJ, Ling C, Lv WR, Deng W, Yao ZJ. Cyclometalated Half-Sandwich Iridium(III) Complexes: Synthesis, Structure, and Diverse Catalytic Activity in Imine Synthesis Using Air as the Oxidant. Inorg Chem 2021; 60:5153-5162. [PMID: 33761239 DOI: 10.1021/acs.inorgchem.1c00174] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Four air-stable cyclometalated half-sandwich iridium complexes 1-4 with C,N-donor Schiff base ligands were prepared through C-H activation in moderate-to-good yields. These complexes have been well characterized, and their exact structure was elaborated on by single-crystal X-ray analysis. The iridium(III) complexes 1-4 showed good catalytic activity in the imine synthesis under open-flask conditions (air as the oxidant) from primary amine oxidative homocoupling, secondary amine dehydrogenation, and the cross-coupling reaction of amine and alcohol. Substituents bonded on the ligands of the iridium complexes displayed little effect on the catalytic efficiency. The stability and good catalytic efficiency of the iridium catalysts, mild reaction conditions, and substrate universality showed their potential application in industrial production.
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Affiliation(s)
- Rong-Jian Li
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Chun Ling
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Wen-Rui Lv
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Wei Deng
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Zi-Jian Yao
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China.,Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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23
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Samaraj E, Balaraman E, Manickam S. Functional POM-catalyst for selective oxidative dehydrogenative couplings under aerobic conditions. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111396] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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24
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Wu S, Wei K, Fang W. Influence of Calcination on Mesoporous Mn
1
Zr
0.5
O
y
Solid Solution in Oxidative Coupling Catalysis for Benzylideneaniline Formation. ChemistrySelect 2021. [DOI: 10.1002/slct.202004509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Shipeng Wu
- School of Chemical Science and Technology Key Laboratory of Medicinal Chemistry for Natural Resource – Ministry of Education Yunnan University 2 North Cuihu Road 650091 Kunming China
| | - Kun Wei
- School of Chemical Science and Technology Key Laboratory of Medicinal Chemistry for Natural Resource – Ministry of Education Yunnan University 2 North Cuihu Road 650091 Kunming China
| | - Wenhao Fang
- School of Chemical Science and Technology Key Laboratory of Medicinal Chemistry for Natural Resource – Ministry of Education Yunnan University 2 North Cuihu Road 650091 Kunming China
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25
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An S, Guo Z, Liu X, Che Y, Xing H, Chen P. Visible-light-responsive lanthanide coordination polymers for highly efficient photocatalytic aerobic oxidation of amines and thiols. NEW J CHEM 2021. [DOI: 10.1039/d1nj02416g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photoinduced activation of oxygen by visible-light-responsive CPs via electron/energy transfer and its roles on aerobic oxidation of amines and thiols.
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Affiliation(s)
- Shuyi An
- Laboratory of Advanced Energy Materials, College of Chemistry, Northeast Normal University, Changchun 130021, China
| | - Zhifen Guo
- Laboratory of Advanced Energy Materials, College of Chemistry, Northeast Normal University, Changchun 130021, China
| | - Xin Liu
- Laboratory of Advanced Energy Materials, College of Chemistry, Northeast Normal University, Changchun 130021, China
| | - Yan Che
- Laboratory of Advanced Energy Materials, College of Chemistry, Northeast Normal University, Changchun 130021, China
| | - Hongzhu Xing
- Laboratory of Advanced Energy Materials, College of Chemistry, Northeast Normal University, Changchun 130021, China
| | - Peng Chen
- Key Laboratory of Functional Inorganic Material Chemistry (MOE), School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
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26
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Zeng Y, Lyu P, Cai Y, Gao F, Zhuo O, Wu Q, Yang L, Wang X, Hu Z. Hierarchical Carbon Nanocages as Efficient Catalysts for Oxidative Coupling of Benzylamine to N-Benzylidene Benzylamine. ACTA CHIMICA SINICA 2021. [DOI: 10.6023/a20110527] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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27
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Zhu PY, Han X, Wang XM, Liu Y, Wu SH, Wang SJ, Xu Z, Jia SY, Ren HT. Selective oxidation of aniline contaminants via a hydrogen-abstraction pathway by Bi 2·15WO 6 under visible light and alkaline conditions. CHEMOSPHERE 2020; 261:127719. [PMID: 32758927 DOI: 10.1016/j.chemosphere.2020.127719] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 07/12/2020] [Accepted: 07/14/2020] [Indexed: 06/11/2023]
Abstract
Conversion of aniline wastes to value-added products is always a promising method to treat aniline wastewater. In this study, a selective oxidation of aniline contaminants by Bi2·15WO6 was carried out under visible light and alkaline conditions. Kinetic results show that the oxidation rates of aniline increase with increasing pH values under visible light. UV-vis absorption spectra and GC-MS analysis confirm that azobenzene is the primary oxidation product with aminophenol and N,N'-diphenylhydrazine as the secondary products. The analyses from Mott-Schottky, electrochemical impedance spectroscopy (EIS), transient photocurrent and photoluminescence (PL) further indicate that OH- promotes the separation and transfer of photogenerated electron-hole pairs on the surface of Bi2·15WO6, thus facilitating oxidation of aniline. Quenching experiments and electron spin resonance (ESR) analysis confirm that h+ is the predominant specie in the Bi2·15WO6 system and aniline radical cation (PhNH2•+) is an important intermediate. The Hammett and ΔBDEN-H plots further reveal that e- abstraction from aniline with the formation of PhNH2•+, followed by H+ abstraction from PhNH2•+ with the formation of anilino radicals (PhNH•), is the prerequisite for the formation of N,N'-diphenylhydrazine, which is then oxidized to azobenzene via the hydrogen-abstraction pathway. This work provides a cost-effective method to selectively oxidize aniline to azobenzene.
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Affiliation(s)
- Peng-Yue Zhu
- Key Lab of Indoor Air Environment Quality Control, School of Environmental Science and Engineering, Tianjin University, Tianjin, PR China
| | - Xu Han
- Key Lab of Indoor Air Environment Quality Control, School of Environmental Science and Engineering, Tianjin University, Tianjin, PR China.
| | - Xiang-Ming Wang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, PR China
| | - Yong Liu
- School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin, PR China
| | - Song-Hai Wu
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, PR China
| | - Shi-Jie Wang
- Key Lab of Indoor Air Environment Quality Control, School of Environmental Science and Engineering, Tianjin University, Tianjin, PR China
| | - Zhi Xu
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, PR China
| | - Shao-Yi Jia
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, PR China
| | - Hai-Tao Ren
- School of Textile Science and Engineering, Tiangong University, Tianjin, PR China.
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28
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Yagüe C, Echevarría I, Vaquero M, Fidalgo J, Carbayo A, Jalón FA, Lima JC, Moro AJ, Manzano BR, Espino G. Non-emissive Ru II Polypyridyl Complexes as Efficient and Selective Photosensitizers for the Photooxidation of Benzylamines. Chemistry 2020; 26:12219-12232. [PMID: 32301532 DOI: 10.1002/chem.202001460] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 04/16/2020] [Indexed: 11/07/2022]
Abstract
Five new RuII polypyridyl complexes bearing N-(arylsulfonyl)-8-amidoquinolate ligands and three of their biscyclometalated IrIII congeners have been prepared and employed as photocatalysts (PCs) in the photooxidation of benzylamines with O2 . In particular, the new RuII complexes do not exhibit photoluminescence, rather they harvest visible light efficiently and are very stable in solution under irradiation with blue light. Their non-emissive behavior has been related to the low electrochemical energy gaps and rationalized on the basis of theoretical calculations (DFT analysis) that predict low S0 ←T1 energy values. Moreover, the RuII complexes, despite being non-emissive, display excellent activities in the selective photocatalytic transformation of benzylamines into the corresponding imines. The presence of an electron-withdrawing group (-CF3) on the arene ring of the N-(arylsulfonyl)-8-amidoquinolate ligand improves the photocatalytic activity of the corresponding photocatalyst. Furthermore, all the experimental evidence, including transient absorption spectroscopy measurements suggest that singlet oxygen is the actual oxidant. The IrIII analogues are considerably more photosensitive and consequently less efficient photosensitizers (PSs).
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Affiliation(s)
- Cristina Yagüe
- Universidad de Burgos, Departamento de Química, Facultad de Ciencias, Plaza Misael Bañuelos s/n, 09001, Burgos, Spain
| | - Igor Echevarría
- Universidad de Burgos, Departamento de Química, Facultad de Ciencias, Plaza Misael Bañuelos s/n, 09001, Burgos, Spain
| | - Mónica Vaquero
- Universidad de Burgos, Departamento de Química, Facultad de Ciencias, Plaza Misael Bañuelos s/n, 09001, Burgos, Spain
| | - Jairo Fidalgo
- Universidad de Burgos, Departamento de Química, Facultad de Ciencias, Plaza Misael Bañuelos s/n, 09001, Burgos, Spain
| | - Arancha Carbayo
- Universidad de Burgos, Departamento de Química, Facultad de Ciencias, Plaza Misael Bañuelos s/n, 09001, Burgos, Spain
| | - Félix A Jalón
- Universidad de Castilla-La Mancha, Departamento de Química Inorgánica, Orgánica y Bioquímica, Facultad de Químicas, Avda. Camilo J. Cela 10, 13071, Ciudad Real, Spain
| | - João C Lima
- Universidade NOVA de Lisboa, LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, 2829-516, Caparica, Portugal
| | - Artur J Moro
- Universidade NOVA de Lisboa, LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, 2829-516, Caparica, Portugal
| | - Blanca R Manzano
- Universidad de Castilla-La Mancha, Departamento de Química Inorgánica, Orgánica y Bioquímica, Facultad de Químicas, Avda. Camilo J. Cela 10, 13071, Ciudad Real, Spain
| | - Gustavo Espino
- Universidad de Burgos, Departamento de Química, Facultad de Ciencias, Plaza Misael Bañuelos s/n, 09001, Burgos, Spain
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29
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30
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Zhao C, Gao Y, Zhang Z, Ma D. Functions of Phytic Acid in Fabricating
Metal‐Free
Carbocatalyst for Oxidative Coupling of Benzylamines
†. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.202000145] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Chuanchuan Zhao
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, College of Chemistry and Environmental Science, Hebei University Baoding Hebei 071002 China
| | - Yongjun Gao
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, College of Chemistry and Environmental Science, Hebei University Baoding Hebei 071002 China
| | - Ziyi Zhang
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, College of Chemistry and Environmental Science, Hebei University Baoding Hebei 071002 China
| | - Ding Ma
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering and College of Engineering, and BIC‐ESAT, Peking University Beijing 100871 China
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31
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Chutimasakul T, Na Nakhonpanom P, Tirdtrakool W, Intanin A, Bunchuay T, Chantiwas R, Tantirungrotechai J. Uniform Cu/chitosan beads as a green and reusable catalyst for facile synthesis of imines via oxidative coupling reaction. RSC Adv 2020; 10:21009-21018. [PMID: 35517779 PMCID: PMC9054277 DOI: 10.1039/d0ra03884a] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 05/25/2020] [Indexed: 01/09/2023] Open
Abstract
A nonprecious metal and biopolymer-based catalyst, Cu/chitosan beads, has been successfully prepared by using a software-controlled flow system. Uniform, spherical Cu/chitosan beads can be obtained with diameters in millimeter-scale and narrow size distribution (0.78 ± 0.04 mm). The size and morphology of the Cu/chitosan beads are reproducible due to high precision of the flow rate. In addition, the application of the Cu/chitosan beads as a green and reusable catalyst has been demonstrated using a convenient and efficient protocol for the direct synthesis of imines via the oxidative self- and cross-coupling of amines (24 examples) with moderate to excellent yields. Importantly, the beads are stable and could be reused more than ten times without loss of the catalytic performance. Furthermore, because of the bead morphology, the Cu/chitosan catalyst has greatly simplified recycling and workup procedures. Uniform, spherical Cu/chitosan beads prepared using a software-controlled flow system as a green and conveniently recyclable catalyst for the efficient synthesis of various imines in short reaction time.![]()
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Affiliation(s)
- Threeraphat Chutimasakul
- Department of Chemistry, Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University Bangkok 10400 Thailand
| | - Pakamon Na Nakhonpanom
- Department of Chemistry, Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University Bangkok 10400 Thailand
| | - Warinda Tirdtrakool
- Department of Chemistry, Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University Bangkok 10400 Thailand
| | - Apichai Intanin
- Department of Chemistry, Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University Bangkok 10400 Thailand
| | - Thanthapatra Bunchuay
- Department of Chemistry, Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University Bangkok 10400 Thailand
| | - Rattikan Chantiwas
- Department of Chemistry, Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University Bangkok 10400 Thailand
| | - Jonggol Tantirungrotechai
- Department of Chemistry, Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University Bangkok 10400 Thailand
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32
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Hazra S, Malik E, Nair A, Tiwari V, Dolui P, Elias AJ. Catalytic Oxidation of Alcohols and Amines to Value‐Added Chemicals using Water as the Solvent. Chem Asian J 2020; 15:1916-1936. [DOI: 10.1002/asia.202000299] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 04/20/2020] [Indexed: 01/12/2023]
Affiliation(s)
- Susanta Hazra
- Department of ChemistryIndian Institute of Technology, Delhi Hauz Khas New Delhi 110016 India
| | - Ekta Malik
- Department of ChemistryIndian Institute of Technology, Delhi Hauz Khas New Delhi 110016 India
| | - Abhishek Nair
- Department of ChemistryIndian Institute of Technology, Delhi Hauz Khas New Delhi 110016 India
| | - Vikas Tiwari
- Department of ChemistryIndian Institute of Technology, Delhi Hauz Khas New Delhi 110016 India
| | - Pritam Dolui
- Department of ChemistryIndian Institute of Technology, Delhi Hauz Khas New Delhi 110016 India
| | - Anil J. Elias
- Department of ChemistryIndian Institute of Technology, Delhi Hauz Khas New Delhi 110016 India
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33
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Cui X, Li W, Junge K, Fei Z, Beller M, Dyson PJ. Selective Acceptorless Dehydrogenation of Primary Amines to Imines by Core-Shell Cobalt Nanoparticles. Angew Chem Int Ed Engl 2020; 59:7501-7507. [PMID: 32049401 PMCID: PMC7217016 DOI: 10.1002/anie.201915526] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 01/16/2020] [Indexed: 01/25/2023]
Abstract
Core-shell nanocatalysts are attractive due to their versatility and stability. Here, we describe cobalt nanoparticles encapsulated within graphitic shells prepared via the pyrolysis of a cationic poly-ionic liquid (PIL) with a cobalt(II) chloride anion. The resulting material has a core-shell structure that displays excellent activity and selectivity in the self-dehydrogenation and hetero-dehydrogenation of primary amines to their corresponding imines. Furthermore, the catalyst exhibits excellent activity in the synthesis of secondary imines from substrates with various reducible functional groups (C=C, C≡C and C≡N) and amino acid derivatives.
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Affiliation(s)
- Xinjiang Cui
- Institute of Chemical Sciences and EngineeringÉcole Polytechnique Fedérale de Lausanne (EPFL)1015LausanneSwitzerland
| | - Wu Li
- Leibniz-Institute for CatalysisAlbert Einstein Str. 29a18059RostockGermany
| | - Kathrin Junge
- Leibniz-Institute for CatalysisAlbert Einstein Str. 29a18059RostockGermany
| | - Zhaofu Fei
- Institute of Chemical Sciences and EngineeringÉcole Polytechnique Fedérale de Lausanne (EPFL)1015LausanneSwitzerland
| | - Matthias Beller
- Leibniz-Institute for CatalysisAlbert Einstein Str. 29a18059RostockGermany
| | - Paul J. Dyson
- Institute of Chemical Sciences and EngineeringÉcole Polytechnique Fedérale de Lausanne (EPFL)1015LausanneSwitzerland
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34
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A robust phenazine-containing organic polymer as catalyst for amine oxidative coupling reactions. J Catal 2020. [DOI: 10.1016/j.jcat.2020.03.031] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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35
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Wu H, Cao Y, Zhu G, Zeng D, Zhu X, Du J, He L. π-Conjugated polymeric phthalocyanine for the oxidative coupling of amines. Chem Commun (Camb) 2020; 56:3637-3640. [PMID: 32105284 DOI: 10.1039/c9cc09422a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A cross-linked π-conjugated polymeric cobalt phthalocyanine material was developed by a facile, economical, scalable, and solid-phase synthesis method. In addition to being highly recyclable, this material showed greatly enhanced activity for the aerobic oxidative coupling of amines compared with a molecular catalyst before heterogenization, indicating good prospects for the material with a π-conjugated electronic character.
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Affiliation(s)
- Haihong Wu
- Henan Province Key Laboratory of New Opto-Electronic Functional Materials, College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang, Henan 455000, China
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36
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Fan XN, Ou HD, Deng W, Yao ZJ. Air-Stable Half-Sandwich Iridium Complexes as Aerobic Oxidation Catalysts for Imine Synthesis. Inorg Chem 2020; 59:4800-4809. [DOI: 10.1021/acs.inorgchem.0c00073] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Xiao-Nan Fan
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Hui-Dan Ou
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Wei Deng
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Zi-Jian Yao
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
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37
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Cui X, Li W, Junge K, Fei Z, Beller M, Dyson PJ. Selective Acceptorless Dehydrogenation of Primary Amines to Imines by Core–Shell Cobalt Nanoparticles. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915526] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Xinjiang Cui
- Institute of Chemical Sciences and EngineeringÉcole Polytechnique Fedérale de Lausanne (EPFL) 1015 Lausanne Switzerland
| | - Wu Li
- Leibniz-Institute for Catalysis Albert Einstein Str. 29a 18059 Rostock Germany
| | - Kathrin Junge
- Leibniz-Institute for Catalysis Albert Einstein Str. 29a 18059 Rostock Germany
| | - Zhaofu Fei
- Institute of Chemical Sciences and EngineeringÉcole Polytechnique Fedérale de Lausanne (EPFL) 1015 Lausanne Switzerland
| | - Matthias Beller
- Leibniz-Institute for Catalysis Albert Einstein Str. 29a 18059 Rostock Germany
| | - Paul J. Dyson
- Institute of Chemical Sciences and EngineeringÉcole Polytechnique Fedérale de Lausanne (EPFL) 1015 Lausanne Switzerland
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38
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Yuan Y, Sun L, Li Y, Zhan W, Wang X, Han X. Synergistic Modulation of Active Sites and Charge Transport: N/S Co-doped C Encapsulated NiCo2O4/NiO Hollow Microrods for Boosting Oxygen Evolution Catalysis. Inorg Chem 2020; 59:4080-4089. [DOI: 10.1021/acs.inorgchem.0c00089] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yusheng Yuan
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Chemical Engineering, Jiangsu Normal University, Xuzhou 221116, People’s Republic of China
| | - Liming Sun
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Chemical Engineering, Jiangsu Normal University, Xuzhou 221116, People’s Republic of China
| | - Yinwei Li
- School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, People’s Republic of China
| | - Wenwen Zhan
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Chemical Engineering, Jiangsu Normal University, Xuzhou 221116, People’s Republic of China
| | - Xiaojun Wang
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Chemical Engineering, Jiangsu Normal University, Xuzhou 221116, People’s Republic of China
| | - Xiguang Han
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Chemical Engineering, Jiangsu Normal University, Xuzhou 221116, People’s Republic of China
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39
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Khampuanbut A, Santalelat S, Pankiew A, Channei D, Pornsuwan S, Faungnawakij K, Phanichphant S, Inceesungvorn B. Visible-light-driven WO3/BiOBr heterojunction photocatalysts for oxidative coupling of amines to imines: Energy band alignment and mechanistic insight. J Colloid Interface Sci 2020; 560:213-224. [PMID: 31670019 DOI: 10.1016/j.jcis.2019.10.057] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 10/14/2019] [Accepted: 10/15/2019] [Indexed: 01/06/2023]
Affiliation(s)
- Amornrat Khampuanbut
- Graduate School, Chiang Mai University, Chiang Mai 50200, Thailand; Department of Chemistry, Center of Excellence for Innovation in Chemistry (PERCH-CIC), Center of Excellence in Materials Science and Technology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Sarunya Santalelat
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand
| | - Apirak Pankiew
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand
| | - Duangdao Channei
- Department of Chemistry, Faculty of Science, Naresuan University, Phitsanulok 65000, Thailand
| | - Soraya Pornsuwan
- Department of Chemistry, Faculty of Science and Center of Excellence for Innovation in Chemistry, Mahidol University, Bangkok 10400, Thailand
| | - Kajornsak Faungnawakij
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathumthani 12120, Thailand
| | - Sukon Phanichphant
- Department of Chemistry, Center of Excellence for Innovation in Chemistry (PERCH-CIC), Center of Excellence in Materials Science and Technology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Burapat Inceesungvorn
- Department of Chemistry, Center of Excellence for Innovation in Chemistry (PERCH-CIC), Center of Excellence in Materials Science and Technology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.
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40
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Jena HS, Krishnaraj C, Schmidt J, Leus K, Van Hecke K, Van Der Voort P. Effect of Building Block Transformation in Covalent Triazine-Based Frameworks for Enhanced CO 2 Uptake and Metal-Free Heterogeneous Catalysis. Chemistry 2019; 26:1548-1557. [PMID: 31603596 DOI: 10.1002/chem.201903926] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 10/04/2019] [Indexed: 01/14/2023]
Abstract
Covalent triazine frameworks (CTFs) have provided a unique platform in functional material design for a wide range of applications. This work reports a series of new CTFs with two new heteroaromatic building blocks (pyrazole and isoxazole groups) through a building-block transformation approach aiming for carbon capture and storage (CCS) and metal-free catalysis. The CTFs were synthesized from their respective building blocks [(4,4'-(1H-pyrazole-3,5-diyl)dibenzonitrile (pyz) and 4,4'-(isoxazole-3,5-diyl)dibenzonitrile (isox))] under ionothermal conditions using ZnCl2 . Both of the building blocks were designed by an organic transformation of an acetylacetone containing dinitrile linker to pyrazole and isoxazole groups, respectively. Due to this organic transformation, (i) linker aromatization, (ii) higher surface areas and nitrogen contents, (iii) higher aromaticity, and (iv) higher surface basicity was achieved. Due to these enhanced properties, CTFs were explored for CO2 uptake and metal-free heterogeneous catalysis. Among all, the isox-CTF, synthesized at 400 °C, showed the highest CO2 uptake (4.92 mmol g-1 at 273 K and 2.98 mmol g-1 at 298 K at 1 bar). Remarkably, these CTFs showed excellent metal-free catalytic activity for the aerobic oxidation of benzylamine at mild reaction conditions. On studying the properties of the CTFs, it was observed that organic transformations and ligand aromatization of the materials are crucial factor to tune the important parameters that influence the CO2 uptake and the catalytic activity. Overall, this work highlights the substantial effect of designing new CTF materials by building-block organic transformations resulting in better properties for CCS applications and heterogeneous catalysis.
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Affiliation(s)
- Himanshu Sekhar Jena
- Center for Ordered Materials, Organometallics and Catalysis (COMOC), Department of Chemistry, Ghent University, Krijgslaan 281 (S3 B), 9000, Ghent, Belgium
| | - Chidharth Krishnaraj
- Center for Ordered Materials, Organometallics and Catalysis (COMOC), Department of Chemistry, Ghent University, Krijgslaan 281 (S3 B), 9000, Ghent, Belgium
| | - Johannes Schmidt
- Technische Universität Berlin, Institut für Chemie-Funktionsmaterialien, Hardenbergstraße 40, 10623, Berlin, Germany
| | - Karen Leus
- Center for Ordered Materials, Organometallics and Catalysis (COMOC), Department of Chemistry, Ghent University, Krijgslaan 281 (S3 B), 9000, Ghent, Belgium
| | - Kristof Van Hecke
- XStruct, Department of Chemistry, Ghent University, Krijgslaan 281 (S3 B), 9000, Ghent, Belgium
| | - Pascal Van Der Voort
- Center for Ordered Materials, Organometallics and Catalysis (COMOC), Department of Chemistry, Ghent University, Krijgslaan 281 (S3 B), 9000, Ghent, Belgium
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41
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Li S, Li G, Ji P, Zhang J, Liu S, Zhang J, Chen X. A Giant Mo/Ta/W Ternary Mixed-Addenda Polyoxometalate with Efficient Photocatalytic Activity for Primary Amine Coupling. ACS APPLIED MATERIALS & INTERFACES 2019; 11:43287-43293. [PMID: 31658808 DOI: 10.1021/acsami.9b16694] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The reactivity and properties of polyoxometalates (POMs) vary remarkably as a function of the kind of addenda atoms, so the design and synthesis of new mixed-addenda POMs is a promising approach for the further development of the POM-related areas. In the present work, the first Mo/Ta/W ternary mixed-addenda POM (NH4)41H7[K3(H2O)3(P2W15Ta3O62)6(Mo2O4CH3CO2)3(MoO3)2]·85H2O (1), which is composed of 6 {P2W15Ta3O62} linked by 3 {MoV2O4(OOCCH3)+} and 2 {MoVIO3} via 18 novel Mo-O-Ta bridges has been synthesized. The precursor {P2W15Ta3}, which has lower redox potential, is crucial for the formation of 1. The red-brown solid sample of 1 shows strong absorption in the visible region. The visible-light responsive charge transfer from benzylamine to 1 was observed experimentally. 1 was proved to be an efficient photocatalyst under simulated sunlight (AM 1.5G) radiation for the oxidative coupling of primary amines to imines using atmospheric O2.
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Affiliation(s)
- Shujun Li
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, School of Chemistry and Chemical Engineering , Henan Normal University , Xinxiang 453007 , China
| | - Gang Li
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, School of Chemistry and Chemical Engineering , Henan Normal University , Xinxiang 453007 , China
| | - Panpan Ji
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, School of Chemistry and Chemical Engineering , Henan Normal University , Xinxiang 453007 , China
| | - Jiangwei Zhang
- Gold Catalysis Research Center, State Key Laboratory of Catalysis , Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023 , China
| | - Shuxia Liu
- Key Laboratory of Polyoxometalates Science of Ministry of Education, College of Chemistry , Northeast Normal University , Changchun , Jilin 130024 , China
| | - Jie Zhang
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, School of Chemistry and Chemical Engineering , Henan Normal University , Xinxiang 453007 , China
| | - Xuenian Chen
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, School of Chemistry and Chemical Engineering , Henan Normal University , Xinxiang 453007 , China
- College of Chemistry and Molecular Engineering , Zhengzhou University , Zhengzhou 450001 , China
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42
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Li Y, Shang S, Wang L, Lv Y, Niu J, Gao S. Selectivity-tunable amine aerobic oxidation catalysed by metal-free N,O-doped carbons. Chem Commun (Camb) 2019; 55:12251-12254. [PMID: 31555780 DOI: 10.1039/c9cc06793k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we present a series of N,O-doped mesoporous carbons obtained at different pyrolysis temperatures as the first metal-free catalysts which successfully switch between imine and nitrile products for amine oxidation. Systematic characterization studies and control experiments revealed that the C-O group on the surface could function as a catalytically active site for nitrile synthesis and the N-doping environment was essential.
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Affiliation(s)
- Yingguang Li
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China. and Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
| | - Sensen Shang
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
| | - Lianyue Wang
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
| | - Ying Lv
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
| | - Jingyang Niu
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China.
| | - Shuang Gao
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
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43
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The preparation and photocatalytic activity of Ag-Pd/g-C3N4 for the coupling reaction between benzyl alcohol and aniline. MOLECULAR CATALYSIS 2019. [DOI: 10.1016/j.mcat.2019.110533] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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44
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He H, Li Z, Li K, Lei G, Guan X, Zhang G, Zhang F, Fan X, Peng W, Li Y. Bifunctional Graphene-Based Metal-Free Catalysts for Oxidative Coupling of Amines. ACS APPLIED MATERIALS & INTERFACES 2019; 11:31844-31850. [PMID: 31382740 DOI: 10.1021/acsami.9b08741] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Graphene oxide (GO), an emerging material ornamented with oxygen-containing functional groups, is becoming a promising alternative for various applications. The piranha solution treatment of GO can increase oxygen-containing functional groups and result in improved graphene oxide (IGO), as well as restore the functional groups lost because of the reaction. It is found that GO can oxidize the amine to the corresponding imine in the absence of oxygen and a catalyst, and the obtained IGO even shows higher activity. In addition, the piranha solution can partially restore the reactivity of GO after the reaction. The different roles of oxygen-containing functional groups in the oxidative coupling reaction are investigated. A possible reaction mechanism for the oxidation of benzylamine to N-benzylidene benzylamine is also proposed.
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Affiliation(s)
- Hongwei He
- Lab of Advanced Nano Structures & Transfer Processes, Department of Chemical Engineering , Tianjin University , Tianjin 300354 , P. R. China
| | - Zhen Li
- Lab of Advanced Nano Structures & Transfer Processes, Department of Chemical Engineering , Tianjin University , Tianjin 300354 , P. R. China
| | - Kai Li
- Lab of Advanced Nano Structures & Transfer Processes, Department of Chemical Engineering , Tianjin University , Tianjin 300354 , P. R. China
| | - Guangyu Lei
- Lab of Advanced Nano Structures & Transfer Processes, Department of Chemical Engineering , Tianjin University , Tianjin 300354 , P. R. China
| | - Xinglong Guan
- Lab of Advanced Nano Structures & Transfer Processes, Department of Chemical Engineering , Tianjin University , Tianjin 300354 , P. R. China
| | - Guoliang Zhang
- Lab of Advanced Nano Structures & Transfer Processes, Department of Chemical Engineering , Tianjin University , Tianjin 300354 , P. R. China
| | - Fengbao Zhang
- Lab of Advanced Nano Structures & Transfer Processes, Department of Chemical Engineering , Tianjin University , Tianjin 300354 , P. R. China
| | - Xiaobin Fan
- Lab of Advanced Nano Structures & Transfer Processes, Department of Chemical Engineering , Tianjin University , Tianjin 300354 , P. R. China
| | - Wenchao Peng
- Lab of Advanced Nano Structures & Transfer Processes, Department of Chemical Engineering , Tianjin University , Tianjin 300354 , P. R. China
| | - Yang Li
- Lab of Advanced Nano Structures & Transfer Processes, Department of Chemical Engineering , Tianjin University , Tianjin 300354 , P. R. China
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45
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Wang J, Pan X, Li F. Mesoporous carbon with high content of graphitic nitrogen for selective oxidation of ethylbenzene. RSC Adv 2019; 9:28253-28257. [PMID: 35530464 PMCID: PMC9071133 DOI: 10.1039/c9ra05386g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Accepted: 08/22/2019] [Indexed: 12/26/2022] Open
Abstract
Graphitic-nitrogen doped mesoporous carbon (accounting 85% in all nitrogen species) was easily synthesized by using acetonitrile as a precursor and SBA-15 as a hard template through a chemical vapour deposition method and exhibited a better catalytic performance than other nitrogen-doped carbon materials for selective oxidation of ethylbenzene.
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Affiliation(s)
- Jia Wang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of SciencesLanzhou 730000PR China
| | - Xiaoli Pan
- State Key Laboratory of Catalysis, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Dalian Institute of Chemical Physics, Chinese Academy of SciencesDalian 116023China
| | - Fuwei Li
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of SciencesLanzhou 730000PR China
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46
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Aman M, Tremmel J, Dostál L, Erben M, Tydlitát J, Jansa J, Jambor R. Highly Active and Selective Ru‐PN
H
Catalyst in Aerobic Oxidation of Benzyl Amines. ChemCatChem 2019. [DOI: 10.1002/cctc.201900952] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Michal Aman
- Department of General and Inorganic Chemistry Faculty of Chemical TechnologyUniversity of Pardubice Pardubice 53210 Czech Republic
| | - Jakub Tremmel
- Department of General and Inorganic Chemistry Faculty of Chemical TechnologyUniversity of Pardubice Pardubice 53210 Czech Republic
| | - Libor Dostál
- Department of General and Inorganic Chemistry Faculty of Chemical TechnologyUniversity of Pardubice Pardubice 53210 Czech Republic
| | - Milan Erben
- Department of General and Inorganic Chemistry Faculty of Chemical TechnologyUniversity of Pardubice Pardubice 53210 Czech Republic
| | - Jiří Tydlitát
- Department of Organic Chemistry and Technology Faculty of Chemical TechnologyUniversity of Pardubice Pardubice 53210 Czech Republic
| | - Josef Jansa
- Research Institute for Organic Syntheses (VUOS) Pardubice-Rybitví CZ-533 54 Czech Republic
| | - Roman Jambor
- Department of General and Inorganic Chemistry Faculty of Chemical TechnologyUniversity of Pardubice Pardubice 53210 Czech Republic
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47
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Zheng H, Shi S, Wang X, Zhao L, Zhu G, Liu M, Gao J, Xu J. Covalent Triazine Frameworks as Metal Free Catalysts for the Oxidative Coupling of Amines to Imines. ChemistrySelect 2019. [DOI: 10.1002/slct.201901272] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- He Zheng
- Dalian Polytechnic University School of Textile and Material Engineering Dalian 116034 P.R. China
- Dalian Institute of Chemical PhysicsDalian National Laboratory for Clean Energy Chinese Academy of SciencesState Key Laboratory of Catalysis Dalian 116023 P.R. China
| | - Song Shi
- Dalian Institute of Chemical PhysicsDalian National Laboratory for Clean Energy Chinese Academy of SciencesState Key Laboratory of Catalysis Dalian 116023 P.R. China
| | - Xinhong Wang
- Dalian Polytechnic University School of Textile and Material Engineering Dalian 116034 P.R. China
| | - Li Zhao
- Dalian Institute of Chemical PhysicsDalian National Laboratory for Clean Energy Chinese Academy of SciencesState Key Laboratory of Catalysis Dalian 116023 P.R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Guozhi Zhu
- Dalian Institute of Chemical PhysicsDalian National Laboratory for Clean Energy Chinese Academy of SciencesState Key Laboratory of Catalysis Dalian 116023 P.R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Meng Liu
- Dalian Institute of Chemical PhysicsDalian National Laboratory for Clean Energy Chinese Academy of SciencesState Key Laboratory of Catalysis Dalian 116023 P.R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Jin Gao
- Dalian Institute of Chemical PhysicsDalian National Laboratory for Clean Energy Chinese Academy of SciencesState Key Laboratory of Catalysis Dalian 116023 P.R. China
| | - Jie Xu
- Dalian Institute of Chemical PhysicsDalian National Laboratory for Clean Energy Chinese Academy of SciencesState Key Laboratory of Catalysis Dalian 116023 P.R. China
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48
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Shang SS, Gao S. Heteroatom‐Enhanced Metal‐Free Catalytic Performance of Carbocatalysts for Organic Transformations. ChemCatChem 2019. [DOI: 10.1002/cctc.201900336] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Sen S. Shang
- Dalian National Laboratory for Clean Energy Dalian Institute of Chemical PhysicsChinese Academy of Sciences Dalian 116023 P. R. China
| | - Shuang Gao
- Dalian National Laboratory for Clean Energy Dalian Institute of Chemical PhysicsChinese Academy of Sciences Dalian 116023 P. R. China
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49
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Preparation of Co-Pd bimetallic nanoparticles encapsulated in bamboo-like N-doped mesoporous carbon by a facile one-pot method for green Suzuki coupling. RESEARCH ON CHEMICAL INTERMEDIATES 2019. [DOI: 10.1007/s11164-019-03822-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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50
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Sarkar C, Pendem S, Shrotri A, Dao DQ, Pham Thi Mai P, Nguyen Ngoc T, Chandaka DR, Rao TV, Trinh QT, Sherburne MP, Mondal J. Interface Engineering of Graphene-Supported Cu Nanoparticles Encapsulated by Mesoporous Silica for Size-Dependent Catalytic Oxidative Coupling of Aromatic Amines. ACS APPLIED MATERIALS & INTERFACES 2019; 11:11722-11735. [PMID: 30838855 DOI: 10.1021/acsami.8b18675] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In this study, graphene nanosheet-supported ultrafine Cu nanoparticles (NPs) encapsulated with thin mesoporous silica (Cu-GO@m-SiO2) materials are fabricated with particle sizes ranging from 60 to 7.8 nm and are systematically investigated for the oxidative coupling of amines to produce biologically and pharmaceutically important imine derivatives. Catalytic activity remarkably increased from 76.5% conversion of benzyl amine for 60 nm NPs to 99.3% conversion and exclusive selectivity of N-benzylidene-1-phenylmethanamine for 7.8 nm NPs. The superior catalytic performance along with the outstanding catalyst stability of newly designed catalysts are attributed to the easy diffusion of organic molecules through the porous channel of mesoporous SiO2 layers, which not only restricts the restacking of the graphene nanosheets but also prevents the sintering and leaching of metal NPs to an extreme extent through the nanoconfinement effect. Density functional theory calculations were performed to shed light on the reaction mechanism and to give insight into the trend of catalytic activity observed. The computed activation barriers of all elementary steps are very high on terrace Cu(111) sites, which dominate the large-sized Cu NPs, but are significantly lower on step sites, which are presented in higher density on smaller-sized Cu NPs and could explain the higher activity of smaller Cu-GO@m-SiO2 samples. In particular, the activation barrier for the elementary coupling reaction is reduced from 139 kJ/mol on flat terrace Cu(111) sites to the feasible value of 94 kJ/mol at step sites, demonstrating the crucial role of the step site in facilitating the formation of secondary imine products.
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Affiliation(s)
- Chitra Sarkar
- Catalysis & Fine Chemicals Division , CSIR-Indian Institute of Chemical Technology , Uppal Road , Hyderabad 500007 , India
| | - Saikiran Pendem
- Catalysis & Fine Chemicals Division , CSIR-Indian Institute of Chemical Technology , Uppal Road , Hyderabad 500007 , India
| | - Abhijit Shrotri
- Institute for Catalysis , Hokkaido University , Kita 21 Nishi 10 , Kita-Ku, Sapporo 001-0021 , Japan
| | - Duy Quang Dao
- Institute of Research and Development , Duy Tan University , 03 Quang Trung , Danang 550000 , Vietnam
| | | | | | - Dhanunjaya Rao Chandaka
- Catalysis & Fine Chemicals Division , CSIR-Indian Institute of Chemical Technology , Uppal Road , Hyderabad 500007 , India
| | - Tumula Venkateshwar Rao
- Catalysis & Fine Chemicals Division , CSIR-Indian Institute of Chemical Technology , Uppal Road , Hyderabad 500007 , India
| | - Quang Thang Trinh
- Institute of Research and Development , Duy Tan University , 03 Quang Trung , Danang 550000 , Vietnam
- Cambridge Centre for Advanced Research and Education in Singapore (CARES) , Campus for Research Excellence and Technological Enterprise (CREATE) , 1 Create Way , 138602 , Singapore
| | - Matthew P Sherburne
- A Singapore Berkeley Research Initiative for Sustainable Energy , Berkeley Educational Alliance for Research in Singapore , 1 Create Way , 138602 , Singapore
- Materials Science and Engineering Department , University of California, Berkeley , Berkeley , California 94720 , United States
| | - John Mondal
- Catalysis & Fine Chemicals Division , CSIR-Indian Institute of Chemical Technology , Uppal Road , Hyderabad 500007 , India
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